{"id":30522,"date":"2022-12-30T06:36:38","date_gmt":"2023-04-07T21:28:51","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90php8-2%e3%80%91-php%e7%9a%84%e9%9a%8f%e6%9c%ba%e6%95%b0%e5%8a%9f%e8%83%bd%e5%b0%86%e8%bf%9b%e4%b8%80%e6%ad%a5%e6%94%b9%e5%96%84%e3%80%82\/"},"modified":"2025-08-12T19:35:01","modified_gmt":"2025-08-12T11:35:01","slug":"%e3%80%90php8-2%e3%80%91-php%e7%9a%84%e9%9a%8f%e6%9c%ba%e6%95%b0%e5%8a%9f%e8%83%bd%e5%b0%86%e8%bf%9b%e4%b8%80%e6%ad%a5%e6%94%b9%e5%96%84%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90php8-2%e3%80%91-php%e7%9a%84%e9%9a%8f%e6%9c%ba%e6%95%b0%e5%8a%9f%e8%83%bd%e5%b0%86%e8%bf%9b%e4%b8%80%e6%ad%a5%e6%94%b9%e5%96%84%e3%80%82\/","title":{"rendered":"\u3010PHP8.2\u3011 PHP\u7684\u968f\u673a\u6570\u529f\u80fd\u5c06\u8fdb\u4e00\u6b65\u6539\u5584"},"content":{"rendered":"

\u6709\u5173PHP8.2\u4e2dPHP\u968f\u673a\u6570\u7684\u6539\u8fdb\u7684\u62a5\u9053\u540e\u6765\u51fa\u73b0\u4e86\u4e00\u4e9b\u95ee\u9898\u548c\u4e0d\u8db3\uff0c\u56e0\u6b64\u63d0\u51fa\u4e86\u4e00\u4e2a\u548c\u8fd9\u4e9b\u95ee\u9898\u6709\u5173\u7684\u540e\u7eedRFC\u6765\u89e3\u51b3\u5b83\u4eec\u3002<\/p>\n

\u4ee5\u4e0b\u662f\u5173\u4e8e\u968f\u673a\u6269\u5c55\u6539\u8fdb\u7684\u76f8\u5173RFC\u7684\u4ecb\u7ecd\u3002
\n\u867d\u7136\u6709\u4e03\u4e2a\u63d0\u6848\uff0c\u4f46\u5168\u90e8\u90fd\u88ab\u91c7\u7eb3\u4e86\u3002<\/p>\n

\u53e6\u5916\uff0c\u7531\u4e8e\u6b64RFC\u662f\u9488\u5bf9PHP8.2\u7684\uff0c\u56e0\u6b64\u4ece2022\u5e7412\u67088\u65e5\u53d1\u5e03\u7684PHP8.2\u7248\u672c\u8d77\uff0c\u5df2\u7ecf\u53ef\u4ee5\u4f7f\u7528\u4e86\u3002<\/p>\n

PHP RFC: \u968f\u673a\u6269\u5c55\u6539\u8fdb<\/h1>\n

\u7b80\u4ecb<\/h2>\n

\u5728\u6700\u8fd1\u7684Random Extension 5.x\u7248\u672c\u4e2d\uff0c\u6295\u7968\u5f00\u59cb\u540e\u51fa\u73b0\u4e86\u4e00\u4e9b\u95ee\u9898\u3002<\/p>\n

\u5f15\u64ce\u5b9e\u73b0\u8fd8\u672a\u5b8c\u5584\u3002<\/h3>\n

\u5728Random Extension\u4e2d\u63d0\u4f9b\u7684\u539f\u751f\u968f\u673a\u6570\u751f\u6210\u5f15\u64ce\u7684\u7c7b\u6ca1\u6709\u4f7f\u7528final\u4fee\u9970\u7b26\u3002
\n\u8fd9\u610f\u5473\u7740\u53ef\u4ee5\u521b\u5efa\u7ee7\u627f\u4e86\u539f\u751f\u7c7b\u7684\u5b50\u7c7b\uff0c\u4f46\u6b63\u5982\u4e0a\u6b21\u7684RFC\u6240\u63d0\u5230\u7684\u90a3\u6837\uff0c\u5728\u7528\u6237\u81ea\u5b9a\u4e49\u7684\u5f15\u64ce\u4e2d\uff0c\u6267\u884c\u6548\u7387\u4f1a\u4f4e\u4e8e\u539f\u751f\u7c7b\u3002
\n\u5373\u4f7f\u6ca1\u6709\u91cd\u5199\u65b9\u6cd5\uff0c\u8fd9\u79cd\u6548\u7387\u964d\u4f4e\u4e5f\u4f1a\u6210\u4e3a\u4e00\u4e2a\u95ee\u9898\u3002<\/p>\n

\u7531\u4e8e\u6269\u5c55\u5df2\u7ecf\u63d0\u4f9b\u4e86Random\\Engine\u63a5\u53e3\uff0c\u5373\u4f7f\u672c\u5730\u7c7b\u53d8\u4e3afinal\uff0c\u4f7f\u7528\u6b64\u6269\u5c55\u4e5f\u6ca1\u6709\u95ee\u9898\u3002<\/p>\n

\u8fd9\u662fAPI\u8bbe\u8ba1\u7684\u9519\u8bef\uff0c\u5e94\u8be5\u5c06\u968f\u673a\u6570\u5f15\u64ce\u7684\u672c\u673a\u5b9e\u73b0\u8bbe\u4e3afinal\u3002<\/p>\n

Random\\SerializableEngine \u6ca1\u6709\u7528\u5904\u3002<\/h3>\n

Random\\SerializableEngine\u662fSerializable\u63a5\u53e3\u4ecd\u7136\u5b58\u5728\u65f6\u7684\u6b8b\u7559\u7269\u3002
\n\u7531\u4e8e\u73b0\u5728\u7684PHP\u662f\u901a\u8fc7\u5b58\u5728__serialize()\u65b9\u6cd5\u6765\u5224\u65ad\u662f\u5426\u53ef\u5e8f\u5217\u5316\uff0c\u56e0\u6b64\u8fd9\u4e2a\u63a5\u53e3\u5df2\u7ecf\u53d8\u5f97\u4e0d\u518d\u9700\u8981\u3002<\/p>\n

\u6240\u4ee5\uff0c\u6211\u4eec\u5c06\u5220\u9664Random\\SerializableEngine\u3002<\/p>\n

\u73b0\u5728\u5b9e\u73b0SerializableEngine\u7684\u968f\u673a\u6570\u5f15\u64ce\u4e0d\u518d\u9700\u8981\u5b9e\u73b0\u6b64\u529f\u80fd\uff0c\u4f46\u4e0d\u4f1a\u5f71\u54cd\u5176\u53ef\u5e8f\u5217\u5316\u6027\u7684\u5224\u65ad\u3002<\/p>\n

Random\\Engine\\CombinedLCG\u662f\u4f4e\u8d28\u91cf\u7684\u3002<\/h3>\n

Random\\Engine\\CombinedLCG\u662f\u4e00\u4e2a\u4ec5\u5728lcg_value\u51fd\u6570\u4e2d\u4f7f\u7528\u7684\u968f\u673a\u6570\u5f15\u64ce\u3002
\n\u7136\u800c\uff0c\u8fd9\u4e2a\u7b97\u6cd5\u662f\u53e4\u8001\u4e14\u54c1\u8d28\u4f4e\u52a3\u7684\u3002<\/p>\n

\u4e3a\u4e86\u4fdd\u6301lcg_value\u7684\u503c\u4e0d\u53d8\uff0c\u5c06\u4fdd\u7559\u5185\u90e8\u5b9e\u73b0\uff0c\u4f46\u5e9f\u9664\u7c7b\uff0c\u5e76\u4e14\u65e0\u6cd5\u4ece\u5916\u90e8\u4f7f\u7528\u3002<\/p>\n

\u5728\u4e2d\u6587\u4e2d\u6ca1\u6709array_rand()\u7684\u7b49\u4ef7\u51fd\u6570\u3002<\/h3>\n

\u5728Randomizer\u4e2d\uff0c\u6ca1\u6709\u4e0earray_rand\u76f8\u5bf9\u5e94\u7684\u529f\u80fd\u3002
\n\u6839\u636e\u4ee5\u524d\u7684RFC\uff0c\u8fd9\u662f\u6709\u610f\u4e3a\u4e4b\u3002
\n\u4f46\u662f\uff0c\u6839\u636e\u6211\u7684\u7814\u7a76\uff0c\u7531\u4e8earray_rand\u5728\u8bb8\u591a\u5e93\u4e2d\u88ab\u5e7f\u6cdb\u4f7f\u7528\uff0c\u6240\u4ee5\u5728Randomizer\u4e2d\u4e5f\u5e94\u8be5\u53ef\u7528\u3002<\/p>\n

\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u5c06\u6dfb\u52a0\u4e00\u4e2aRandomizer::pickArrayKeys(array $array, int $num): array\u65b9\u6cd5\u3002
\n\u867d\u7136\u4e00\u5f00\u59cbarray_rand(array $array, int $num = 1): int|string|array\u4f3c\u4e4e\u4e0d\u517c\u5bb9\uff0c\u4f46\u662f\u901a\u8fc7\u4ee5\u4e0b\u65b9\u6cd5\uff0c\u6211\u4eec\u53ef\u4ee5\u5f97\u5230\u76f8\u540c\u7684\u7ed3\u679c\u3002<\/p>\n

$array<\/span> =<\/span> [<\/span>'foo'<\/span>,<\/span> 'bar'<\/span>,<\/span> 'baz'<\/span>];<\/span>\r\n\r\n\/\/ \u3053\u308c\u307e\u3067<\/span>\r\nmt_srand<\/span>(<\/span>1234<\/span>,<\/span> MT_RAND_PHP<\/span>);<\/span>\r\n$single<\/span> =<\/span> array_rand<\/span>(<\/span>$array<\/span>);<\/span> \/\/ 0<\/span>\r\n$multiple<\/span> =<\/span> array_rand<\/span>(<\/span>$array<\/span>,<\/span> 2<\/span>);<\/span> \/\/ [1, 2]<\/span>\r\n\r\n\/\/ \u4eca\u5f8c<\/span>\r\n$engine<\/span> =<\/span> new<\/span> Random\\Engine\\Mt19937<\/span>(<\/span>1234<\/span>,<\/span> MT_RAND_PHP<\/span>);<\/span>\r\n$randomizer<\/span> =<\/span> new<\/span> Random\\Randomizer<\/span>(<\/span>$engine<\/span>);<\/span>\r\n$single<\/span> =<\/span> $randomizer<\/span>-><\/span>pickArrayKeys<\/span>(<\/span>$array<\/span>,<\/span> 1<\/span>)[<\/span>0<\/span>];<\/span> \/\/ 0<\/span>\r\n$multiple<\/span> =<\/span> $randomizer<\/span>-><\/span>pickArrayKeys<\/span>(<\/span>$array<\/span>,<\/span> 2<\/span>);<\/span> \/\/ [1, 2]<\/span>\r\n<\/code><\/pre>\n
“\u5b57\u7b26\u4e32”\u4ee3\u8868\u4e00\u4e2a\u4e8c\u8fdb\u5236.<\/h3>\n
\u5728PHP\u4e2d\uff0c\u5b57\u7b26\u4e32\u610f\u5473\u7740\u4e8c\u8fdb\u5236\u6570\u636e\u3002
\n\u8fd9\u5728\u5904\u7406\u591a\u5b57\u8282\u5b57\u7b26\u4e32\u65f6\u4f1a\u6709\u95ee\u9898\uff0c\u4f8b\u5982\u4f7f\u7528str_shuffle\u51fd\u6570\u5904\u7406\u65e5\u8bed\u4f1a\u53d8\u5f97\u6df7\u4e71\u4e0d\u582a\u3002<\/p>\n
\u56e0\u6b64\uff0c\u5c06\u4e0estr_shuffle\u5bf9\u5e94\u7684\u65b9\u6cd5Randomizer::shuffleString()\u66f4\u540d\u4e3aRandomizer::shuffleBytes()\u5c06\u66f4\u52a0\u5408\u9002\u3002<\/p>\n
\u5f15\u64ce\u7c7b\u7684\u540d\u79f0\u4e0d\u591f\u7cbe\u786e\u3002<\/h3>\n
\u5f15\u64ce\u7c7b\u540d\u5b58\u5728\u6b67\u4e49\uff0c\u9700\u8981\u6539\u540d\u4ee5\u660e\u786e\u7b97\u6cd5\u3002
\nRandom\\Engine\\PCG64 \u2192 Random\\Engine\\PcgOneseq128XslRr64
\nRandom\\Engine\\MersenneTwister \u2192 Random\\Engine\\Mt19937<\/p>\n
PCG \u4e0d\u662f\u5f88\u6709\u540d\u3002<\/h3>\n
\u5c3d\u7ba1PCG\u7b97\u6cd5\u5177\u6709\u4f18\u79c0\u7684\u968f\u673a\u6027\u548c\u6027\u80fd\uff0c\u4f46\u4e0eXorshift\u76f8\u6bd4\uff0c\u5b83\u7684\u77e5\u540d\u5ea6\u8fdc\u900a\u4e00\u7b79\u3002<\/p>\n
\u4e3a\u4e86\u907f\u514d\u7531\u4e8e\u5bf9PCG\u4e0d\u719f\u6089\u800c\u9009\u62e9\u4f7f\u7528MT19937\uff0c\u6211\u4eec\u51b3\u5b9a\u4ee5\u524d\u8003\u8651\u8fc7\u7684Random\\Engine\\Xoshiro256StarStar\u4f5c\u4e3a\u5907\u9009\u65b9\u6848\u8fdb\u884c\u989d\u5916\u5b9e\u65bd\u3002<\/p>\n
\u5efa\u8bae<\/h2>\n
\u6211\u4eec\u5c06\u5c31\u5404\u4e2a\u8bae\u9898\u8fdb\u884c\u6295\u7968\u3002<\/p>\n
\u5f15\u64ce\u5b9e\u73b0\u5e76\u975e\u6700\u7ec8\u7248\u3002<\/h3>\n
\u4ee518\u7968\u8d5e\u6210\uff0c1\u7968\u53cd\u5bf9\u7684\u591a\u6570\u8d5e\u6210\u901a\u8fc7\u4e86\u3002<\/p>\n
\u968f\u673a\u7684\\\u53ef\u5e8f\u5217\u5316\u5f15\u64ce\u662f\u65e0\u7528\u7684\u3002<\/h3>\n
\u4ee518\u7968\u8d5e\u6210\u30010\u7968\u53cd\u5bf9\u7684\u8d5e\u6210\u591a\u6570\u901a\u8fc7\u4e86\u3002<\/p>\n
Random\\Engine\\CombinedLCG \u7684\u8d28\u91cf\u5f88\u4f4e\u3002<\/h3>\n
\u4ee518\u7968\u8d5e\u6210\u30010\u7968\u53cd\u5bf9\u7684\u591a\u6570\u8d5e\u6210\u901a\u8fc7\u3002<\/p>\n
\u6ca1\u6709\u4e0earray_rand()\u7b49\u540c\u7684\u51fd\u6570\u3002<\/h3>\n
\u4ee512\u7968\u8d5e\u6210\u30012\u7968\u53cd\u5bf9\u7684\u591a\u6570\u901a\u8fc7\u4e86\u3002<\/p>\n
\u201c\u5b57\u7b26\u4e32\u201d\u610f\u5473\u7740\u4e8c\u8fdb\u5236\u3002<\/h3>\n
\u4ee516\u7968\u8d5e\u6210\u30011\u7968\u53cd\u5bf9\u7684\u591a\u6570\u8d5e\u6210\u901a\u8fc7\u4e86\u3002<\/p>\n
\u5f15\u64ce\u7c7b\u540d\u4e0d\u51c6\u786e<\/h3>\n
\u8fd9\u9879\u51b3\u8bae\u4ee514\u7968\u8d5e\u6210\u30011\u7968\u53cd\u5bf9\u7684\u591a\u6570\u901a\u8fc7\u4e86\u3002<\/p>\n
PCG \u4e0d\u662f\u5f88\u6709\u540d\u3002<\/h3>\n
\u4ee513\u7968\u8d5e\u6210\u548c1\u7968\u53cd\u5bf9\u7684\u591a\u6570\u901a\u8fc7\u4e86\u6b64\u51b3\u8bae\u3002<\/p>\n
\u5411\u540e\u4e0d\u517c\u5bb9\u7684\u66f4\u6539 b\u00f9 de<\/h2>\n
\u4ee5\u4e0b\u7684\u7c7b\u540d\u5c06\u53d8\u4e3a\u65e0\u6548\u3002<\/p>\n
\u30fb\u968f\u673a\\\u5f15\u64ce\\Mt19937
\n\u30fb\u968f\u673a\\\u5f15\u64ce\\PcgOneseq128XslRr64
\n\u30fb\u968f\u673a\\\u5f15\u64ce\\Xoshiro256StarStar<\/p>\n
\u4ee5\u4e0b\u7684\u8bfe\u7a0b\u540d\u79f0\u5c06\u53ef\u4f9b\u4f7f\u7528\u3002<\/p>\n
\u30fb\u968f\u673a\u5f15\u64ce\\\u7ec4\u5408\u7ebf\u6027\u540c\u4f59\u53d1\u751f\u5668
\n\u30fb\u968f\u673a\u5f15\u64ce\\\u6885\u68ee\u65cb\u8f6c\u5b50
\n\u30fb\u968f\u673a\u5f15\u64ce\\PCG64
\n\u30fb\u968f\u673a\u53ef\u5e8f\u5217\u5316\u5f15\u64ce<\/p>\n
\u63d0\u8bae\u7684PHP\u7248\u672c<\/h2>\n
PHP8.2 can be expressed in Chinese as “PHP8.2 \u7248\u672c”<\/p>\n
RFC\u5f71\u54cd<\/h2>\n
\u6ca1\u6709\u7279\u522b\u7684\u4e8b\u60c5\u3002<\/p>\n
\u8d34\u7247\u548c\u6d4b\u8bd5<\/h2>\n
 <\/p>\n
\u53c2\u8003\u6587\u732e<\/h2>\n
 <\/p>\n
\u5370\u8c61<\/h1>\n
\u8fd9\u4e2aRFC\u4f1a\u8865\u5145\u548c\u4fee\u6539\u5173\u4e8e\u4e71\u6570\u7684\u6700\u521dRFC\u6240\u9057\u6f0f\u7684\u5185\u5bb9\u3002<\/p>\n
PHP\u5185\u90e8\u5728\u63d0\u6848\u9636\u6bb5\u901a\u5e38\u662f\u975e\u5e38\u51b7\u6de1\u7684\uff0c\u4f46\u4e00\u65e6\u5f00\u59cb\u6295\u7968\uff0c\u5c31\u4f1a\u7a81\u7136\u53d8\u5f97\u70ed\u70c8\u8d77\u6765\uff0c\u8fd9\u79cd\u574f\u4e60\u60ef\u5f88\u5e38\u89c1\uff0c\u4f8b\u5982\uff0c\u521b\u5efatraits\u4e2d\u7684\u5e38\u91cf\u7684\u4eba\u66fe\u7ecf\u8bf4\u8fc7\u975e\u5e38\u56f0\u6270\u7684\u8bdd\u3002
\n\uff08\u6211\u611f\u89c9\u597d\u50cf\u770b\u5230\u8fc7\u66f4\u76f4\u63a5\u7684\u8bf4\u6cd5\uff0c\u4f46\u662f\u627e\u4e0d\u5230\u4e86\uff09<\/p>\n
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