{"id":30483,"date":"2023-03-23T07:47:58","date_gmt":"2023-04-07T07:39:25","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%85%b3%e4%ba%8ephp%e5%91%bd%e5%90%8d%e7%a9%ba%e9%97%b4\/"},"modified":"2025-08-12T19:23:20","modified_gmt":"2025-08-12T11:23:20","slug":"%e5%85%b3%e4%ba%8ephp%e5%91%bd%e5%90%8d%e7%a9%ba%e9%97%b4","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%85%b3%e4%ba%8ephp%e5%91%bd%e5%90%8d%e7%a9%ba%e9%97%b4\/","title":{"rendered":"\u5173\u4e8ePHP\u547d\u540d\u7a7a\u95f4"},"content":{"rendered":"

\u9996\u5148<\/h2>\n

\u6211\u53eb\u85e4\u4e95\uff0c\u662f\u65e5\u672c\u7cfb\u7edf\u5f00\u53d1\u682a\u5f0f\u4f1a\u793e\u7684\u5458\u5de5\u3002\u8fd9\u6b21\u6211\u6574\u7406\u4e86\u5173\u4e8e\u547d\u540d\u7a7a\u95f4\u7684\u5185\u5bb9\u3002<\/p>\n

\u547d\u540d\u7a7a\u95f4\u662f\u6307\u4e00\u4e2a\u7a0b\u5e8f\u4e2d\u7684\u4ee3\u7801\u533a\u57df\uff0c\u7528\u4e8e\u89e3\u51b3\u53d8\u91cf\u6216\u51fd\u6570\u540d\u5728\u4e0d\u540c\u4f5c\u7528\u57df\u4e2d\u53ef\u80fd\u53d1\u751f\u7684\u547d\u540d\u51b2\u7a81\u95ee\u9898\u3002<\/h2>\n

\u8fd9\u662f\u4e00\u4e2a\u5c06\u7c7b\u3001\u51fd\u6570\u7b49\u5206\u7ec4\u7684\u529f\u80fd\u3002
\n\u901a\u8fc7\u5728PHP\u6807\u8bb0\u7684\u4e0b\u4e00\u884c\u58f0\u660enamespace hoge\uff0c\u4e4b\u540e\u7684\u5b9a\u4e49\u90fd\u5c5e\u4e8e\u8be5\u547d\u540d\u7a7a\u95f4\uff08\u7ec4\uff09\u3002
\n\u4f7f\u7528\u547d\u540d\u7a7a\u95f4\u53ef\u4ee5\u6309\u7ec4\u8fdb\u884c\u7c7b\u3001\u51fd\u6570\u7684\u7ba1\u7406\u3002<\/p>\n

\u4f7f\u7528\u65b9\u6cd5<\/h2>\n

\u8bf7\u7528\u6c49\u8bed\u628a”hoge.php”\u7ffb\u8bd1\u6210\u540c\u4e49\u8bcd\u3002<\/p>\n

<?php<\/span>\r\nnamespace<\/span> Hoge<\/span>;<\/span>\r\n\r\nclass<\/span> fizz<\/span>{<\/span>\r\n    function<\/span> __construct<\/span>()<\/span> {<\/span>\r\n        echo<\/span> \"hogeFizz\"<\/span> .<\/span> PHP_EOL<\/span>;<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n?><\/span>\r\n<\/code><\/pre>\n
foo.php \u53ef\u4ee5\u7528\u4e2d\u6587\u7ffb\u8bd1\u4e3a “\u996d\u9986.php”\u3002<\/p>\n
<?php<\/span>\r\nnamespace<\/span> Foo<\/span>;<\/span>\r\n\r\nrequire<\/span> \"hoge.php\"<\/span>;<\/span>\r\n\r\nclass<\/span> buzz<\/span>{<\/span>\r\n    function<\/span> __construct<\/span>()<\/span> {<\/span>\r\n        echo<\/span> \"buzz\"<\/span> .<\/span> PHP_EOL<\/span>;<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n\r\n$fizz<\/span> =<\/span> new<\/span> \\Hoge\\fizz<\/span>();<\/span>\r\n$fizz<\/span> =<\/span> new<\/span> buzz<\/span>();<\/span>\r\n?><\/span>\r\n<\/code><\/pre>\n
\u4f7f\u7528 `require “hoge.php”` \u5c06\u547d\u540d\u7a7a\u95f4\u4e3a Hoge \u7684 fizz \u7c7b\u52a0\u8f7d\u5230 foo.php \u4e2d\u3002
\n\u91c7\u7528\u524d\u7f00\u4e3a \\ \u7684\u5b8c\u5168\u9650\u5b9a\u540d\uff0c\u6307\u5b9a\u4e86\u547d\u540d\u7a7a\u95f4\u4e3a Hoge \u7684 fizz \u7c7b\u3002<\/p>\n
\u5168\u7403\u7a7a\u95f4\uff0c\u5b50\u547d\u540d\u7a7a\u95f4<\/h2>\n
\u5982\u679c\u547d\u540d\u7a7a\u95f4\u7684\u58f0\u660e\u4e0d\u5b58\u5728\uff0c\u5219\u8be5\u6587\u4ef6\u4e2d\u7684\u7c7b\u3001\u51fd\u6570\u7b49\u5c5e\u4e8e\u5168\u5c40\u7a7a\u95f4\u3002
\n\u5168\u5c40\u7a7a\u95f4\u4e2d\u5b58\u5728PHP\u9884\u5b9a\u4e49\u7684\u7c7b\u548c\u51fd\u6570\u3002<\/p>\n
\u547d\u540d\u7a7a\u95f4\u53ef\u4ee5\u5d4c\u5957\uff0cnamespace Foo\\Bar\u5c06\u6210\u4e3a\u547d\u540d\u7a7a\u95f4Foo\u7684\u5b50\u547d\u540d\u7a7a\u95f4Bar\u3002<\/p>\n
\u5728\u547d\u540d\u7a7a\u95f4\u5185\u89e3\u51b3\u7c7b\u8c03\u7528\u95ee\u9898\u3002<\/h2>\n
\u5b8c\u5168\u4fee\u9970\u540d
\n\u5e26\u6709\u201c\\\u201d\u524d\u7f00\u7684\u8c03\u7528\u5c06\u57fa\u4e8e\u5168\u5c40\u547d\u540d\u7a7a\u95f4\u8fdb\u884c\u89e3\u6790\u3002
\n\u5f62\u5f0f\u4e3a\\Foo\\Bar\\fizz\u3002\u5c06\u89e3\u6790\u4e3a\\Foo\\Bar\\fizz\u3002<\/p>\n
\u4fee\u9970\u540d
\n\u4e0d\u5305\u542b\u5728\u5f00\u5934\u7684\u5e26\u6709\u201c\\\u201d\u7684\u8c03\u7528\u5c06\u57fa\u4e8e\u5f53\u524d\u547d\u540d\u7a7a\u95f4\u8fdb\u884c\u89e3\u6790\u3002
\n\u5f62\u5f0f\u4e3aBar\\fizz\u3002\u5c06\u89e3\u6790\u4e3a\u5f53\u524d\u547d\u540d\u7a7a\u95f4\\Bar\\fizz\u3002<\/p>\n
\u975e\u4fee\u9970\u540d
\n\u4e0d\u5305\u542b\u4efb\u4f55\u201c\\\u201d\u7684\u8c03\u7528\u5c06\u5728\u5f53\u524d\u547d\u540d\u7a7a\u95f4\u4e2d\u89e3\u6790\u3002
\n\u5f62\u5f0f\u4e3afizz\u3002\u5c06\u89e3\u6790\u4e3a\u5f53\u524d\u547d\u540d\u7a7a\u95f4\\fizz\u3002<\/p>\n
\u4f7f\u7528 use \u8fdb\u53e3 \/ \u522b\u540d \u7684\u7c7b<\/h2>\n
\u4f7f\u7528”use”\u5173\u952e\u5b57\uff0c\u53ef\u4ee5\u4fee\u6539\u4e4b\u524d\u7684foo.php\u6587\u4ef6\u3002<\/p>\n
foo.php\u53ea\u9700\u8981\u4e00\u4e2a\u9009\u9879\uff0c\u8bf7\u7528\u4e2d\u6587\u8868\u8fbe<\/p>\n
<?php<\/span>\r\nnamespace<\/span> Foo<\/span>;<\/span>\r\n\r\nrequire<\/span> \"hoge.php\"<\/span>;<\/span>\r\n\r\nuse<\/span> Hoge\\fizz<\/span>;<\/span>\r\n\r\n$fizz<\/span> =<\/span> new<\/span> fizz<\/span>();<\/span>\r\n$fizz<\/span> =<\/span> new<\/span> fizz<\/span>();<\/span>\r\n?><\/span>\r\n<\/code><\/pre>\n
\u4f7f\u7528use\u5173\u952e\u5b57\uff0c\u6211\u4eec\u53ef\u4ee5\u50cfHoge\\fizz\u4e00\u6837\u4f7f\u7528Foo\\fizz\u3002\uff08\u5bfc\u5165\uff09
\n\u4f7f\u7528use\u5173\u952e\u5b57\u540e\uff0c\u6211\u4eec\u4e0d\u518d\u9700\u8981\u4f7f\u7528\u5b8c\u5168\u9650\u5b9a\u540d\uff0c\u53ef\u4ee5\u66f4\u7b80\u6d01\u5730\u5199\u4ee3\u7801\u3002<\/p>\n
\u4f7f\u7528use\u5173\u952e\u5b57\u5c06Hoge\\fizz\u5bfc\u5165\u5230\u5f53\u524d\u7684Foo\u4e2d\uff0c\u5e76\u53ef\u4ee5\u4e3a\u4e86\u907f\u514d\u4e0eFoo\u5185\u7684\u7c7b\u91cd\u540d\u800c\u7ed9\u5b83\u4e00\u4e2a\u522b\u540d\u3002<\/p>\n
foo.php \u7ffb\u8bd1\u4e3a\u6c49\u8bed\u7684\u4e00\u79cd\u53ef\u80fd\u9009\u9879\u662f\uff1a \u7f51\u5740.php<\/p>\n
<?php<\/span>\r\nnamespace<\/span> Foo<\/span>;<\/span>\r\n\r\nrequire<\/span> \"hoge.php\"<\/span>;<\/span>\r\n\r\nuse<\/span> Hoge\\fizz<\/span> as<\/span> hogeFizz<\/span>;<\/span>\r\n\r\nclass<\/span> fizz<\/span>{<\/span>\r\n    function<\/span> __construct<\/span>()<\/span> {<\/span>\r\n        echo<\/span> \"fooFizz\"<\/span> .<\/span> PHP_EOL<\/span>;<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n\r\n$fizz<\/span> =<\/span> new<\/span> HogeFizz<\/span>();<\/span>\r\n$fizz<\/span> =<\/span> new<\/span> fizz<\/span>();<\/span>\r\n?><\/span>\r\n<\/code><\/pre>\n
\u9884\u5b9a\u4e49\u7684\u7c7b<\/h2>\n
\u5728PHP\u4e2d\u6709\u4e00\u4e9b\u9884\u5b9a\u4e49\u7684\u7c7b\uff0c\u5982StdClass\u3002
\n\u5982\u679c\u4e0d\u4f7f\u7528\u547d\u540d\u7a7a\u95f4\uff0c\u53ef\u4ee5\u901a\u8fc7new StdClass()\u6765\u8c03\u7528\uff0c
\n\u4f46\u662f\u5982\u679c\u4f7f\u7528\u547d\u540d\u7a7a\u95f4\uff0c\u90a3\u4e48\u6ca1\u6709\u524d\u7f00\\\u7684\u8c03\u7528\u5c06\u4ee5\u5f53\u524d\u547d\u540d\u7a7a\u95f4\u4e3a\u57fa\u51c6\u8fdb\u884c\u8c03\u7528\u3002
\n\u56e0\u6b64\uff0c\u9884\u5b9a\u4e49\u7c7b\u5e94\u901a\u8fc7new \\StdClass()\u6765\u8c03\u7528\u3002<\/p>\n
<?php<\/span>\r\nnamespace<\/span> Huge<\/span>;<\/span>\r\n\r\n$std<\/span> =<\/span> new<\/span> \\StdClass<\/span>();<\/span>\r\nvar_dump<\/span>(<\/span>$std<\/span>);<\/span>\r\n\r\n\/\/ use\u3067\u306e\u30a4\u30f3\u30dd\u30fc\u30c8\u3082\u53ef\u80fd\u3067\u3059<\/span>\r\nuse<\/span> StdClass<\/span>;<\/span>\r\n$std<\/span> =<\/span> new<\/span> StdClass<\/span>();<\/span>\r\nvar_dump<\/span>(<\/span>$std<\/span>);<\/span>\r\n?><\/span>\r\n<\/code><\/pre>\n
PSR-4 \u53ef\u5728\u4e2d\u56fd\u7684\u672c\u5730\u5316\u4e88\u4ee5\u89e3\u91ca\u3002<\/h2>\n
\u8fd9\u662f\u6709\u5173\u4e8e\u81ea\u52a8\u52a0\u8f7d\u7684\u89c4\u683c\u3002<\/p>\n
autoload\u662f\u4e00\u4e2a\u6846\u67b6\uff0c\u7528\u4e8e\u5728\u8c03\u7528\u7c7b\u7684\u65f6\u5019\uff0c\u6839\u636e\u7c7b\u7684\u5b8c\u5168\u9650\u5b9a\u540d\u81ea\u52a8\u52a0\u8f7d\uff08\u5305\u542b\uff09\u6587\u4ef6\uff0c\u4ee5\u89e3\u51b3\u627e\u4e0d\u5230\u7c7b\u7684\u60c5\u51b5\u3002<\/p>\n
\u5177\u4f53\u6765\u8bf4\uff0c\u53ef\u4ee5\u4f7f\u7528spl_autoload_register\u51fd\u6570\u6ce8\u518c\u4e00\u4e2a\u7528\u4e8e\u52a0\u8f7d\u7684\u51fd\u6570\uff0c\u5f53\u627e\u4e0d\u5230\u7c7b\u65f6\u4f1a\u8c03\u7528\u8be5\u51fd\u6570\u3002
\npsr-4\u89c4\u8303\u662f\u4e00\u4e2a\u7528\u4e8e\u52a0\u8f7d\u51fd\u6570\u7684\u89c4\u8303\uff0c\u901a\u8fc7\u5c06\u547d\u540d\u7a7a\u95f4\u4e0e\u76ee\u5f55\u8fdb\u884c\u5173\u8054\uff0c\u53ef\u4ee5\u4ece\u81ea\u5b9a\u4e49\u7684\u76ee\u5f55\u7ed3\u6784\u4e2d\u52a0\u8f7d\u6587\u4ef6\u3002<\/p>\n
<?php<\/span>\r\nnamespace<\/span> Foo<\/span>;<\/span>\r\n\r\nuse<\/span> Hoge\\huga\\fizz<\/span>;<\/span>\r\n\r\n$fizz<\/span> =<\/span> new<\/span> fizz<\/span>;<\/span>\r\n?><\/span>\r\n<\/code><\/pre>\n
\u7531\u4e8eHoge\\huga\\fizz\u6ca1\u6709\u5b9a\u4e49\uff0c\u6240\u4ee5\u65e0\u6cd5\u627e\u5230\u7c7b\u800c\u62a5\u9519\u3002
\nspl_autoload_register\u51fd\u6570\u6ce8\u518c\u7684\u51fd\u6570\u4f1a\u5728\u8fd9\u4e2a\u65f6\u673a\u88ab\u8c03\u7528\u3002<\/p>\n
composer.json\u7684\u81ea\u52a8\u52a0\u8f7d<\/p>\n
\"autoload\"<\/span>:<\/span> {<\/span>\r\n    \"psr-4\"<\/span>:<\/span> {<\/span>\r\n        \"Hoge\\\\\"<\/span>:<\/span> \"app\/\"<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u4f7f\u7528composer\u7684PSR-4\uff0c\u53ef\u4ee5\u8bbf\u95eeHoge\\huga\\fizz\uff0c
\nHoge\u4f1a\u88ab\u8f6c\u6362\u4e3aapp\u76ee\u5f55\uff0cautoload\u5c06\u52a0\u8f7dapp\\huga\\fizz.php\u3002<\/p>\n
\u5982\u679c\u5728autoload\u7684\u6587\u4ef6\u4e2d\u6ca1\u6709\u58f0\u660e\u76f8\u5e94\u7684\u547d\u540d\u7a7a\u95f4\uff08Hoge\\huga\uff09\uff0c\u8bbf\u95ee\u7c7b\uff08new fizz\uff09\u5c06\u4f1a\u62a5\u9519\uff0c\u56e0\u4e3aautoload\u548c\u547d\u540d\u7a7a\u95f4\u662f\u4e0d\u540c\u7684\u529f\u80fd\u3002<\/p>\n
\u6982\u62ec<\/h2>\n
    \n
  • \n
      \u540d\u524d\u7a7a\u9593\u3068\u306f\u30af\u30e9\u30b9\u3084\u95a2\u6570…\u3092\u30b0\u30eb\u30fc\u30d7\u5316\u3057\u7ba1\u7406\u3059\u308b\u6a5f\u80fd<\/ul>\n<\/li>\n<\/ul>\n
       <\/p>\n
        \n
      • \n
          \u540d\u524d\u7a7a\u9593\u5185\u304b\u3089\u306e\u30af\u30e9\u30b9\u3084\u95a2\u6570…\u3078\u306e\u30a2\u30af\u30bb\u30b9\u306f\u3001\u5b8c\u5168\u4fee\u98fe\u540d\u3001\u4fee\u98fe\u540d\u3001\u975e\u4fee\u98fe\u540d\u306e\u3044\u305a\u308c\u304b\u3092\u7528\u3044\u308b<\/ul>\n<\/li>\n<\/ul>\n
           <\/p>\n
            \n
          • \n
              use\u3092\u4f7f\u3046\u3053\u3068\u3067\u3001\u7570\u306a\u308b\u540d\u524d\u7a7a\u9593\u306b\u3042\u308b\u30af\u30e9\u30b9\u3084\u95a2\u6570…\u3092\u73fe\u5728\u306e\u540d\u524d\u7a7a\u9593\u306b\u30a4\u30f3\u30dd\u30fc\u30c8\u3067\u304d\u308b<\/ul>\n<\/li>\n<\/ul>\n
               <\/p>\n
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