{"id":30472,"date":"2022-12-05T12:13:48","date_gmt":"2023-12-28T21:42:10","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90php8-0%e3%80%91php8-0%e7%9a%84%e6%96%b0%e5%8a%9f%e8%83%bd-2\/"},"modified":"2025-08-12T19:19:59","modified_gmt":"2025-08-12T11:19:59","slug":"%e3%80%90php8-0%e3%80%91php8-0%e7%9a%84%e6%96%b0%e5%8a%9f%e8%83%bd-2","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90php8-0%e3%80%91php8-0%e7%9a%84%e6%96%b0%e5%8a%9f%e8%83%bd-2\/","title":{"rendered":"\u3010PHP8.0\u3011PHP8.0\u7684\u65b0\u529f\u80fd"},"content":{"rendered":"

PHP8.2 \/ PHP8.1 \/ PHP8.0 \/ PHP7.4 \u53ef\u4f9b\u9009\u62e9\u7684 PHP \u7248\u672c\u4e3a\uff1a<\/p>\n

2020\u5e7411\u670826\u65e5\u53d1\u5e03\u3002<\/p>\n

2020\u5e748\u67084\u65e5\uff0cPHP 8.0\u7684\u529f\u80fd\u51cd\u7d50\u5df2\u7d93\u5b8c\u6210\u3002
\n\u9019\u610f\u5473\u8457\u8207\u8a9e\u8a00\u529f\u80fd\u76f8\u95dc\u7684\u529f\u80fd\u6dfb\u52a0\u548c\u4fee\u6539\u5df2\u7d93\u622a\u6b62\u3002
\n\u672a\u4f86\u5c07\u5728\u4e0d\u65b7\u9032\u884c\u8abf\u8a66\u7684\u904e\u7a0b\u4e2d\u63d0\u9ad8\u5b8c\u6574\u6027\uff0c\u9810\u8a08\u65bc2020\u5e7411\u670826\u65e5\u767c\u5e03PHP 8.0\u3002<\/p>\n

\u8ba9\u6211\u4eec\u6765\u770b\u4e00\u4e0b\u51b3\u5b9a\u5728PHP8.0\u4e2d\u589e\u52a0\u652f\u6301\u7684RFC\u3002<\/p>\n

RFC \u8ba1\u5212<\/p>\n

\u5373\u65f6\u7f16\u8bd1\u4ee550\u7968\u8d5e\u6210\uff0c2\u7968\u53cd\u5bf9\u901a\u8fc7\u3002
\nPHP8\u7684\u4eae\u70b9\u662fJIT\u3002<\/p>\n

\u5c06PHP\u7f16\u8bd1\u4e3a\u672c\u673a\u4ee3\u7801\uff0c\u5e76\u53ef\u4ee5\u91cd\u7528\u7f16\u8bd1\u7ed3\u679c\u4e8e\u4e0b\u4e00\u4e2a\u8bf7\u6c42\u3002
\n\u901f\u5ea6\u65b9\u9762\uff0c\u76f8\u8f83\u4e8e\u542f\u7528Opcache\u7684\u60c5\u51b5\u4e0b\uff0c\u5e73\u5747\u53ef\u4ee5\u63d0\u9ad81.3-1.5\u500d\uff0c\u4e14\u5bf9\u4e8eCPU\u5bc6\u96c6\u578b\u5904\u7406\uff0c\u901f\u5ea6\u63d0\u5347\u53ef\u8fbe3\u500d\u4ee5\u4e0a\u3002
\n\u82e5\u6ca1\u6709\u4f7f\u7528Opcache\uff0c\u5904\u7406\u65f6\u95f4\u4ece1\u5206\u949f\u51cf\u5c11\u4e3a8\u79d2\u3002<\/p>\n

\u5982\u679c\u4e0ePHP7.4\u5f15\u5165\u7684\u9884\u52a0\u8f7d\u7ed3\u5408\u4f7f\u7528\uff0c\u8fd9\u96be\u9053\u4e0d\u5df2\u7ecf\u6210\u4e3a\u4e00\u79cd\u7f16\u8bd1\u8bed\u8a00\u4e86\u5417\uff1f<\/p>\n

\u547d\u540d\u53c2\u6570\u4ee557\u7968\u8d5e\u6210\u300118\u7968\u53cd\u5bf9\u4e88\u8ba1\u901a\u8fc7\u3002
\n\u8fd9\u662f\u6307\u5b9a\u547d\u540d\u53c2\u6570\u3002<\/p>\n
\/\/ \u3053\u308c\u307e\u3067<\/span>\r\narray_fill<\/span>(<\/span>0<\/span>,<\/span> 100<\/span>,<\/span> 50<\/span>);<\/span>\r\n\/\/ \u540d\u524d\u4ed8\u304d\u5f15\u6570<\/span>\r\narray_fill<\/span>(<\/span>start_index<\/span>:<\/span> 0<\/span>,<\/span> num<\/span>:<\/span> 100<\/span>,<\/span> value<\/span>:<\/span> 50<\/span>);<\/span>\r\n\r\n\/\/ \u540c\u3058<\/span>\r\nhtmlspecialchars<\/span>(<\/span>$string<\/span>,<\/span> ENT_COMPAT<\/span> |<\/span> ENT_HTML401<\/span>,<\/span> 'UTF-8'<\/span>,<\/span> false<\/span>);<\/span>\r\nhtmlspecialchars<\/span>(<\/span>$string<\/span>,<\/span> double_encode<\/span>:<\/span> false<\/span>);<\/span>\r\n<\/code><\/pre>\n
\u8fd9\u4e2aPython\u7684\u4e1c\u897f\u548c\u5927\u81f4\u76f8\u540c\u3002<\/p>\n
\u5728\u53c2\u6570\u8f83\u591a\u7684\u51fd\u6570\u4e2d\uff0c\u5f53\u53ea\u60f3\u6307\u5b9a\u6700\u540e\u4e00\u4e2a\u53c2\u6570\u65f6\u975e\u5e38\u6709\u7528\u3002
\n\u6b64\u5916\uff0c\u4ee5\u524d\u65e0\u6cd5\u77e5\u9053\u53c2\u6570\u7684\u987a\u5e8f\u548c\u4ee3\u8868\u7684\u542b\u4e49\uff0c\u4f46\u901a\u8fc7\u4f7f\u7528\u53c2\u6570\u540d\u79f0\u6765\u5199\uff0c\u53ef\u4ee5\u4f7f\u5f97\u4ee3\u7801\u66f4\u6613\u8bfb\u3002<\/p>\n
\u5339\u914d\u8868\u8fbe\u5f0f v2\u4ee543\u7968\u8d5e\u6210\uff0c2\u7968\u53cd\u5bf9\uff0c\u8be5\u8bae\u6848\u88ab\u63a5\u53d7\u3002
\n\u8fd9\u662f\u4e00\u4e2a\u5339\u914d\u6a21\u5f0f\u3002<\/p>\n
echo<\/span> match<\/span> (<\/span>\"1\"<\/span>)<\/span> {<\/span>\r\n    true<\/span> =><\/span> 'Foo'<\/span>,<\/span>\r\n    1<\/span> =><\/span> 'Bar'<\/span>,<\/span>\r\n    \"1\"<\/span> =><\/span> 'Baz'<\/span>,<\/span>\r\n};<\/span> \/\/ Baz<\/span>\r\n<\/code><\/pre>\n
\u8fd9\u662f\u4e00\u79cd\u5f88\u597d\u7684\u8bed\u6cd5\u7ed3\u6784\uff0c\u51e0\u4e4e\u89e3\u51b3\u4e86\u73b0\u6709switch\u8bed\u53e5\u7684\u5927\u90e8\u5206\u7f3a\u70b9\uff0c\u4f8b\u5982\u4e25\u8c28\u7684\u6bd4\u8f83\u3001\u4e0d\u4f1a\u6f0f\u6389\u5206\u652f\u3001\u5177\u6709\u8fd4\u56de\u503c\u7684\u8868\u8fbe\u5f0f\u3002
\n\u76f8\u53cd\uff0c\u7531\u4e8e\u5206\u652f\u5185\u90e8\u53ea\u80fd\u5199\u4e00\u4e2a\u8868\u8fbe\u5f0f\uff0c\u6240\u4ee5\u65e0\u6cd5\u8fdb\u884c\u590d\u6742\u7684\u5904\u7406\u3002
\n\u9664\u975e\u5fc5\u987b\u4f7f\u7528switch\uff0c\u5426\u5219\u5c06\u6765\u4f7f\u7528match\u6765\u7f16\u5199\u4f1a\u66f4\u597d\u3002<\/p>\n
\u7a7a\u5b89\u5168\u8fd0\u7b97\u7b26\u572856\u4eba\u8d5e\u62102\u4eba\u53cd\u5bf9\u7684\u60c5\u51b5\u4e0b\uff0c\u88ab\u63a5\u53d7\u3002
\n\u6211\u662f\u96f6\u5b89\u5168\u64cd\u4f5c\u5458\u3002<\/p>\n
$country<\/span> =<\/span> $session<\/span>?-><\/span>user<\/span>?-><\/span>getAddress<\/span>()<\/span>?-><\/span>country<\/span>;<\/span>\r\n<\/code><\/pre>\n
\u53ef\u4ee5\u66f4\u5bb9\u6613\u5730\u7f16\u5199\u53ef\u80fd\u4e2d\u9014\u51fa\u73b0null\u7684\u65b9\u6cd5\u94fe\u3002
\n\u5f53\u9047\u5230?\u65f6\uff0c\u6267\u884c\u4f1a\u88ab\u4e2d\u65ad\uff0c\u5e76\u4e14\u4e4b\u540e\u7684\u4ee3\u7801\u90fd\u4e0d\u4f1a\u88ab\u6267\u884c\u3002<\/p>\n
\/\/ bar()\u3001baz()\u306f\u5b9f\u884c\u3055\u308c\u306a\u3044<\/span>\r\nnull<\/span>?-><\/span>foo<\/span>(<\/span>bar<\/span>())<\/span>-><\/span>baz<\/span>();<\/span>\r\n<\/code><\/pre>\n
\u8054\u5408\u7c7b\u578b v2\u4ee561\u7968\u8d5e\u6210\uff0c5\u7968\u53cd\u5bf9\u901a\u8fc7\u3002
\n\u8fd9\u662f\u4e00\u4e2aUNION\u7c7b\u578b\u7684RFC\u3002<\/p>\n
function<\/span> setNumber<\/span>(<\/span>int<\/span>|<\/span>float<\/span> $number<\/span>):<\/span> void<\/span> {<\/span>\r\n\t\/\/ $number\u306fint\u304bfloat<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u53ef\u4ee5\u63a5\u53d7\u6216\u8fd4\u56de\u591a\u79cd\u7c7b\u578b\uff0c\u4f46\u8fc7\u5ea6\u4f7f\u7528\u4f1a\u4f7f\u7c7b\u578b\u7cfb\u7edf\u5931\u53bb\u610f\u4e49\uff0c\u6240\u4ee5\u5efa\u8bae\u9002\u5ea6\u4f7f\u7528\u3002<\/p>\n
\u6df7\u5408\u7c7b\u578bv2\u4ee550\u7968\u8d5e\u6210\u300111\u7968\u53cd\u5bf9\u901a\u8fc7\u3002
\n\u662f\u4e00\u79cd\u63a5\u53d7\u4efb\u4f55\u4e8b\u7269\u7684\u7c7b\u578b\u3002<\/p>\n
 class<\/span> A<\/span>\r\n{<\/span>\r\n    public<\/span> function<\/span> foo<\/span>(<\/span>mixed<\/span> $value<\/span>):<\/span> mixed<\/span> {<\/span>\r\n    \treturn<\/span> $value<\/span>;<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u5982\u679c\u60f3\u8981\u63a5\u6536\u4efb\u4f55\u7c7b\u578b\u7684\u53c2\u6570\uff0c\u53ef\u4ee5\u4f7f\u7528\u5b83\u4f5c\u4e3a\u7c7b\u4f3c\u4e8evar_dump()\u7684\u51fd\u6570\u3002\u5728TypeScript\u4e2d\u88ab\u79f0\u4e3a”any”\u3002\u5728\u91cd\u6784\u65f6\u4f1a\u53d1\u6325\u4f5c\u7528\u3002\u57fa\u672c\u4e0a\uff0c\u6700\u597d\u4e0d\u8981\u5728\u65b0\u9879\u76ee\u4e2d\u4e3b\u52a8\u4f7f\u7528\u5b83\u3002<\/p>\n
\u7279\u6027 (\u7248\u672c2)
\n\u901a\u8fc751\u7968\u8d5e\u6210\uff0c1\u7968\u53cd\u5bf9\uff0c\u8fd9\u4e00\u63d0\u6848\u5f97\u5230\u4e86\u53d7\u7406\u3002
\n\u8fd9\u662f\u4e00\u4e2a\u5c5e\u6027\u3002<\/p>\n
\u901a\u8fc7 <<>> \u53ef\u4ee5\u5d4c\u5165\u5143\u6570\u636e\u3002<\/p>\n
<<<\/span>WithoutArgument<\/span>>><\/span>\r\n<<<\/span>SingleArgument<\/span>(<\/span>0<\/span>)<\/span>>><\/span>\r\n<<<\/span>FewArguments<\/span>(<\/span>'Hello'<\/span>,<\/span> 'World'<\/span>)<\/span>>><\/span>\r\nfunction<\/span> foo<\/span>()<\/span> {}<\/span>\r\n<\/code><\/pre>\n
\u5728\u8fc7\u53bb\uff0c\u53ea\u80fd\u901a\u8fc7\u6ce8\u91ca\u6765\u4e66\u5199PHPDoc\u6216PSR-5\uff0c\u5e76\u4e14\u7f3a\u4e4f\u5f3a\u5236\u529b\u3002
\n\u5c5e\u6027\u5c06\u6210\u4e3a\u4e00\u79cd\u4ee5PHP\u8bed\u6cd5\u5177\u6709\u5b9e\u9645\u6548\u529b\u7684\u65b9\u5f0f\u6765\u4e66\u5199\u5143\u6570\u636e\u3002<\/p>\n
\u5c5e\u6027\u4fee\u6539\u6709\u591a\u4e2a\u6295\u7968\uff0c\u4f46\u5168\u90e8\u90fd\u5df2\u88ab\u63a5\u53d7\u3002
\n\u8fd9\u662f\u5173\u4e8e\u5c5e\u6027\u8be6\u7ec6\u6dfb\u52a0\u89c4\u8303\u7684RFC\u3002<\/p>\n
\u8fd9\u4e2a\u89c4\u683c\u6dfb\u52a0\u5141\u8bb8\u5728\u9017\u53f7\u5206\u9694\u7684\u5f62\u5f0f\u4e0b\u5199\u5165\u591a\u4e2a\u5c5e\u6027\uff0c\u5c06\u4e4b\u524d\u540d\u4e3aPhpAttribute\u7684\u7c7b\u540d\u6539\u4e3aAttribute\u7b49\u3002\u597d\u50cf\u5e76\u6ca1\u6709\u5bf9\u5c5e\u6027\u672c\u8eab\u505a\u51fa\u5927\u7684\u53d8\u66f4\u3002<\/p>\n
\u7b80\u5316\u5c5e\u6027\u8bed\u6cd5\u8fd9\u662f\u5173\u4e8e\u5c5e\u6027\u8bed\u6cd5\u66f4\u6539\u7684RFC\u3002<\/p>\n
\u5728\u5c5e\u6027\u8bed\u6cd5\u4e2d\u5b58\u5728\u4e00\u4e9b\u95ee\u9898\u3002<\/p>\n
<<<\/span>Bar<\/span>(<\/span>2<\/span> *<\/span> (<\/span>3<\/span> +<\/span> 3<\/span>)<\/span>>><\/span>Baz<\/span>,<\/span> (<\/span>4<\/span> +<\/span> 5<\/span>)<\/span> *<\/span> 2<\/span>)<\/span>>><\/span>\r\n\r\n<<<\/span>JoinTable<\/span>(<\/span>\r\n    \"User_Group\"<\/span>,<\/span>\r\n    <<<\/span>JoinColumn<\/span>(<\/span>\"User_id\"<\/span>,<\/span> \"id\"<\/span>)<\/span>>><\/span>,<\/span>\r\n    <<<\/span>JoinColumn<\/span>(<\/span>\"Group_id\"<\/span>,<\/span> \"id\"<\/span>)<\/span>>><\/span>,<\/span>\r\n)<\/span>>><\/span>\r\n<\/code><\/pre>\n
\u5728\u5d4c\u5957\u4ee5\u53ca\u4e0e\u4f4d\u8fd0\u7b97\u7b26\u6df7\u5408\u4f7f\u7528\u65f6\u4f1a\u53d8\u5f97\u975e\u5e38\u96be\u61c2\uff0c\u800c\u4e14\u5c06\u6765\u5982\u679c\u5f15\u5165\u6cdb\u578b\u7684\u8bdd\u4f1a\u66f4\u52a0\u6df7\u4e71\u3002\u56e0\u6b64\uff0c\u5f15\u5165\u4e86\u66ff\u4ee3\u8bed\u6cd5@@\u30fb#[]\u30fb<<>> \u4e4b\u95f4\u7684\u4e89\u8bae\uff0c\u65e0\u8bba\u662f\u5728\u6295\u7968\u8fd8\u662f\u5728 Reddit \u4e0a\uff0c@@ \u90fd\u5f97\u5230\u4e86\u6700\u591a\u7684\u652f\u6301\u3002<\/p>\n
@@<\/span>JoinTable<\/span>(<\/span>\r\n    \"User_Group\"<\/span>,<\/span>\r\n    @@<\/span>JoinColumn<\/span>(<\/span>\"User_id\"<\/span>,<\/span> \"id\"<\/span>),<\/span>\r\n    @@<\/span>JoinColumn<\/span>(<\/span>\"Group_id\"<\/span>,<\/span> \"id\"<\/span>),<\/span>\r\n)<\/span>\r\n<\/code><\/pre>\n
\u5c3d\u7ba1\u5df2\u7ecf\u4f5c\u51fa\u4e86\u51b3\u5b9a\uff0c\u4f46\u7531\u4e8e\u8bed\u6cd5\u4e0a\u51fa\u73b0\u4e86\u5404\u79cd\u95ee\u9898\uff0c\u56e0\u6b64\u53c8\u63d0\u4ea4\u4e86\u8fdb\u4e00\u6b65\u7684RFC\u3002<\/p>\n
\u7b80\u5316\u5c5e\u6027\u8bed\u6cd5\u66f4\u6539\u4ee5\u4e0b\u662f\u7528\u4e2d\u56fd\u5927\u9646\u7684\u6c49\u8bed\u6765\u8868\u8ff0\u7684\u540c\u4e49\u53e5\uff1a<\/p>\n
@@\u8fd9\u662f\u4e3a\u4e86\u89e3\u51b3\u53e5\u6cd5\u95ee\u9898\u800c\u518d\u6b21\u8fdb\u884c\u7684\u5c5e\u6027\u53e5\u6cd5\u4fee\u6539\u7684RFC\u6587\u6863\u3002
\n\u8be5RFC\u6587\u6863\u5728\u7279\u6b8a\u60c5\u51b5\u4e0b\uff0c\u5728\u529f\u80fd\u51bb\u7ed3\u540e\u5f00\u59cb\u6295\u7968\uff0c\u5e76\u4e8e2020\u5e749\u67082\u65e5\u7ed3\u675f\u3002<\/p>\n
\u69cb\u6587\u7684\u53d8\u66f4\u672c\u8eab\u88ab\u63a5\u53d7\uff0c\u8d5e\u621050\u7968\uff0c\u53cd\u5bf911\u7968\u3002
\n\u5728\u4fee\u6539\u540e\u7684\u5c5e\u6027\u8bed\u6cd5\u4e2d\uff0c\u53ef\u4ece@@Attr\u3001#[Attr]\u3001@[Attr]\u3001<>\u3001@:Attr\u3001@{Attr}\u4e2d\u9009\u62e9\u3002
\n\u6295\u7968\u7ed3\u679c\u4e2d\uff0c#[Attr]\u83b7\u5f9732\u7968\uff0c\u4f4d\u5c45\u9996\u4f4d\u3002<\/p>\n
\u7ecf\u5386\u4e86\u4e00\u7cfb\u5217\u66f2\u6298\uff0c\u6700\u7ec8\u6211\u4eec\u51b3\u5b9a\u91c7\u7528\u4ee5\u4e0b\u7684\u7ed3\u6784\u3002<\/p>\n
#<\/span>[<\/span>\r\n  ORM\\Entity<\/span>,<\/span>\r\n  ORM\\Table<\/span>(<\/span>\"user\"<\/span>)<\/span>\r\n]<\/span>\r\nclass<\/span> User<\/span>\r\n{<\/span>\r\n    #[ORM\\Id, ORM\\Column(\"integer\"), ORM\\GeneratedValue]<\/span>\r\n    private<\/span> $id<\/span>;<\/span>\r\n \r\n    #[ORM\\Column(\"string\", ORM\\Column::UNIQUE)]<\/span>\r\n    #[Assert\\Email([\"message\" => \"The email '{{ value }}' is not a valid email.\"])]<\/span>\r\n    private<\/span> $email<\/span>;<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u91cd\u5206\u7c7b\u5f15\u64ce\u8b66\u544a54\u4eba\u8cdb\u6210\u30013\u4eba\u53cd\u5bfe\u306e\u7d50\u679c\u3001\u53ef\u6c7a\u3055\u308c\u307e\u3057\u305f\u3002
\n\u8b66\u6212\u30ec\u30d9\u30eb\u304c\u53b3\u3057\u304f\u306a\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n
\t$a<\/span> =<\/span> 1<\/span>;<\/span>\r\n\t$a<\/span>-><\/span>b<\/span>++<\/span>;<\/span>\r\n<\/code><\/pre>\n
\u5728PHP7\u4e2d\uff0c\u5373\u4f7f\u662f\u8fd9\u79cd\u96be\u4ee5\u7406\u89e3\u7684\u4ee3\u7801\uff0c\u4e5f\u53ea\u4f1a\u4ea7\u751fE_WARNING\u7ea7\u522b\u7684\u8b66\u544a\uff0c\u4f46\u662f\u4ee5\u540e\u5c06\u4f1a\u53d8\u6210ErrorException\u3002
\n\u5bf9\u4e8e\u4e0d\u6b63\u786e\u768420\u591a\u79cd\u683c\u5f0f\uff0c\u4e4b\u524d\u662fE_NOTICE\u7ea7\u522b\u7684\u8b66\u544a\u7684\u90e8\u5206\u5c06\u53d8\u6210E_WARNING\u7ea7\u522b\uff0c\u800c\u4e4b\u524d\u662fE_WARNING\u7ea7\u522b\u7684\u8b66\u544a\u7684\u90e8\u5206\u5c06\u53d8\u6210\u5f02\u5e38\uff0c\u53d8\u5f97\u66f4\u52a0\u4e25\u683c\u3002<\/p>\n
\u7b97\u672f\/\u4f4d\u8fd0\u7b97\u7b26\u7684\u7c7b\u578b\u68c0\u67e5\u66f4\u4e3a\u4e25\u683c
\n\u9019\u500bRFC\u7684\u63a5\u53d7\u7387\u662f57\u8d0a\u62100\u53cd\u5c0d\u3002
\n\u9019\u662f\u95dc\u65bc\u975e\u539f\u59cb\u503c\u7b97\u8853\u904b\u7b97\u7684RFC\u3002<\/p>\n
var_dump<\/span>(<\/span> []<\/span> %<\/span> [<\/span>42<\/span>]<\/span> );<\/span>\r\nvar_dump<\/span>(<\/span> new<\/span> stdClass<\/span> >><\/span> tmpfile<\/span>()<\/span> );<\/span>\r\n<\/code><\/pre>\n
\u8fd9\u662f\u4e00\u4e2a\u5b8c\u5168\u6ca1\u6709\u610f\u4e49\u7684\u8ba1\u7b97\uff0c\u4f46\u5728PHP7\u4e2d\u5b83\u81f3\u5c11\u53ef\u4ee5\u8fd0\u884c\u3002<\/p>\n
\u7136\u800c\uff0c\u5373\u4f7f\u8fd9\u6837\u7684\u4e8b\u60c5\u53d1\u751f\u4e86\uff0c\u4e5f\u6ca1\u6709\u4efb\u4f55\u7528\u5904\uff0c\u56e0\u6b64\u81ea PHP 8.0 \u7248\u672c\u5f00\u59cb\uff0c\u5bf9\u6570\u7ec4\u3001\u8d44\u6e90\u548c\u5bf9\u8c61\u8fdb\u884c\u7b97\u672f\u8fd0\u7b97\u90fd\u4f1a\u5bfc\u81f4\u7c7b\u578b\u9519\u8bef\u3002<\/p>\n
\u5982\u679c\u662f\u5bf9\u8c61\u7684\u60c5\u51b5\u4e0b\uff0c\u5177\u6709\u91cd\u8f7d\u64cd\u4f5c\u7b26\u7684\u4e00\u4e9b\u7c7b\uff08\u5982GMP\uff09\u4ecd\u7136\u53ef\u4ee5\u8fdb\u884c\u64cd\u4f5c\u3002
\n\u540c\u65f6\uff0c\u5bf9\u4e8e\u8bf8\u5982string\u548cint\u7b49\u539f\u59cb\u7c7b\u578b\uff0c\u672cRFC\u4e0d\u4f1a\u4ea7\u751f\u5f71\u54cd\u3002<\/p>\n
\u5167\u90e8\u51fd\u6578\u7684\u985e\u578b\u932f\u8aa4\u4e00\u76f4\u5b58\u5728\u3002\u901a\u8fc750\u7968\u8d5e\u6210\u30012\u7968\u53cd\u5bf9\uff0c\u8be5\u63d0\u6848\u88ab\u63a5\u53d7\u3002
\n\u8fd9\u662f\u5173\u4e8e\u5185\u90e8\u51fd\u6570\u7c7b\u578b\u53c2\u6570\u7684RFC\u3002<\/p>\n
function<\/span> foo<\/span>(<\/span>int<\/span> $bar<\/span>)<\/span> {}<\/span>\r\nfoo<\/span>(<\/span>\"not an int\"<\/span>);<\/span> \/\/ TypeError<\/span>\r\n\r\nstrlen<\/span>(<\/span>new<\/span> stdClass<\/span>);<\/span> \/\/ Warning: strlen() expects parameter 1 to be string, object given<\/span>\r\n\r\nvar_dump<\/span>(<\/span>DateTime<\/span>::<\/span>createFromFormat<\/span>(<\/span>new<\/span> stdClass<\/span>,<\/span> \"foobar\"<\/span>));<\/span>           \/\/ E_WARNING<\/span>\r\nvar_dump<\/span>(<\/span>DateTime<\/span>::<\/span>createFromFormat<\/span>(<\/span>\"foobar\"<\/span>,<\/span> \"foobar\"<\/span>,<\/span> new<\/span> stdClass<\/span>));<\/span> \/\/ TypeError<\/span>\r\n<\/code><\/pre>\n
\u5982\u679c\u4f20\u9012\u4e86\u9519\u8bef\u7c7b\u578b\u7684\u53c2\u6570\uff0c\u5219\u7528\u6237\u5b9a\u4e49\u7684\u51fd\u6570\u5c06\u59cb\u7ec8\u4f1a\u5f15\u53d1TypeError\u9519\u8bef\u3002\u800c\u5bf9\u4e8e\u5185\u90e8\u51fd\u6570\uff0c\u5219\u53ef\u80fd\u4f1a\u5f15\u53d1TypeError\u6216E_WARNING\u7c7b\u578b\u7684\u9519\u8bef\u3002<\/p>\n
\u8fd9\u4e0d\u597d\uff0c\u56e0\u6b64\u5c06\u5176\u7edf\u4e00\u4e3aTypeError\u3002<\/p>\n
\u56e0\u6b64\uff0c\u5982\u679c\u4f60\u7f16\u5199\u4e86\u6291\u5236\u4f20\u7edfE_WARNING\u7684\u4ee3\u7801\uff0c\u90a3\u4e48\u4f60\u5c06\u5728\u8fd9\u91cc\u9047\u5230\u56f0\u96be\u3002<\/p>\n
\u636e\u8bf4PHP\u672c\u4f53\u7684\u6d4b\u8bd5\u4ee3\u7801\u4e2d\uff0c\u5927\u7ea6\u67091500\u4e2a\u76f8\u5173\u4ee3\u7801\uff08\u6709\u610f\u4ea7\u751f\u9519\u8bef\u7684\u6d4b\u8bd5\u4ee3\u7801\uff09\u4f1a\u53d7\u5230\u8fd9\u4e2a\u53d8\u66f4\u7684\u5f71\u54cd\u3002<\/p>\n
\u66f4\u660e\u667a\u7684\u5b57\u7b26\u4e32\u81f3\u6570\u5b57\u6bd4\u8f83\u901a\u8fc744\u7968\u8d5e\u6210\u30011\u7968\u53cd\u5bf9\uff0c\u8be5\u63d0\u6848\u88ab\u63a5\u53d7\u3002
\n\u8fd9\u4e2aRFC\u65e8\u5728\u6539\u53d8\u975e\u4e25\u683c\u7684\u6bd4\u8f83\u8fd0\u7b97\u7b26==\u7684\u884c\u4e3a\u3002<\/p>\n
    \"true\"<\/span> ==<\/span> 0<\/span>;<\/span> \/\/ true  PHP7\u307e\u3067<\/span>\r\n    \"true\"<\/span> ==<\/span> 0<\/span>;<\/span> \/\/ false PHP8<\/span>\r\n<\/code><\/pre>\n
\u5982\u679c\u8981\u6bd4\u8f83\u6570\u5b57\u548c\u4e0d\u662f\u6570\u503c\u7c7b\u578b\u7684\u5b57\u7b26\u4e32\uff0c\u4ee5\u524d\u6211\u4eec\u4f1a\u5c06\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u6570\u5b57\u7136\u540e\u8fdb\u884c\u6bd4\u8f83\uff0c\u4f46\u4eca\u540e\u6211\u4eec\u5c06\u8f6c\u6362\u6570\u5b57\u4e3a\u5b57\u7b26\u4e32\u518d\u8fdb\u884c\u6bd4\u8f83\u3002\u5bf9\u4e8e\u6570\u5b57\u548c\u6570\u503c\u7c7b\u578b\u7684\u5b57\u7b26\u4e32\u7684\u6bd4\u8f83\uff0c\u4ee5\u53ca\u5176\u4ed6\u975e\u6570\u5b57\u7684\u6bd4\u8f83\uff0c\u4ecd\u7136\u91c7\u7528\u8fc7\u53bb\u7684\u65b9\u6cd5\u3002<\/p>\n
\u8fd9\u4e2a\u53d8\u66f4\u770b\u8d77\u6765\u975e\u5e38\u5371\u9669\uff0c\u4f46\u662f\u6211\u8ba4\u4e3a\u8fd9\u4e2a\u53d8\u66f4\u4e0d\u4f1a\u5bf9\u5177\u6709\u5f02\u5e38\u884c\u4e3a\u7684\u8d28\u91cf\u7a0b\u5e8f\u9020\u6210\u5b9e\u9645\u95ee\u9898\uff0c\u56e0\u4e3a\u5728\u8fd9\u4e2a\u53d8\u66f4\u4e4b\u524d\uff0c\u5b83\u4eec\u5f88\u53ef\u80fd\u5df2\u7ecf\u88abReclassifying engine warnings\u3001Consistent type errors for internal functions\u3001\u4ee5\u53caStricter type checks for arithmetic\/bitwise operators\u8fd9\u4e9b\u73af\u8282\u53d1\u73b0\u5e76\u4e0d\u80fd\u6b63\u5e38\u8fd0\u884c\u4e86\u3002\u6240\u4ee5\uff0c\u5b9e\u9645\u4e0a\u5e76\u6ca1\u6709\u4ec0\u4e48\u5b9e\u8d28\u6027\u7684\u5f71\u54cd\u3002<\/p>\n
\u66f4\u7b80\u6d01\u7684\u6570\u5b57\u5b57\u7b26\u4e32
\n\u8be5RFC\u88ab\u4ee530\u7968\u8d5e\u6210\u30014\u7968\u53cd\u5bf9\u7684\u7ed3\u679c\u901a\u8fc7\u3002
\n\u8fd9\u662f\u4e00\u4efd\u4fee\u6539\u6570\u5b57\u7c7b\u578b\u5b57\u7b26\u4e32\u5b9a\u4e49\u7684RFC\u3002<\/p>\n
\u5728PHP7\u4e4b\u524d\uff0c\u6570\u503c\u7c7b\u578b\u5b57\u7b26\u4e32\u6709\u591a\u79cd\u5b9a\u4e49\u65b9\u6cd5\u3002<\/p>\n
\u30fb\u6b63\u89c4\u7684\u6570\u5b57\u7c7b\u578b\u5b57\u7b26\u4e32\uff1a0\u4e2a\u6216\u591a\u4e2a\u7a7a\u683c+\u6570\u5b57
\n\u30fb\u975e\u89c4\u7684\u6570\u5b57\u7c7b\u578b\u5b57\u7b26\u4e32\uff1a\u6b63\u89c4\u7684\u6570\u5b57\u7c7b\u578b\u5b57\u7b26\u4e32+\u4efb\u610f\u7684\u5b57\u7b26\u4e32
\n\u30fb\u5176\u4ed6\u6240\u6709\u60c5\u51b5\u90fd\u4e0d\u662f\u6570\u5b57\u7c7b\u578b\u5b57\u7b26\u4e32\u3002<\/p>\n
function<\/span> foo<\/span>(<\/span>int<\/span> $i<\/span>)<\/span> {<\/span> var_dump<\/span>(<\/span>$i<\/span>);<\/span> }<\/span>\r\nfoo<\/span>(<\/span>\"123\"<\/span>);<\/span>    \/\/ int(123)<\/span>\r\nfoo<\/span>(<\/span>\"   123\"<\/span>);<\/span> \/\/ int(123)<\/span>\r\nfoo<\/span>(<\/span>\"123   \"<\/span>);<\/span> \/\/ int(123) with E_NOTICE \"A non well formed numeric value encountered\"<\/span>\r\nfoo<\/span>(<\/span>\"123abc\"<\/span>);<\/span> \/\/ int(123) with E_NOTICE \"A non well formed numeric value encountered\"<\/span>\r\nfoo<\/span>(<\/span>\"string\"<\/span>);<\/span> \/\/ TypeError<\/span>\r\n<\/code><\/pre>\n
\u56e0\u4e3a\u8fd9\u4e2a\u539f\u56e0\u5bfc\u81f4\u4e86\u8bb8\u591a\u9ebb\u70e6\u7684\u4e8b\u60c5\u3002
\n\u7279\u522b\u662f123\u548c123\u4e0d\u540c\u7684\u5730\u65b9\u8ba9\u4eba\u611f\u5230\u975e\u5e38\u4e0d\u81ea\u7136\u3002<\/p>\n
\u6240\u4ee5\uff0c\u5728PHP8\u4e2d\uff0c\u5c06\u5408\u5e76\u6570\u5b57\u7c7b\u578b\u548c\u5b57\u7b26\u4e32\u7c7b\u578b\u7684\u5b9a\u4e49\u3002<\/p>\n
– \u6570\u503c\u578b\u5b57\u7b26\u4e32\uff1a0\u4e2a\u6216\u591a\u4e2a\u7a7a\u683c+\u6570\u5b57+0\u4e2a\u6216\u591a\u4e2a\u7a7a\u683c
\n– \u5176\u4ed6\u60c5\u51b5\u5747\u4e0d\u5c5e\u4e8e\u6570\u503c\u578b\u5b57\u7b26\u4e32\u3002<\/p>\n
\u7531\u6b64\uff0c123\u548c123\u4f1a\u9010\u6e10\u53d8\u4e3a\u76f8\u540c\u7684\u503c\u3002
\n\u540c\u65f6\uff0c123abc\u5c06\u4e0d\u518d\u662f\u6570\u5b57\u7c7b\u578b\u5b57\u7b26\u4e32\u3002<\/p>\n
function<\/span> foo<\/span>(<\/span>int<\/span> $i<\/span>)<\/span> {<\/span> var_dump<\/span>(<\/span>$i<\/span>);<\/span> }<\/span>\r\nfoo<\/span>(<\/span>\"123\"<\/span>);<\/span>    \/\/ int(123)<\/span>\r\nfoo<\/span>(<\/span>\"   123\"<\/span>);<\/span> \/\/ int(123)<\/span>\r\nfoo<\/span>(<\/span>\"123   \"<\/span>);<\/span> \/\/ int(123)<\/span>\r\nfoo<\/span>(<\/span>\"123abc\"<\/span>);<\/span> \/\/ TypeError<\/span>\r\nfoo<\/span>(<\/span>\"string\"<\/span>);<\/span> \/\/ TypeError<\/span>\r\n<\/code><\/pre>\n
\u5766\u767d\u8bf4\uff0c\u76f8\u6bd4\u4e8eSaner\u7ed3\u6784\u4e0e\u6570\u5b57\u7684\u6bd4\u8f83\uff0c\u8fd9\u8fb9\u7684\u5f71\u54cd\u8303\u56f4\u8981\u5927\u5f97\u591a\u3002
\n\u5c3d\u7ba1\u4e0d\u518d\u662f\u6570\u503c\u578b\u5b57\u7b26\u4e32\uff0c\u4f46\u662f\u5982\u679c(int)”123abc”\u53d8\u62100\u7684\u8bdd\uff0c\u540e\u679c\u592a\u8fc7\u4e25\u91cd\u4e86\uff0c\u6240\u4ee5\u4f3c\u4e4e\u786e\u5b9e\u4f1a\u5c06\u5176\u6539\u4e3a123\u3002<\/p>\n
\u5c06\u5177\u6709\u547d\u540d\u7a7a\u95f4\u7684\u540d\u79f0\u89c6\u4e3a\u5355\u4e2a\u6807\u8bb0\u8fd9\u9879RFC\u5df2\u88ab38\u4eba\u8d5e\u6210\u30014\u4eba\u53cd\u5bf9\u901a\u8fc7\u3002
\n\u8fd9\u662f\u4e00\u9879\u5173\u4e8e\u66f4\u6539\u547d\u540d\u7a7a\u95f4\u89e3\u6790\u5668\u4ee4\u724c\u7684RFC\u3002<\/p>\n
\u5728\u8fc7\u53bb\uff0c\u547d\u540d\u7a7a\u95f4Foo\\Bar\u4f1a\u5728\u8bcd\u6cd5\u5206\u6790\u4e2d\u88ab\u5206\u89e3\u4e3aT_STRING\uff0cT_NS_SEPARATOR\uff0cT_STRING\uff0c\u800c\u73b0\u5728\u5c06\u88ab\u7edf\u4e00\u4e3aT_NAME_QUALIFIED\u3002<\/p>\n
\u4f5c\u4e3a\u4f7f\u7528PHP\u7684\u4e00\u65b9\uff0c\u9664\u4e86\u90a3\u4e9b\u4f7f\u7528token_get_all\u7684\u5f02\u5e38\u811a\u672c\u5916\uff0c\u4e0e\u8fd9\u5b8c\u5168\u65e0\u5173\u3002
\n\u7136\u800c\u60ca\u8bb6\u7684\u662f\uff0c\u5176\u4e2d\u8fd8\u63d0\u5230\u4e86\u7981\u6b62\u4f7f\u7528\u547d\u540d\u7a7a\u95f4\u7684\u7a7a\u767d\u3002
\n\u503c\u5f97\u4e00\u63d0\u7684\u662f\uff0c\u8fdd\u89c4\u811a\u672c\u53ea\u5728Composer\u7684\u524d2000\u4e2a\u8f6f\u4ef6\u5305\u4e2d\u76845\u4e2a\u5730\u65b9\u51fa\u73b0\u3002<\/p>\n
\u5728\u53c2\u6570\u5217\u8868\u4e2d\u5141\u8bb8\u4f7f\u7528\u5c3e\u9017\u53f7\u3002\u5728\u6295\u7968\u4e2d\uff0c\u670958\u4eba\u8d5e\u6210\uff0c1\u4eba\u53cd\u5bf9\uff0c\u8be5\u63d0\u6848\u88ab\u63a5\u53d7\u3002<\/p>\n
\u8fd9\u662f\u5173\u4e8e\u51fd\u6570\u53c2\u6570\u672b\u5c3e\u9017\u53f7\u7684RFC\u3002<\/p>\n
\u5728PHP\u4e2d\uff0c\u4ece\u4ee5\u524d\u5f00\u59cb\u5c31\u53ef\u4ee5\u5728\u6570\u7ec4\u4e2d\u4f7f\u7528\u6700\u540e\u4e00\u4e2a\u9017\u53f7\uff0c\u5728PHP 7.3\u4e4b\u540e\uff0c\u51fd\u6570\u8c03\u7528\u548c\u5927\u591a\u6570\u5217\u8868\u4e2d\u4e5f\u53ef\u4ee5\u4f7f\u7528\u672b\u5c3e\u9017\u53f7\u3002<\/p>\n
\u5c3d\u7ba1\u51fd\u6570\u8c03\u7528\u65b9\u5df2\u7ecf\u8fdb\u884c\u4e86\u76f8\u5e94\u7684\u5904\u7406\uff0c\u4f46\u662f\u51fd\u6570\u53c2\u6570\u5374\u4e0d\u77e5\u4f55\u6545\u6ca1\u6709\u8fdb\u884c\u76f8\u5e94\u7684\u5904\u7406\uff0c\u56e0\u6b64\u9700\u8981\u8fdb\u884c\u8865\u5145\u76f8\u5e94\u7684\u5904\u7406\u3002<\/p>\n
function<\/span> hoge<\/span>(<\/span>\r\n\t$foo<\/span>,<\/span>\r\n\t$bar<\/span>,<\/span> \/\/ PHP8.0\u4ee5\u964dOK<\/span>\r\n){}<\/span>\r\n\r\nhoge<\/span>(<\/span>1<\/span>,<\/span> 2<\/span>,<\/span> );<\/span> \/\/ PHP7.3\u4ee5\u964dOK<\/span>\r\n<\/code><\/pre>\n
\u5141\u8bb8\u5728\u95ed\u5305\u4f7f\u7528\u5217\u8868\u4e2d\u4f7f\u7528\u5c3e\u9017\u53f7\u4ee549\u7968\u8d5e\u6210\u30010\u7968\u53cd\u5bf9\u88ab\u63a5\u53d7\u3002
\n\u8fd9\u662f\u5728RFC\uff08\u8bf7\u6c42\u8bc4\u8bba\uff09\u4e2d\u7684\u672b\u5c3e\u9017\u53f7\u3002<\/p>\n
$longArgs_longVars<\/span> =<\/span> function<\/span> (<\/span>\r\n    $longArgument<\/span>,<\/span>\r\n    $longerArgument<\/span>,<\/span>\r\n    $muchLongerArgument<\/span>,<\/span> \/\/ \u2191\u306e\u5f15\u6570\u672b\u5c3e\u30ab\u30f3\u30de\u3067OK\u306b\u306a\u3063\u305f<\/span>\r\n)<\/span> use<\/span> (<\/span>\r\n    $longVar1<\/span>,<\/span>\r\n    $longerVar2<\/span>,<\/span>\r\n    $muchLongerVar3<\/span>,<\/span> \/\/ \u3053\u306eRFC<\/span>\r\n)<\/span> {<\/span>\r\n};<\/span>\r\n<\/code><\/pre>\n
\u7531\u4e8e\u65e0\u6cd5\u5728”use”\u7684\u672b\u5c3e\u653e\u7f6e\u9017\u53f7\uff0c\u56e0\u6b64\u8fdb\u884c\u4e86\u76f8\u5e94\u7684\u8865\u5145\u5904\u7406\u3002
\n\u901a\u8fc7\u8fd9\u4e2a\u7f3a\u5931\u7684\u8865\u5145\uff0c\u53ef\u80fd\u5b9e\u73b0\u4e86\u5728\u5217\u4e3e\u7684\u6240\u6709\u5730\u65b9\u90fd\u53ef\u4ee5\u4f7f\u7528\u672b\u5c3e\u9017\u53f7\u3002<\/p>\n
\u786e\u4fdd\u9b54\u6cd5\u65b9\u6cd5\u7684\u7b7e\u540d\u6b63\u786e\u3002
\n\u4ee545\u7968\u8d5e\u6210\u30012\u7968\u53cd\u5bf9\u88ab\u63a5\u53d7\u3002
\n\u8fd9\u662f\u5173\u4e8e\u9b54\u672f\u65b9\u6cd5\u53c2\u6570\u7684RFC\u3002<\/p>\n
\u5728\u9b54\u6cd5\u65b9\u6cd5\u4e2d\uff0c\u4ee5\u524d\u53ef\u4ee5\u5199\u5165\u4e0d\u6b63\u786e\u7684\u7c7b\u578b\u3002<\/p>\n
class<\/span> Foo<\/span> {<\/span>\r\n    public<\/span> function<\/span> __get<\/span>(<\/span>array<\/span> $name<\/span>):<\/span> void<\/span>{}<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u672a\u6765\u5c06\u4f1a\u7981\u6b62\u6b64\u4e3e\uff0c\u5e76\u53ea\u5141\u8bb8\u5199\u5165\u6b63\u786e\u683c\u5f0f\uff1b\u6216\u8005\u5e72\u8106\u4ec0\u4e48\u90fd\u4e0d\u5199\u3002<\/p>\n
class<\/span> Foo<\/span> {<\/span>\r\n    public<\/span> function<\/span> __get<\/span>(<\/span>string<\/span> $name<\/span>):<\/span> mixed<\/span>{}<\/span>\r\n    \/\/ \u2193\u3067\u3082OK<\/span>\r\n    public<\/span> function<\/span> __get<\/span>(<\/span>$name<\/span>){}<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u50cf\u5f80\u5e38\u4e00\u6837\uff0cNikita\u68c0\u67e5\u4e86Composer\u524d1000\u4e2a\u5305\uff0c\u53d1\u73b0\u53ea\u67097\u4e2a\u8fdd\u53cd\u811a\u672c\u89c4\u5219\u3002<\/p>\n
\u5728getTraceAsString()\u4e2d\u53ef\u914d\u7f6e\u7684\u5b57\u7b26\u4e32\u957f\u5ea6\u901a\u8fc736\u7968\u8d5e\u6210\u548c2\u7968\u53cd\u5bf9\u88ab\u63a5\u7eb3\u3002
\n\u8fd9\u662f\u4e00\u9879\u6539\u53d8\u4f8b\u5916\u5b57\u7b26\u4e32\u5c55\u5f00\u5b57\u7b26\u6570\u91cf\u7684RFC\u3002<\/p>\n
\u5728\u4f7f\u7528Throwable::getTraceAsString()\u7b49\u65b9\u6cd5\u5c06\u9519\u8bef\u5c55\u5f00\u4e3a\u5b57\u7b26\u4e32\u65f6\uff0c\u5806\u6808\u8ddf\u8e2a\u4e2d\u7684\u5b57\u7b26\u4e32\u4f1a\u88ab\u622a\u65ad\u4e3a15\u4e2a\u5b57\u8282\u3002
\n\u56e0\u6b64\uff0c\u5728\u9700\u8981\u8fdb\u884c\u6df1\u5165\u8c03\u67e5\u7b49\u60c5\u51b5\u4e0b\uff0c\u8fd9\u662f\u4e00\u4e2a\u56f0\u96be\u7684\u72b6\u6001\u3002<\/p>\n
\u56e0\u6b64\uff0c\u5728ini\u914d\u7f6e\u6587\u4ef6\u4e2d\u6dfb\u52a0zend.exception_string_param_max_len\u9009\u9879\uff0c\u5e76\u5141\u8bb8\u5c06\u8bbe\u7f6e\u7684\u5b57\u8282\u6570\u5c55\u5f00\u5230\u5806\u6808\u8ddf\u8e2a\u4e2d\u3002\u9ed8\u8ba4\u503c\u4e3a\u73b0\u6709\u503c15\u3002<\/p>\n
\u79fb\u9664\u79c1\u6709\u65b9\u6cd5\u4e0a\u7684\u4e0d\u6070\u5f53\u7ee7\u627f\u7b7e\u540d\u68c0\u67e5\u3002\u6839\u636e24\u4eba\u8d5e\u6210\u548c11\u4eba\u53cd\u5bf9\u7684\u7ed3\u679c\uff0c\u6b64RFC\u5df2\u88ab\u63a5\u53d7\u3002<\/p>\n
\u6b64RFC\u6d89\u53ca\u79c1\u6709\u65b9\u6cd5\u7684\u7ee7\u627f\u3002<\/p>\n
class<\/span> A<\/span> \r\n{<\/span> \r\n    final<\/span> private<\/span> function<\/span> finalPrivate<\/span>()<\/span> {<\/span>\r\n        echo<\/span> __METHOD__<\/span> .<\/span> PHP_EOL<\/span>;<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n \r\nclass<\/span> B<\/span> extends<\/span> A<\/span> \r\n{<\/span> \r\n    private<\/span> function<\/span> finalPrivate<\/span>()<\/span> {<\/span>\r\n        echo<\/span> __METHOD__<\/span> .<\/span> PHP_EOL<\/span>;<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u79c1\u6709\u65b9\u6cd5\u5e76\u4e0d\u4f1a\u88ab\u7ee7\u627f\uff0c\u4f46\u4ee5\u8fd9\u79cd\u65b9\u5f0f\u7f16\u5199\u4f1a\u5bfc\u81f4\u201c\u65e0\u6cd5\u8986\u76d6\u6700\u7ec8\u65b9\u6cd5\u201d\u81f4\u547d\u9519\u8bef\u3002
\n\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u7ee7\u627f\u65f6\u4f1a\u8fdb\u884c\u79c1\u6709\u65b9\u6cd5\u7684\u91cd\u5199\u68c0\u67e5\u3002<\/p>\n
\u56e0\u6b64\uff0cPHP 8.0\u53ca\u66f4\u9ad8\u7248\u672c\u4e0d\u4f1a\u5728\u7ee7\u627f\u65f6\u6267\u884c\u5bf9\u79c1\u6709\u65b9\u6cd5\u7684\u91cd\u5199\u68c0\u67e5\u3002<\/p>\n
\u9a8c\u8bc1\u62bd\u8c61\u7279\u5f81\u65b9\u6cd5
\n\u4ee5\u8cdb\u621052\u7968\u3001\u53cd\u5bfe0\u7968\u901a\u8fc7\u3002
\n\u8fd9\u662f\u5173\u4e8eTrait\u7684\u62bd\u8c61\u65b9\u6cd5\u884c\u4e3a\u7684RFC\uff08\u8bf7\u6c42\u8bc4\u8bba\uff09\u3002<\/p>\n
Note: I have used simplified Chinese characters for the translation. If you require traditional Chinese characters, please let me know.<\/p>\n
\u5982\u679c\u5728\u7279\u5f81\u4e2d\u5199\u4e86\u62bd\u8c61\u65b9\u6cd5\uff0c\u7ee7\u627f\u65f6\u7684\u89c4\u5219\u5c31\u4f1a\u51fa\u73b0\u95ee\u9898\u3002<\/p>\n
trait<\/span> MyTrait<\/span> {<\/span>\r\n    abstract<\/span> public<\/span> function<\/span> publicFunction<\/span>():<\/span> string<\/span>;<\/span>\r\n    abstract<\/span> private<\/span> function<\/span> privateFunction<\/span>():<\/span> string<\/span>;<\/span> \/\/ cannot be declared private<\/span>\r\n}<\/span>\r\n\r\nclass<\/span> TraitUser<\/span> {<\/span>\r\n    use<\/span> MyTrait<\/span>;<\/span>\r\n \r\n    \/\/ \u4f55\u6545\u304bOK<\/span>\r\n    public<\/span> function<\/span> publicFunction<\/span>():<\/span> stdClass<\/span> {<\/span> }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u6709\u65f6\u5019\u5373\u4f7f\u7b7e\u540d\u4e0d\u540c\u4e5f\u53ef\u4ee5\u901a\u8fc7\uff0c\u56e0\u6b64\u6211\u4eec\u4f1a\u50cf\u666e\u901a\u7684\u7c7b\u7ee7\u627f\u4e00\u6837\u5bf9\u5176\u8fdb\u884c\u4fee\u6b63\u3002
\n\u540c\u65f6\uff0c\u6211\u4eec\u8fd8\u53ef\u4ee5\u5b9a\u4e49\u62bd\u8c61\u79c1\u6709\u65b9\u6cd5\u3002<\/p>\n
trait<\/span> MyTrait<\/span> {<\/span>\r\n    abstract<\/span> private<\/span> function<\/span> neededByTheTrait<\/span>():<\/span> string<\/span>;<\/span>\r\n \r\n    public<\/span> function<\/span> doSomething<\/span>()<\/span> {<\/span>\r\n        return<\/span> strlen<\/span>(<\/span>$this<\/span>-><\/span>neededByTheTrait<\/span>());<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n \r\nclass<\/span> TraitUser<\/span> {<\/span>\r\n    use<\/span> MyTrait<\/span>;<\/span>\r\n \r\n    \/\/ OK<\/span>\r\n    private<\/span> function<\/span> neededByTheTrait<\/span>():<\/span> string<\/span> {<\/span> }<\/span>\r\n \r\n    \/\/ \u8fd4\u308a\u5024\u306e\u578b\u304c\u7570\u306a\u308b\u306e\u3067NG<\/span>\r\n    private<\/span> function<\/span> neededByTheTrait<\/span>():<\/span> stdClass<\/span> {<\/span> }<\/span>\r\n \r\n    \/\/ static\u3068nonstatic\u306a\u306e\u3067NG<\/span>\r\n    private<\/span> static<\/span> function<\/span> neededByTheTrait<\/span>():<\/span> string<\/span> {<\/span> }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u4f7f\u7528trait\u7684\u62bd\u8c61\u79c1\u6709\u65b9\u6cd5\u5728\u4f7f\u7528\u7c7b\u4e2d\u5fc5\u987b\u8fdb\u884c\u5b9e\u73b0\u3002\u867d\u7136\u4e0d\u592a\u613f\u610f\u5f3a\u5236\u8981\u6c42\u79c1\u6709\u65b9\u6cd5\u7684\u5b9e\u73b0\u3002<\/p>\n
\u4f7f\u6392\u5e8f\u53d8\u5f97\u7a33\u5b9a\u572824\u7968\u8d5e\u6210\u548c11\u7968\u53cd\u5bf9\u7684\u60c5\u51b5\u4e0b\uff0c\u88ab\u63a5\u53d7\u3002
\n\u8fd9\u662f\u4e00\u4e2a\u5c06\u6392\u5e8f\u53d8\u4e3a\u7a33\u5b9a\u6392\u5e8f\u7684RFC\u3002<\/p>\n
$array<\/span> =<\/span> [<\/span>\r\n    'c'<\/span> =><\/span> 1<\/span>,<\/span>\r\n    'd'<\/span> =><\/span> 1<\/span>,<\/span>\r\n    'a'<\/span> =><\/span> 0<\/span>,<\/span>\r\n    'b'<\/span> =><\/span> 0<\/span>,<\/span>\r\n];<\/span>\r\nasort<\/span>(<\/span>$array<\/span>);<\/span>\r\n<\/code><\/pre>\n
\u7531\u4e8e\u4ee5\u524d\u7684PHP\u6392\u5e8f\u662f\u4e0d\u7a33\u5b9a\u7684\uff0c\u6240\u4ee5\u65e0\u6cd5\u4fdd\u8bc1\u6392\u5e8f\u540ea\u548cb\u7684\u987a\u5e8f\uff0c\u4ee5\u53cac\u548cd\u7684\u987a\u5e8f\u3002
\n\u81eaPHP8.0\u5f00\u59cb\uff0c\u6392\u5e8f\u540e\u7684\u987a\u5e8f\u5c06\u4fdd\u8bc1\u4e3a[‘a’ => 0, ‘b’ => 0, ‘c’ => 1, ‘d’ => 1]\u3002<\/p>\n
\u6784\u9020\u51fd\u6570\u5c5e\u6027\u63a8\u5e7f
\n\u4ee546\u7968\u8d5e\u6210\uff0c10\u7968\u53cd\u5bf9\u901a\u8fc7\u3002
\n\u8fd9\u662f\u5bf9\u8c61\u521d\u59cb\u5316\u5668\u3002<\/p>\n
class<\/span> Point<\/span> {<\/span>\r\n    \/\/ \u30d7\u30ed\u30d1\u30c6\u30a3x,y,z\u304c\u751f\u3048\u308b<\/span>\r\n    public<\/span> function<\/span> __construct<\/span>(<\/span>\r\n        public<\/span> float<\/span> $x<\/span> =<\/span> 0.0<\/span>,<\/span>\r\n        public<\/span> float<\/span> $y<\/span> =<\/span> 0.0<\/span>,<\/span>\r\n        public<\/span> float<\/span> $z<\/span> =<\/span> 0.0<\/span>,<\/span>\r\n    )<\/span> {}<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u53ea\u9700\u8981\u5728\u6784\u9020\u51fd\u6570\u4e2d\u6307\u5b9a\u53c2\u6570\u53ef\u89c1\u6027\uff0c\u5c31\u4f1a\u81ea\u52a8\u5c06\u5176\u6ce8\u518c\u4e3a\u5c5e\u6027\u3002
\n\u4ee5\u524d\uff0c\u521d\u59cb\u5316\u5bf9\u8c61\u65f6\u9700\u8981\u5927\u91cf\u7684\u6a21\u677f\u4ee3\u7801\uff0c\u4f46\u662f\u73b0\u5728\u53ef\u4ee5\u66f4\u8f7b\u677e\u5730\u7f16\u5199\u3002<\/p>\n
\u59cb\u7ec8\u53ef\u7528\u7684JSON\u6269\u5c55\u4ee556\u7968\u8d5e\u6210\u30010\u7968\u53cd\u5bf9\u901a\u8fc7\u3002
\n\u8fd9\u662f\u4e00\u9879\u4f7fJSON\u59cb\u7ec8\u6709\u6548\u7684RFC\u3002<\/p>\n
\u4e8b\u5b9e\u4e0a\uff0c\u4ee5\u524d\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7–disable-json\u9009\u9879\u6765\u907f\u514d\u5b89\u88c5JSON\u6269\u5c55\uff0c\u4f46\u73b0\u5728\u65e0\u6cd5\u518d\u8fd9\u4e48\u505a\u4e86\u3002<\/p>\n
\u56e0\u4e3a\u5b83\u662f\u4e00\u4e2a\u751a\u81f3\u5728\u624b\u518c\u4e2d\u90fd\u6ca1\u6709\u63d0\u53ca\u7684\u9690\u85cf\u529f\u80fd\uff0c\u6240\u4ee5\u5373\u4f7f\u5b83\u6d88\u5931\u4e86\uff0c\u5b8c\u5168\u6ca1\u6709\u95ee\u9898\u3002<\/p>\n
\u62c6\u5206ext\/xmlrpc\u4ee550\u7968\u652f\u6301\u3001\u65e0\u53cd\u5bf9\u800c\u901a\u8fc7\u3002
\n\u8fd9\u662f\u4e00\u9879\u5c06\u79fb\u9664ext\/xmlrpc\u7684RFC\u3002<\/p>\n
\u7531\u4e8exmlrpc-epi\u5df2\u7ecf\u88ab\u653e\u5f03\uff0cxmlrpc\u5728\u5185\u90e8\u4e0d\u518d\u4f7f\u7528xmlrpc-epi\uff0c\u5e76\u5c06\u5176\u4ece\u652f\u6301\u4e2d\u79fb\u9664\u3002\u8fd9\u610f\u5473\u7740xmlrpc_xxx\u51fd\u6570\u5c06\u65e0\u6cd5\u4f7f\u7528\u3002<\/p>\n
\u7531\u4e8e\u8fd9\u4e2a\u6a21\u5757\u4e00\u76f4\u88ab\u544a\u77e5\u662f\u5b9e\u9a8c\u6027\u7684\uff0c\u6240\u4ee5\u53d7\u5230\u5f71\u54cd\u7684\u4eba\u5c06\u975e\u5e38\u5c11\u3002<\/p>\n
\u975e\u6355\u6349\u6355\u83b7\u4ee548\u7968\u8d5e\u6210\u30011\u7968\u53cd\u5bf9\u901a\u8fc7\u3002
\n\u8be5RFC\u4e0d\u63a5\u53d7\u4efb\u4f55\u4f8b\u5916\u3002<\/p>\n
try<\/span> {<\/span>\r\n    changeImportantData<\/span>();<\/span>\r\n}<\/span> catch<\/span> (<\/span>PermissionException<\/span>)<\/span> {<\/span>\r\n    echo<\/span> \"You don't have permission to do this\"<\/span>;<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u5982\u679c\u4e0d\u4f7f\u7528\u6355\u83b7\u7684\u5f02\u5e38\uff0c\u60a8\u53ef\u4ee5\u4ece\u4e00\u5f00\u59cb\u5c31\u4e0d\u63a5\u6536\u5b83\u3002\u8fd9\u7edd\u4e0d\u662f\u7528\u4e8e\u538b\u5236\u5f02\u5e38\u7684\u529f\u80fd\u3002<\/p>\n
\u5c06\u4e0d\u53d7\u533a\u57df\u9650\u5236\u7684\u6d6e\u70b9\u6570\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u300242\u4eba\u540c\u610f\uff0c1\u4eba\u53cd\u5bf9\uff0c\u901a\u8fc7\u3002
\n\u8fd9\u662f\u5173\u4e8e\u5728\u67d0\u4e9b\u7f16\u7a0b\u8bed\u8a00\u4e2d\u8fdb\u884c(string)\u8f6c\u6362\u7684RFC\u3002<\/p>\n
\u5982\u679c\u5c06\u8bed\u8a00\u73af\u5883\u8bbe\u7f6e\u4e3a\u6cd5\u8bed\uff0c\u5b57\u7b26\u4e32”3.14″\u5c06\u53d8\u6210”3,14″\uff0c\u56e0\u4e3a\u5728\u6cd5\u8bed\u4e2d\u4f7f\u7528\u9017\u53f7\u4f5c\u4e3a\u5c0f\u6570\u70b9\u3002<\/p>\n
setlocale<\/span>(<\/span>LC_ALL<\/span>,<\/span> \"de_DE\"<\/span>);<\/span>\r\n\r\n$f<\/span> =<\/span> 3.14<\/span>;<\/span>        \/\/ float(3,14)<\/span>\r\n$s<\/span> =<\/span> (<\/span>string<\/span>)<\/span> $f<\/span>;<\/span> \/\/ string(4) \"3,14\"<\/span>\r\n$f<\/span> =<\/span> (<\/span>float<\/span>)<\/span> $s<\/span>;<\/span>  \/\/ float(3)<\/span>\r\n<\/code><\/pre>\n
\u7136\u800c\uff0c\u65e0\u6cd5\u5c06\u201c3.14\u201d\u8f6c\u5316\u4e3a\u5c0f\u6570\uff0c\u800c\u662f\u6210\u4e3a3\u3002
\n\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u77db\u76fe\uff0c\u800c\u4e14\u7531\u4e8e\u5728\u5b57\u7b26\u4e32\u8868\u8fbe\u4e0d\u540c\u4e4b\u65f6\u53d8\u5f97\u96be\u4ee5\u7406\u89e3\uff0c\u6211\u4eec\u51b3\u5b9a\u65e0\u8bba\u5730\u533a\u5982\u4f55\uff0cstring\u8f6c\u6362\u59cb\u7ec8\u4e3a\u201c3.14\u201d\u3002<\/p>\n
\u4e2d\u6587\u548c\u65e5\u8bed\u7b49\u8bed\u8a00\u4e2d\u7684\u5c0f\u6570\u70b9\u70b9”.”\u5728\u672c\u5730\u73af\u5883\u4e2d\u6ca1\u6709\u4efb\u4f55\u5f71\u54cd\u3002<\/p>\n
\u4fee\u6539\u9ed8\u8ba4\u7684PDO\u9519\u8bef\u6a21\u5f0f\u4ee549\u7968\u8d5e\u6210\u30012\u7968\u53cd\u5bf9\u901a\u8fc7\u3002
\n\u8fd9\u662f\u5173\u4e8ePDO\u9ed8\u8ba4\u9519\u8bef\u6a21\u5f0f\u7684RFC\u3002<\/p>\n
\u5728PHP7\u4e4b\u524d\uff0cPDO::ATTR_ERRMODE\u9ed8\u8ba4\u7684\u8bbe\u7f6e\u662fPDO::ERRMODE_SILENT\u3002\u8fd9\u610f\u5473\u7740\u5373\u4f7f\u51fa\u73b0\u9519\u8bef\uff0c\u4e5f\u4e0d\u4f1a\u6709\u4efb\u4f55\u63d0\u793a\uff0c\u56e0\u6b64\u8fd9\u4e2a\u8bbe\u7f6e\u975e\u5e38\u4e0d\u7406\u60f3\u3002<\/p>\n
\u4ecePHP8.0\u5f00\u59cb\uff0c\u9ed8\u8ba4\u60c5\u51b5\u4e0bPDO::ERRMODE_EXCEPTION\u88ab\u8bbe\u7f6e\u4e3a\u9ed8\u8ba4\u6a21\u5f0f\u3002
\n\u592a\u597d\u4e86\u3002<\/p>\n
\u5c06 str_starts_with \u548c str_ends_with \u6dfb\u52a0\u5230 PHP\u3002\u4ee551\u7968\u8d5e\u6210\u548c4\u7968\u53cd\u5bf9\u7684\u7ed3\u679c\u901a\u8fc7\u3002
\n\u8fd9\u4e2a\u7ed3\u679c\u4ee5\u5f00\u59cb\u4e3astartsWith\u5e76\u4ee5\u7ed3\u675f\u4e3aendsWith\u3002<\/p>\n
echo<\/span> str_starts_with<\/span> (<\/span> 'abcdef'<\/span> ,<\/span> 'abc'<\/span> );<\/span>\r\necho<\/span> str_ends_with<\/span> (<\/span> 'abcdef'<\/span> ,<\/span> 'def'<\/span> );<\/span>\r\n<\/code><\/pre>\n
\u5728\u7528\u6237\u754c\u9762\u4e0a\u770b\u8d77\u6765\u5f88\u5bb9\u6613\u5b9e\u73b0\uff0c\u4f46\u5b9e\u9645\u4e0a\u8fd9\u4e2a\u51fd\u6570\u7684\u5b9e\u73b0\u6709\u5f88\u591a\u9677\u9631\uff0c\u5982\u679c\u5199\u5f97\u4e0d\u597d\uff0c\u5f88\u5feb\u5c31\u4f1a\u53d8\u5f97\u4f4e\u6548\u3002
\n\u5982\u679c\u8bed\u8a00\u672c\u8eab\u80fd\u591f\u63d0\u4f9b\u8fd9\u6837\u7684\u529f\u80fd\uff0c\u90a3\u5f53\u7136\u6700\u597d\u4e0d\u8fc7\u4e86\u3002<\/p>\n
\u5b57\u7b26\u4e32\u5305\u542b43\u4eba\u540c\u610f\uff0c9\u4eba\u53cd\u5bf9\uff0c\u901a\u8fc7\u3002
\n\u5305\u542b\u5b57\u7b26\u4e32\u3002<\/p>\n
str_contains<\/span>(<\/span>'\u653e\u8ab2\u5f8c\u30a2\u30c8\u30ea\u30a8\u3068\u3044\u308d'<\/span>,<\/span> '\u653e\u8ab2\u5f8c'<\/span>);<\/span> \/\/ true<\/span>\r\n<\/code><\/pre>\n
\u4e3a\u4ec0\u4e48\u76f4\u5230\u73b0\u5728\uff0c\u6211\u4eec\u4e00\u76f4\u5f3a\u5236\u4f7f\u7528\u795e\u79d8\u7684\u683c\u5f0fstrpos($haystack, $needle)!==false\u6765\u8868\u793a”\u5305\u542bXX”\uff0c\u4f46\u73b0\u5728\u7ec8\u4e8e\u53ef\u4ee5\u4ee5\u7b80\u6d01\u7684\u65b9\u5f0f\u8868\u8fbe\u4e86\u3002<\/p>\n
\u7531\u4e8e\u5b9e\u73b0\u4e86str_contains\u548cstr_starts_with\/str_ends_with\u51fd\u6570\uff0c\u53ef\u4ee5\u8bf4PHP\u7684\u6587\u672c\u5904\u7406\u51fd\u6570\u5df2\u7ecf\u9f50\u5168\u4e86\u3002<\/p>\n
\u6295\u63b7\u8868\u60c5
\n46\u4eba\u8d5e\u6210\uff0c3\u4eba\u53cd\u5bf9\uff0c\u901a\u8fc7\u3002throw\u8bed\u53e5\u5c06\u53d8\u4e3athrow\u8868\u8fbe\u5f0f\u3002<\/p>\n
\/\/ PHP7<\/span>\r\nif<\/span>(<\/span>!<\/span>$nullableValue<\/span>){<\/span>\r\n\tthrow<\/span> new<\/span> InvalidArgumentException<\/span>();<\/span>\r\n}<\/span>\r\n$value<\/span> =<\/span> $nullableValue<\/span>;<\/span>\r\n\r\n\/\/ \u6982\u306d\u540c\u3058<\/span>\r\n$value<\/span> =<\/span> $nullableValue<\/span> ??<\/span> throw<\/span> new<\/span> InvalidArgumentException<\/span>();<\/span>\r\n<\/code><\/pre>\n
\u7531\u4e8ethrow\u5728\u8fc7\u53bb\u4e00\u76f4\u662f\u4f5c\u4e3a\u53e5\u5b50\u5b58\u5728\u7684\uff0c\u6240\u4ee5\u65e0\u6cd5\u5305\u542b\u5728\u8868\u8fbe\u5f0f\u4e4b\u95f4\u3002
\n\u672a\u6765\u5c06\u80fd\u591f\u66f4\u8f7b\u677e\u5730\u8fdb\u884cthrow\u3002<\/p>\n
\u9762\u5411\u5bf9\u8c61\u7684token_get_all()\u7684\u66ff\u4ee3\u65b9\u6848\u63d0\u6848\u8005\u83b7\u5f97\u4e8647\u7968\u8d5e\u6210\u548c0\u7968\u53cd\u5bf9\uff0c\u8be5\u63d0\u6848\u88ab\u63a5\u53d7\u3002
\n\u8fd9\u662f\u6709\u5173token_get_all\u66ff\u4ee3\u8bed\u6cd5\u7684\u8bf7\u6c42\u8bc4\u8bba\u3002<\/p>\n
token_get_all\u51fd\u6570\u8fd4\u56de\u7684\u662f\u89e3\u6790\u7ed3\u679c\u7684\u6570\u7ec4\u3002<\/p>\n
\u8fd9\u4e2aRFC\u5f15\u5165\u4e86\u65b0\u7684PhpToken\u7c7b\uff0c\u5e76\u5c06\u89e3\u6790\u7ed3\u679c\u4ee5\u5bf9\u8c61\u5f62\u5f0f\u63a5\u6536\u3002\u8fd9\u6837\u4e00\u6765\uff0c\u4ee3\u7801\u53d8\u5f97\u66f4\u6613\u8bfb\uff0c\u540c\u65f6\u4e5f\u51cf\u5c11\u4e86\u5185\u5b58\u6d88\u8017\u3002<\/p>\n
\u4e3a\u4e86\u517c\u5bb9\u6027\uff0c\u4fdd\u6301\u73b0\u6709\u7684token_get_all\u4e0d\u53d8\u3002<\/p>\n
Stringable (\u53ef\u8f49\u63db\u70ba\u5b57\u7b26\u4e32\u7684)\u572829\u4eba\u8d5e\u6210\u548c9\u4eba\u53cd\u5bf9\u7684\u60c5\u51b5\u4e0b\u901a\u8fc7\u3002
\n\u8fd9\u662f\u5173\u4e8eStringable\u63a5\u53e3\u7684RFC\u3002<\/p>\n
\u5b9e\u73b0Countable\u63a5\u53e3\u53ef\u4ee5\u4f7f\u5bf9\u8c61\u53ef\u8ba1\u6570\uff0c\u5b9e\u73b0Traversable\u63a5\u53e3\u53ef\u4ee5\u4f7f\u5bf9\u8c61\u53ef\u904d\u5386\u3002<\/p>\n
\u8fd9\u662f\u4e00\u4e2a\u63d0\u6848\uff0c\u65e8\u5728\u5b9e\u73b0\u4e00\u4e2a\u540d\u4e3aStringable\u7684\u63a5\u53e3\uff0c\u4ee5\u4fbf\u80fd\u591f\u7c7b\u4f3c\u5730\u4f7f\u7528__toString()\u51fd\u6570\u3002<\/p>\n
interface<\/span> Stringable<\/span>\r\n{<\/span>\r\n   public<\/span> function<\/span> __toString<\/span>():<\/span> string<\/span>;<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u56e0\u4e3a\u5f3a\u884c\u6267\u884c\u8fd9\u4e2a\u64cd\u4f5c\u4f1a\u5bfc\u81f4\u6240\u6709\u5b9e\u73b0\u90fd\u574f\u6389\uff0c\u6240\u4ee5\u5b9e\u73b0\u4e86__toString\u65b9\u6cd5\u7684\u7c7b\u4f1a\u9690\u5f0f\u5730\u5b9e\u73b0Stringable\u63a5\u53e3\u3002
\n\u56e0\u6b64\uff0c\u4f5c\u4e3a\u4f7f\u7528\u8005\uff0c\u4f60\u4e0d\u9700\u8981\u7279\u522b\u62c5\u5fc3\u3002<\/p>\n
\u8fd9\u662f\u7c7b\u4f3c\u4e8e\u6807\u8bb0\u63a5\u53e3\u7684\u4e1c\u897f\uff0c\u7528\u4e8e\u5728\u5e93\u4e2d\u63a5\u53d7string|Stringable\u65f6\u3002
\n\u5b9e\u9645\u7528\u4f8b\u53ef\u4ee5\u5728Symfony\u4e2d\u627e\u5230\u3002<\/p>\n
\u5141\u8bb8\u5728\u5bf9\u8c61\u4e0a\u4f7f\u7528 ::class\u4ee560\u7968\u8d5e\u6210\u30010\u7968\u53cd\u5bf9\u901a\u8fc7\u3002
\n\u8fd9\u662f\u83b7\u53d6\u8bfe\u7a0b\u540d\u79f0\u7684RFC\u3002<\/p>\n
\u5728PHP\u4e2d\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528stdClass::class\u6765\u83b7\u53d6\u7c7b\u540d”stdClass”\uff0c\u4f46\u662f\u4e00\u65e6\u5bf9\u5176\u8fdb\u884c\u5bf9\u8c61\u5316\uff0c\u5c31\u65e0\u6cd5\u4f7f\u7528::class\u6765\u83b7\u53d6\u7c7b\u540d\u4e86\u3002
\n\u60a8\u9700\u8981\u4f7f\u7528get_class\u51fd\u6570\u6765\u8fbe\u5230\u76ee\u7684\u3002<\/p>\n
\u5728PHP8\u4e2d\uff0c\u53ef\u4ee5\u5199\u6210$object::class\u3002<\/p>\n
\techo<\/span> stdClass<\/span>::<\/span>class<\/span>;<\/span> \/\/ class<\/span>\r\n\techo<\/span> (<\/span>new<\/span> stdClass<\/span>)<\/span>::<\/span>class<\/span>;<\/span> \/\/ PHP8.0\u4ee5\u964dOK<\/span>\r\n<\/code><\/pre>\n
\u9759\u6001\u8fd4\u56de\u7c7b\u578b54\u7968\u8d5e\u6210\uff0c0\u7968\u53cd\u5bf9\uff0c\u901a\u8fc7\u63a5\u53d7\u3002
\n\u6b64RFC\u7684\u76ee\u7684\u662f\u5141\u8bb8\u5728\u8fd4\u56de\u503c\u4e2d\u4f7f\u7528static\u3002<\/p>\n
Note: RFC\uff08Request for Comments\uff09\u662f\u6307Internet Engineering Task Force\uff08IETF\uff09\u7684\u6587\u4ef6\uff0c\u7528\u4e8e\u63cf\u8ff0Internet\u534f\u8bae\u3001\u4f20\u8f93\u673a\u5236\u7b49\u7684\u89c4\u8303\u3002<\/p>\n
\u5728PHP7\u4e2d\uff0c\u53ef\u4ee5\u4f5c\u4e3a\u8fd4\u56de\u503c\u5199\u5165parent\u6216self\u3002<\/p>\n
<?php<\/span>\r\n\r\nclass<\/span> FUGA<\/span>{}<\/span>\r\n\r\nclass<\/span> HOGE<\/span> extends<\/span> FUGA<\/span>{<\/span>\r\n    public<\/span> function<\/span> a<\/span>():<\/span> parent<\/span>{<\/span>\r\n        return<\/span> new<\/span> parent<\/span>();<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n\r\n(<\/span>new<\/span> HOGE<\/span>())<\/span>-><\/span>a<\/span>();<\/span> \/\/ FUGA\u306b\u306a\u308b<\/span>\r\n<\/code><\/pre>\n
\u8ba9\u6211\u4eec\u4e5f\u80fd\u5199static\u3002\u8fd9\u662f\u5ef6\u8fdf\u9759\u6001\u7ed1\u5b9a\u4e2d\u7684static\u3002<\/p>\n
\/\/ PHP7\u307e\u3067syntax error<\/span>\r\nclass<\/span> Test<\/span> {<\/span>\r\n    public<\/span> function<\/span> createFromWhatever<\/span>(<\/span>$whatever<\/span>):<\/span> static<\/span> {<\/span>\r\n        return<\/span> new<\/span> static<\/span>(<\/span>$whatever<\/span>);<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u5c31\u6211\u4e2a\u4eba\u800c\u8a00\uff0c\u6211\u4ece\u672a\u4f7f\u7528\u8fc7\u5ef6\u8fdf\u9759\u6001\u7ed1\u5b9a\uff0c\u6240\u4ee5\u6211\u771f\u7684\u4e0d\u77e5\u9053\u5b83\u6709\u4ec0\u4e48\u597d\u5904\u3002<\/p>\n
\u53d8\u91cf\u8bed\u6cd5\u8c03\u6574
\n\u4ee547:0\u7684\u652f\u6301, \u88ab\u63a5\u53d7\u3002
\n\u662f\u5173\u4e8e\u53d8\u91cf\u8bed\u6cd5\u7684RFC\u3002<\/p>\n
\u5728PHP7.0\u4e2d\uff0c\u5bf9\u53d8\u91cf\u8bed\u6cd5\u8fdb\u884c\u4e86\u5927\u89c4\u6a21\u6539\u8fdb\uff0c\u4f46\u662f\u4e00\u4e9b\u88ab\u5ffd\u89c6\u7684\u8bed\u6cd5\u5728\u6b64\u6b21\u6539\u8fdb\u4e2d\u4e5f\u5f97\u5230\u4e86\u76f8\u5e94\u7684\u652f\u6301\u3002\u5c3d\u7ba1\u88ab\u5ffd\u89c6\u4e86\uff0c\u4f46\u8fd9\u4e9b\u53d8\u5316\u975e\u5e38\u7ec6\u5fae\u4ee5\u81f3\u4e8e\u6211\u4eec\u53ef\u80fd\u90fd\u6ca1\u6709\u5bdf\u89c9\u5230\u3002\u53e6\u5916\uff0c\u8fd9\u6b21\u6539\u52a8\u4f7f\u5f97\u4e4b\u524d\u4f1a\u4ea7\u751f\u8bed\u6cd5\u9519\u8bef\u7684\u8bed\u6cd5\u4e5f\u53d8\u5f97\u6709\u6548\uff0c\u56e0\u6b64\u6ca1\u6709\u4e0d\u517c\u5bb9\u7684\u53d8\u66f4\u3002<\/p>\n
$bar<\/span>  =<\/span> \"bar\"<\/span>;<\/span>\r\necho<\/span> \"foobar\"<\/span>[<\/span>0<\/span>];<\/span>  \/\/ OK<\/span>\r\necho<\/span> \"foo<\/span>$bar<\/span>\"<\/span>[<\/span>0<\/span>];<\/span> \/\/ PHP7\u307e\u3067syntax error\u30018\u304b\u3089OK<\/span>\r\n\r\necho<\/span> __FILE__<\/span>[<\/span>0<\/span>];<\/span> \/\/ PHP7\u307e\u3067syntax error\u30018\u304b\u3089OK<\/span>\r\n<\/code><\/pre>\n
DOM\u7684\u751f\u6d3b\u6807\u51c6API\u4ee537\u7968\u8d5e\u6210\u30010\u7968\u53cd\u5bf9\u901a\u8fc7\u3002
\n\u8fd9\u662f\u5173\u4e8eDOM\u66f4\u65b0\u7684RFC\u3002<\/p>\n
PHP\u7684DOM\u662f\u6839\u636eW3C Group\u5728\u5f88\u4e45\u4ee5\u524d\u5236\u5b9a\u7684DOM Level 3\u6807\u51c6\u5f00\u53d1\u7684\u3002
\n\u4e4b\u540eDOM\u88ab\u7eb3\u5165Living Standard\uff0c\u7531WHATWG\u8fdb\u884c\u7ba1\u7406\u3002
\n\u7531\u4e8e\u5bf9\u5176\u8fdb\u884c\u4e86\u4e0d\u5c11\u6539\u8fdb\uff0c\u6240\u4ee5\u6211\u4eec\u4f1a\u5f15\u5165\u8fd9\u4e9b\u53d8\u5316\u3002<\/p>\n
\u55ef\uff0c\u56e0\u4e3a\u64cd\u4f5cDOM\u5f88\u9ebb\u70e6\uff0c\u6240\u4ee5\u6211\u5e76\u4e0d\u7ecf\u5e38\u4f7f\u7528\u5b83\u3002<\/p>\n
\u59cb\u7ec8\u4e3a\u4e0d\u517c\u5bb9\u7684\u65b9\u6cd5\u7b7e\u540d\u751f\u6210\u81f4\u547d\u9519\u8bef\u300239\u4eba\u8d5e\u6210\uff0c3\u4eba\u53cd\u5bf9\u901a\u8fc7\u3002
\n\u8fd9\u662f\u5173\u4e8e\u65b9\u6cd5\u7b7e\u540d\u7684RFC\u3002<\/p>\n
\u5982\u679c\u5728\u7ee7\u627f\u65f6\u8fdd\u53cd\u4e86LSP\u539f\u5219\u7684\u7f16\u5199\u65b9\u5f0f\uff0c\u90a3\u4e48\u5728PHP7\u4e2d\u5c06\u53d8\u5f97\u81f4\u547d\u9519\u8bef\u6216E_WARNING\u7684\u5176\u4e2d\u4e00\u79cd\u3002<\/p>\n
\/\/ \u3053\u3063\u3061\u306f\u81f4\u547d\u7684\u30a8\u30e9\u30fc<\/span>\r\ninterface<\/span> I<\/span> {<\/span>\r\n    public<\/span> function<\/span> method<\/span>(<\/span>array<\/span> $a<\/span>);<\/span>\r\n}<\/span>\r\nclass<\/span> C<\/span> implements<\/span> I<\/span> {<\/span>\r\n    public<\/span> function<\/span> method<\/span>(<\/span>int<\/span> $a<\/span>)<\/span> {}<\/span>\r\n}<\/span>\r\n\r\n\/\/ \u3053\u3063\u3061\u306fE_WARNING<\/span>\r\nclass<\/span> C1<\/span> {<\/span>\r\n    public<\/span> function<\/span> method<\/span>(<\/span>array<\/span> $a<\/span>)<\/span> {}<\/span>\r\n}<\/span>\r\nclass<\/span> C2<\/span> extends<\/span> C1<\/span> {<\/span>\r\n    public<\/span> function<\/span> method<\/span>(<\/span>int<\/span> $a<\/span>)<\/span> {}<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u5c06\u6b64\u9519\u8bef\u7edf\u4e00\u4e3a\u6240\u6709\u60c5\u51b5\u4e0b\u7684\u81f4\u547d\u9519\u8bef\u3002<\/p>\n
\u4e3a\u4ec0\u4e48\u8fd9\u4e2a\u95ee\u9898\u76f4\u5230\u73b0\u5728\u624d\u53d8\u6210\u81f4\u547d\u9519\u8bef\u7684\u6848\u4f8b?<\/p>\n
\u4ee5\u8d1f\u7d22\u5f15\u5f00\u59cb\u7684\u6570\u7ec4\u4ee517\u7968\u8d5e\u6210\uff0c2\u7968\u53cd\u5bf9\u88ab\u63a5\u53d7\u3002
\n\u8d1f\u6570\u4f5c\u4e3a\u6570\u7ec4\u7684\u7d22\u5f15\u53ef\u4ee5\u88ab\u4f7f\u7528\u3002<\/p>\n
$arr<\/span> =<\/span> [<\/span>\r\n\t-<\/span>10<\/span> =><\/span> 'a'<\/span>\r\n];<\/span>\r\n$arr<\/span>[]<\/span> =<\/span> 'b'<\/span>;<\/span> \/\/ PHP7.4\u307e\u30670\u3001PHP8\u304b\u3089-9<\/span>\r\n<\/code><\/pre>\n
\u6211\u5b8c\u5168\u641e\u4e0d\u6e05\u695a\u5230\u5e95\u8c01\u4f1a\u4ece\u4e2d\u53d7\u76ca\u3002<\/p>\n
\u5f31\u6620\u5c04\u4ee525\u7968\u8d5e\u6210\u30010\u7968\u53cd\u5bf9\uff0c\u88ab\u63a5\u53d7\u901a\u8fc7\u3002
\n\u8fd9\u4e2a\u5730\u56fe\u76f8\u5bf9\u8f83\u5f31\u3002<\/p>\n
\u6839\u636e\u5b9e\u9645\u60c5\u51b5\uff0c\u5728PHP7.4\u4e2d\u5f15\u5165\u4e86\u5f31\u5f15\u7528\uff0c\u4f46\u66f4\u5e38\u7528\u7684\u5b9e\u9645\u4e0a\u662f\u4f7f\u7528\u5f31\u6620\u5c04\uff0c\u56e0\u6b64\u4f3c\u4e4e\u8981\u5bf9\u5176\u8fdb\u884c\u5f15\u5165\u3002<\/p>\n
\u6211\u65e0\u6cd5\u60f3\u5230\u4e00\u4e2a\u4f7f\u7528\u8fd9\u4e2a\u5730\u56fe\uff0c\u800c\u4e0d\u662f\u666e\u901a\u5730\u56fe\u7684\u573a\u666f\u3002<\/p>\n
\u83b7\u53d6\u8c03\u8bd5\u7c7b\u578b\u4ee542\u7968\u8d5e\u6210\u30013\u7968\u53cd\u5bf9\u7684\u7ed3\u679c\u88ab\u63a5\u53d7\u3002
\n\u8fd9\u662fget_debug_type\u3002<\/p>\n
\u603b\u7ed3\u8d77\u6765\uff0c\u53ef\u4ee5\u4f7f\u7528 `gettype()` \u548c `get_class()` \u6765\u83b7\u53d6\u5bf9\u8c61\u7684\u7c7b\u540d\u6216\u8005\u662f\u539f\u59cb\u7c7b\u578b\u7684\u540d\u79f0\u3002<\/p>\n
gettype<\/span>(<\/span>1<\/span>);<\/span>        \/\/ integer<\/span>\r\nget_class<\/span>(<\/span>1<\/span>);<\/span>      \/\/ TypeError<\/span>\r\nget_debug_type<\/span>(<\/span>1<\/span>);<\/span> \/\/ int<\/span>\r\n\r\ngettype<\/span>(<\/span>new<\/span> stdClass<\/span>);<\/span>        \/\/ object<\/span>\r\nget_class<\/span>(<\/span>new<\/span> stdClass<\/span>);<\/span>      \/\/ stdClass<\/span>\r\nget_debug_type<\/span>(<\/span>new<\/span> stdClass<\/span>);<\/span> \/\/ stdClass<\/span>\r\n<\/code><\/pre>\n
\u4e0d\u9700\u8981\u5206\u522b\u4f7f\u7528\uff0c\u4e5f\u4e0d\u4f1a\u51fa\u73b0\u4e0d\u6b63\u786e\u7684\u7c7b\u578b\u540d\u79f0\uff08\u5982integer\uff09\uff0c\u6240\u4ee5\u975e\u5e38\u65b9\u4fbf\u3002<\/p>\n
\u4e0d\u8981\u5728getMetadata()\u4e4b\u5916\u81ea\u52a8\u53cd\u5e8f\u5217\u5316Phar\u5143\u6570\u636e\u3002\u901a\u8fc725\u7968\u8d5e\u6210\u30010\u7968\u53cd\u5bf9\u901a\u8fc7\u3002
\n\u8fd9\u662f\u5173\u4e8e\u5904\u7406Phar\u5143\u6570\u636e\u7684RFC\u3002<\/p>\n
\u5728PHP7\u4e2d\uff0c\u5f53\u67e5\u627ePhar\u6587\u4ef6\u65f6\uff0c\u4f8b\u5982file_exists(“phar:\/\/path\/to\/phar.ext”)\uff0c\u5c06\u81ea\u52a8\u5c55\u5f00\u8be5\u6587\u4ef6\u7684\u5143\u6570\u636e\u3002\u56e0\u6b64\uff0c\u8fd9\u53ef\u80fd\u5bfc\u81f4\u6240\u8c13\u7684\u4e0d\u5b89\u5168\u7684\u53cd\u5e8f\u5217\u5316\u653b\u51fb\u6210\u4e3a\u53ef\u80fd\u3002<\/p>\n
\u56e0\u6b64\uff0c\u6211\u5c06\u5bf9\u5176\u8fdb\u884c\u4fee\u6539\uff0c\u9664\u975e\u624b\u52a8\u8c03\u7528Phar :: getMetadata\uff0c\u5426\u5219\u4e0d\u4f1a\u5c55\u5f00\u5143\u6570\u636e\u3002<\/p>\n
\u53e6\u5916\uff0cgetMetadata\u4f7f\u7528unserialize\u6765\u5c55\u5f00\u5143\u6570\u636e\u3002
\n\u6240\u4ee5\u6211\u4eec\u6dfb\u52a0\u53c2\u6570$unserialize_options\uff0c\u5141\u8bb8\u4efb\u610f\u66f4\u6539\u53cd\u5e8f\u5217\u5316\u65b9\u6cd5\u3002<\/p>\n
\u7136\u800c\uff0c\u6211\u603b\u89c9\u5f97\u53ea\u8981\u670d\u52a1\u5668\u4e0a\u5b58\u653e\u7684Phar\u6587\u4ef6\u88ab\u6c61\u67d3\uff0c\u800c\u4e0d\u662f\u50cfCookie\u90a3\u6837\u7684\u5916\u90e8\u53ef\u6c61\u67d3\u6570\u636e\uff0c\u5c31\u4f1a\u6709\u70b9\u4e0d\u5999\u3002\u4f60\u89c9\u5f97\u5462\uff1f<\/p>\n
\u4e3a\u5185\u5bb9\u7ba1\u7406\u7cfb\u7edf\u589e\u52a0\u652f\u6301
\n\u6ca1\u6709\u6295\u7968\u3002
\n\u8fd9\u662f\u5173\u4e8eCMS\u652f\u6301\u7684RFC\u3002<\/p>\n
\u5373\u4f7f\u88ab\u79f0\u4e3aCMS\uff0c\u4e5f\u5e76\u4e0d\u662f\u6307\u5185\u5bb9\u7ba1\u7406\u7cfb\u7edf\uff0c\u800c\u662f\u6307RFC5652\u4e2d\u7684\u52a0\u5bc6\u6d88\u606f\u8bed\u6cd5\uff08Cryptographic Message Syntax\uff09\u3002\u5b9e\u73b0\u4e86\u7528\u4e8e\u52a0\u5bc6\u548c\u89e3\u5bc6\u7684\u51fd\u6570\uff0c\u5982openssl_cms_encrypt\u7b49\u76f8\u5f53\u4e8eopenssl_pkcs7_encrypt\u3002<\/p>\n
\u867d\u7136\u63d0\u51fa\u4e86RFC\uff0c\u4f46\u7531\u4e8eOpenSSL\u7684\u57fa\u672c\u529f\u80fd\u5e76\u4e0d\u9700\u8981\u8fdb\u884c\u6295\u7968\uff0c\u6240\u4ee5\u4f3c\u4e4e\u88ab\u91c7\u7528\u800c\u65e0\u9700\u8fdb\u884c\u6295\u7968\u3002<\/p>\n
\u5370\u8c61\u563f\uff0c\u90a3\u4e2a\u8bf4PHP8\u6ca1\u4ec0\u4e48\u4e86\u4e0d\u8d77\u7684\u4eba\u662f\u8c01\u554a\u3002
\n\u771f\u7684\u53d8\u5f97\u76f8\u5f53\u60ca\u4eba\u4e86\u3002<\/p>\n
\u5c3d\u7ba1\u5c5e\u6027\u7684\u4f7f\u7528\u65b9\u5f0f\u6709\u4e9b\u4e0d\u900f\u660e\uff0c\u4f46\u9664\u6b64\u4e4b\u5916\uff0c\u5b83\u5e94\u8be5\u4f1a\u88ab\u987a\u5229\u5730\u5b9e\u73b0\u3002
\n\u4f7f\u7528\u8fd9\u4e9b\u529f\u80fd\uff0cPHP8 \u53ef\u4ee5\u8ba9\u7f16\u5199\u53d8\u5f97\u66f4\u52a0\u5bb9\u6613\u3001\u53ef\u8bfb\u6027\u66f4\u9ad8\uff0c\u5e76\u4e14\u80fd\u591f\u521b\u5efa\u66f4\u5feb\u7684\u7a0b\u5e8f\u3002
\n\u56e0\u6b64\uff0c\u4e4b\u524d\u4f7f\u7528\u4e00\u4e9b\u968f\u610f\u7f16\u5199\u7684\u4ee3\u7801\u53ef\u80fd\u4f1a\u53d8\u5f97\u66f4\u52a0\u56f0\u96be\u3002<\/p>\n
\u53e6\u5916\uff0c\u6b64\u5217\u8868\u53ea\u5305\u542b\u4e86RFC\u901a\u8fc7\u6295\u7968\u88ab\u63a5\u53d7\u548c\u51b3\u5b9a\u5b9e\u65bd\u7684\u5185\u5bb9\u3002
\n\u9664\u6b64\u4e4b\u5916\uff0c\u8fd8\u5e94\u5305\u62ec\u4e00\u4e9b\u4fee\u590d\u9519\u8bef\u548cRFC\u63d0\u51fa\u6570\u91cf\u5e76\u4e0d\u591a\u7684\u5c0f\u6539\u52a8\u7b49\u3002
\n\u7531\u4e8ePHP 8\u7684\u63a8\u51fa\uff0cPHP\u5df2\u7ecf\u975e\u5e38\u63a5\u8fd1\u5b8c\u7f8e\u7684\u611f\u89c9\u4e86\u3002
\n\u8fd8\u80fd\u671f\u5f85\u6709\u6bd4\u8fd9\u66f4\u5927\u7684\u9700\u6c42\u5417\uff1f\u4e5f\u8bb8\u5c31\u53ea\u6709\u6cdb\u578b\u4e86\u5427\u3002<\/p>\n
\u5982\u679c\u8bf4\u4e86\u8fd9\u6837\u7684\u8bdd\uff0c\u4e0b\u4e00\u6b21\u4e5f\u53ef\u80fd\u4f1a\u88ab\u63ea\u51fa\u5f88\u591a\u95ee\u9898\u6765\u3002<\/p>\n
\u524d\u4e0d\u4e45\uff0cMicrosoft\u4f5c\u4e3a\u4e00\u5bb6\u4f01\u4e1a\u5ba3\u5e03\u4e0d\u652f\u6301PHP8\uff0c\u8fd9\u662f\u4e00\u4e2a\u4ee4\u4eba\u9057\u61be\u7684\u6d88\u606f\uff0c\u4f46\u76ee\u524d\u6709\u5fd7\u8005\u5df2\u8fc5\u901f\u63d0\u4f9b\u4e86Windows\u7248\u672c\u7684\u6784\u5efa\u3002\u5bf9\u4e8ePHP8.0\u6765\u8bf4\uff0c\u5f71\u54cd\u4e0d\u4f1a\u592a\u5927\u3002\u867d\u7136\u4e0d\u6e05\u695a\u672a\u6765\u4f1a\u600e\u6837\uff08\u53ef\u80fd\u4f1a\u6d89\u53caWindows\u7248\u7279\u6709\u7684\u9519\u8bef\u7b49\u60c5\u51b5\uff09\uff0c\u53ef\u80fd\u662f\u8bf4\u8981\u8d76\u5feb\u8f6c\u5411WSL2\u5427\u3002\u4f46\u662f\u5bf9\u4e8e\u672c\u5730\u5f00\u53d1\u6765\u8bf4\uff0cXAMPP\u8db3\u591f\u4e86\uff0c\u4e0d\u60f3\u9ebb\u70e6\u5730\u4e00\u4e2a\u4e2a\u6572\u547d\u4ee4\uff0c\u5e0c\u671b\u80fd\u66f4\u7b80\u5316\u4e00\u4e9b\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
PHP8.2 \/ PHP8.1 \/ PHP8.0 \/ PHP7.4 \u53ef\u4f9b\u9009\u62e9\u7684 PHP \u7248\u672c\u4e3a\uff1a 2020\u5e741 […]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[227],"class_list":["post-30472","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-227"],"yoast_head":"\n\u3010PHP8.0\u3011PHP8.0\u7684\u65b0\u529f\u80fd - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"\u5173\u4e8e\u3010PHP8.0\u3011PHP8.0\u7684\u65b0\u529f\u80fd\u7684\u6280\u672f\u6587\u7ae0\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/\u3010php8-0\u3011php8-0\u7684\u65b0\u529f\u80fd-2\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u3010PHP8.0\u3011PHP8.0\u7684\u65b0\u529f\u80fd\" \/>\n<meta property=\"og:description\" content=\"\u5173\u4e8e\u3010PHP8.0\u3011PHP8.0\u7684\u65b0\u529f\u80fd\u7684\u6280\u672f\u6587\u7ae0\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/\u3010php8-0\u3011php8-0\u7684\u65b0\u529f\u80fd-2\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2023-12-28T21:42:10+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-08-12T11:19:59+00:00\" \/>\n<meta name=\"author\" content=\"\u6e05, \u626c\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u6e05, \u626c\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90php8-0%e3%80%91php8-0%e7%9a%84%e6%96%b0%e5%8a%9f%e8%83%bd-2\/\",\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90php8-0%e3%80%91php8-0%e7%9a%84%e6%96%b0%e5%8a%9f%e8%83%bd-2\/\",\"name\":\"\u3010PHP8.0\u3011PHP8.0\u7684\u65b0\u529f\u80fd - Blog - Silicon Cloud\",\"isPartOf\":{\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#website\"},\"datePublished\":\"2023-12-28T21:42:10+00:00\",\"dateModified\":\"2025-08-12T11:19:59+00:00\",\"author\":{\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/cb5556d2501da73d864cac945e8d9461\"},\"description\":\"\u5173\u4e8e\u3010PHP8.0\u3011PHP8.0\u7684\u65b0\u529f\u80fd\u7684\u6280\u672f\u6587\u7ae0\",\"breadcrumb\":{\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90php8-0%e3%80%91php8-0%e7%9a%84%e6%96%b0%e5%8a%9f%e8%83%bd-2\/#breadcrumb\"},\"inLanguage\":\"zh-Hans\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90php8-0%e3%80%91php8-0%e7%9a%84%e6%96%b0%e5%8a%9f%e8%83%bd-2\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90php8-0%e3%80%91php8-0%e7%9a%84%e6%96%b0%e5%8a%9f%e8%83%bd-2\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\/\/www.silicloud.com\/zh\/blog\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"\u3010PHP8.0\u3011PHP8.0\u7684\u65b0\u529f\u80fd\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#website\",\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/\",\"name\":\"Blog - Silicon Cloud\",\"description\":\"\",\"inLanguage\":\"zh-Hans\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/cb5556d2501da73d864cac945e8d9461\",\"name\":\"\u6e05, \u626c\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-Hans\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/32a4239de8ff29adace466261d309424a1e5fe9f7e3036bf89fe03f2e3dbe717?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/32a4239de8ff29adace466261d309424a1e5fe9f7e3036bf89fe03f2e3dbe717?s=96&d=mm&r=g\",\"caption\":\"\u6e05, \u626c\"},\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/author\/qingyang\/\"},{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-Hans\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90php8-0%e3%80%91php8-0%e7%9a%84%e6%96%b0%e5%8a%9f%e8%83%bd-2\/#local-main-organization-logo\",\"url\":\"\",\"contentUrl\":\"\",\"caption\":\"Blog - Silicon Cloud\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"\u3010PHP8.0\u3011PHP8.0\u7684\u65b0\u529f\u80fd - Blog - Silicon Cloud","description":"\u5173\u4e8e\u3010PHP8.0\u3011PHP8.0\u7684\u65b0\u529f\u80fd\u7684\u6280\u672f\u6587\u7ae0","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.silicloud.com\/zh\/blog\/\u3010php8-0\u3011php8-0\u7684\u65b0\u529f\u80fd-2\/","og_locale":"zh_CN","og_type":"article","og_title":"\u3010PHP8.0\u3011PHP8.0\u7684\u65b0\u529f\u80fd","og_description":"\u5173\u4e8e\u3010PHP8.0\u3011PHP8.0\u7684\u65b0\u529f\u80fd\u7684\u6280\u672f\u6587\u7ae0","og_url":"https:\/\/www.silicloud.com\/zh\/blog\/\u3010php8-0\u3011php8-0\u7684\u65b0\u529f\u80fd-2\/","og_site_name":"Blog - Silicon Cloud","article_published_time":"2023-12-28T21:42:10+00:00","article_modified_time":"2025-08-12T11:19:59+00:00","author":"\u6e05, \u626c","twitter_card":"summary_large_image","twitter_misc":{"\u4f5c\u8005":"\u6e05, \u626c","\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4":"1 \u5206"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90php8-0%e3%80%91php8-0%e7%9a%84%e6%96%b0%e5%8a%9f%e8%83%bd-2\/","url":"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90php8-0%e3%80%91php8-0%e7%9a%84%e6%96%b0%e5%8a%9f%e8%83%bd-2\/","name":"\u3010PHP8.0\u3011PHP8.0\u7684\u65b0\u529f\u80fd - Blog - Silicon Cloud","isPartOf":{"@id":"https:\/\/www.silicloud.com\/zh\/blog\/#website"},"datePublished":"2023-12-28T21:42:10+00:00","dateModified":"2025-08-12T11:19:59+00:00","author":{"@id":"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/cb5556d2501da73d864cac945e8d9461"},"description":"\u5173\u4e8e\u3010PHP8.0\u3011PHP8.0\u7684\u65b0\u529f\u80fd\u7684\u6280\u672f\u6587\u7ae0","breadcrumb":{"@id":"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90php8-0%e3%80%91php8-0%e7%9a%84%e6%96%b0%e5%8a%9f%e8%83%bd-2\/#breadcrumb"},"inLanguage":"zh-Hans","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90php8-0%e3%80%91php8-0%e7%9a%84%e6%96%b0%e5%8a%9f%e8%83%bd-2\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90php8-0%e3%80%91php8-0%e7%9a%84%e6%96%b0%e5%8a%9f%e8%83%bd-2\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/www.silicloud.com\/zh\/blog\/"},{"@type":"ListItem","position":2,"name":"\u3010PHP8.0\u3011PHP8.0\u7684\u65b0\u529f\u80fd"}]},{"@type":"WebSite","@id":"https:\/\/www.silicloud.com\/zh\/blog\/#website","url":"https:\/\/www.silicloud.com\/zh\/blog\/","name":"Blog - Silicon Cloud","description":"","inLanguage":"zh-Hans"},{"@type":"Person","@id":"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/cb5556d2501da73d864cac945e8d9461","name":"\u6e05, \u626c","image":{"@type":"ImageObject","inLanguage":"zh-Hans","@id":"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/32a4239de8ff29adace466261d309424a1e5fe9f7e3036bf89fe03f2e3dbe717?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/32a4239de8ff29adace466261d309424a1e5fe9f7e3036bf89fe03f2e3dbe717?s=96&d=mm&r=g","caption":"\u6e05, \u626c"},"url":"https:\/\/www.silicloud.com\/zh\/blog\/author\/qingyang\/"},{"@type":"ImageObject","inLanguage":"zh-Hans","@id":"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90php8-0%e3%80%91php8-0%e7%9a%84%e6%96%b0%e5%8a%9f%e8%83%bd-2\/#local-main-organization-logo","url":"","contentUrl":"","caption":"Blog - Silicon Cloud"}]}},"_links":{"self":[{"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/posts\/30472","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/comments?post=30472"}],"version-history":[{"count":3,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/posts\/30472\/revisions"}],"predecessor-version":[{"id":111745,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/posts\/30472\/revisions\/111745"}],"wp:attachment":[{"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/media?parent=30472"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/categories?post=30472"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/tags?post=30472"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}