{"id":46602,"date":"2024-12-02T09:59:42","date_gmt":"2024-12-02T01:59:42","guid":{"rendered":"https:\/\/fwq.ai\/blog\/46602\/"},"modified":"2024-12-02T09:59:42","modified_gmt":"2024-12-02T01:59:42","slug":"php%e5%87%bd%e6%95%b0%e5%af%b9%e8%b1%a1%e7%bc%96%e7%a8%8b%e6%8c%87%e5%8d%97%e7%9a%84%e6%9b%bf%e4%bb%a3%e6%96%b9%e6%a1%88%e6%98%af%e4%bb%80%e4%b9%88%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/46602\/","title":{"rendered":"php\u51fd\u6570\u5bf9\u8c61\u7f16\u7a0b\u6307\u5357\u7684\u66ff\u4ee3\u65b9\u6848\u662f\u4ec0\u4e48\uff1f"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>php\u51fd\u6570\u5bf9\u8c61\u7f16\u7a0b\u6307\u5357\u7684\u66ff\u4ee3\u65b9\u6848\u662f\u4ec0\u4e48\uff1f<\/h1>\n<p>\u4ece\u73b0\u5728\u5f00\u59cb\uff0c\u6211\u4eec\u8981\u52aa\u529b\u5b66\u4e60\u5566\uff01\u4eca\u5929\u6211\u7ed9\u5927\u5bb6\u5e26\u6765<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aphp\u51fd\u6570\u5bf9\u8c61\u7f16\u7a0b\u6307\u5357\u7684\u66ff\u4ee3\u65b9\u6848\u662f\u4ec0\u4e48\uff1f\u300b<\/span>\uff0c\u611f\u5174\u8da3\u7684\u670b\u53cb\u8bf7\u7ee7\u7eed\u770b\u4e0b\u53bb\u5427\uff01\u4e0b\u6587\u4e2d\u7684\u5185\u5bb9\u6211\u4eec\u4e3b\u8981\u4f1a\u6d89\u53ca\u5230<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u5728\u9605\u8bfb\u672c\u6587\u8fc7\u7a0b\u4e2d\u6709\u9047\u5230\u4e0d\u6e05\u695a\u7684\u5730\u65b9\uff0c\u6b22\u8fce\u7559\u8a00\u5440\uff01\u6211\u4eec\u4e00\u8d77\u8ba8\u8bba\uff0c\u4e00\u8d77\u5b66\u4e60\uff01<\/p>\n<p>\u51fd\u6570\u5bf9\u8c61\u7f16\u7a0b\u7684\u66ff\u4ee3\u65b9\u6848\u5305\u62ec\uff1a\u533f\u540d\u51fd\u6570\uff08\u4f7f\u7528 lambda \u8868\u8fbe\u5f0f\u6216\u7bad\u5934\u51fd\u6570\uff09\uff0c\u7c7b\u65b9\u6cd5\uff08\u4e3a\u56de\u8c03\u51fd\u6570\u63d0\u4f9b\u66f4\u597d\u7684\u53ef\u7ef4\u62a4\u6027\uff09\uff0c\u95ed\u5305\uff08\u53ef\u5728\u591a\u4e2a\u51fd\u6570\u4e4b\u95f4\u5171\u4eab\u72b6\u6001\uff09\u3002\u9009\u62e9\u54ea\u79cd\u65b9\u6cd5\u53d6\u51b3\u4e8e\u56de\u8c03\u51fd\u6570\u7684\u7c7b\u578b\u548c\u5927\u5c0f\uff0c\u4ee5\u53ca\u5bf9\u5916\u90e8\u72b6\u6001\u7684\u8bbf\u95ee\u9700\u6c42\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241018\/17292139656711b60df10a9.jpg\" class=\"aligncenter\" title=\"php\u51fd\u6570\u5bf9\u8c61\u7f16\u7a0b\u6307\u5357\u7684\u66ff\u4ee3\u65b9\u6848\u662f\u4ec0\u4e48\uff1f\u63d2\u56fe\" alt=\"php\u51fd\u6570\u5bf9\u8c61\u7f16\u7a0b\u6307\u5357\u7684\u66ff\u4ee3\u65b9\u6848\u662f\u4ec0\u4e48\uff1f\u63d2\u56fe\" \/><\/p>\n<h2>\u51fd\u6570\u5bf9\u8c61\u7f16\u7a0b\u7684\u66ff\u4ee3\u65b9\u6848<\/h2>\n<p>\u51fd\u6570\u5bf9\u8c61\u7f16\u7a0b\uff08FOP\uff09\u662f\u4e00\u79cd\u5229\u7528\u51fd\u6570\u4f5c\u4e3a\u5bf9\u8c61\u7684\u7f16\u7a0b\u6a21\u5f0f\u3002\u5b83\u901a\u5e38\u7528\u4e8e\u5b9a\u4e49\u56de\u8c03\u51fd\u6570\uff0c\u7528\u4e8e\u5728\u4e8b\u4ef6\u89e6\u53d1\u6216\u5176\u4ed6\u6761\u4ef6\u6ee1\u8db3\u65f6\u6267\u884c\u7279\u5b9a\u64cd\u4f5c\u3002<\/p>\n<p>\u867d\u7136 FOP \u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\u975e\u5e38\u6709\u7528\uff0c\u4f46\u5b83\u4e5f\u6709\u4e00\u4e9b\u7f3a\u70b9\uff0c\u5305\u62ec\u53ef\u7ef4\u62a4\u6027\u5dee\u3001\u53ef\u8bfb\u6027\u5dee\u4ee5\u53ca\u96be\u4ee5\u8c03\u8bd5\u3002<\/p>\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e9b\u51fd\u6570\u5bf9\u8c61\u7f16\u7a0b\u7684\u66ff\u4ee3\u65b9\u6848\uff1a<\/p>\n<h3>\u533f\u540d\u51fd\u6570<\/h3>\n<p>\u533f\u540d\u51fd\u6570\u662f\u4e00\u79cd\u6ca1\u6709\u540d\u79f0\u7684\u51fd\u6570\u3002\u5b83\u4eec\u53ef\u4ee5\u4f7f\u7528 lambda \u8868\u8fbe\u5f0f\u6216\u7bad\u5934\u51fd\u6570\u6765\u5b9a\u4e49\u3002\u533f\u540d\u51fd\u6570\u5bf9\u4e8e\u5feb\u901f\u5b9a\u4e49\u548c\u4f7f\u7528\u5c0f\u51fd\u6570\u975e\u5e38\u6709\u7528\u3002<\/p>\n<pre>\/\/ lambda \u8868\u8fbe\u5f0f\n$sum = function(int $a, int $b) {\n    return $a + $b;\n};\n\n\/\/ \u7bad\u5934\u51fd\u6570\n$sum = fn(int $a, int $b) =&gt; $a + $b;<\/pre>\n<h3>\u7c7b\u65b9\u6cd5<\/h3>\n<p>\u7c7b\u65b9\u6cd5\u53ef\u4ee5\u7528\u6765\u5b9a\u4e49\u56de\u8c03\u51fd\u6570\u3002\u7c7b\u65b9\u6cd5\u7684\u597d\u5904\u662f\u5b83\u4eec\u5177\u6709\u66f4\u597d\u7684\u53ef\u7ef4\u62a4\u6027\u5e76\u4e14\u66f4\u5bb9\u6613\u8c03\u8bd5\u3002<\/p>\n<pre>class MyClass {\n    public function sum(int $a, int $b) {\n        return $a + $b;\n    }\n}\n\n$myClass = new MyClass();\n$sum = [$myClass, 'sum'];<\/pre>\n<h3>\u95ed\u5305<\/h3>\n<p>\u95ed\u5305\u662f\u4e00\u79cd\u51fd\u6570\uff0c\u53ef\u4ee5\u8bbf\u95ee\u5b83\u7684\u4f5c\u7528\u57df\u4e4b\u5916\u7684\u53d8\u91cf\u3002\u95ed\u5305\u975e\u5e38\u9002\u5408\u5728\u591a\u4e2a\u51fd\u6570\u4e4b\u95f4\u5171\u4eab\u72b6\u6001\u3002<\/p>\n<pre>$x = 10;\n\n$closure = function() use ($x) {\n    return $x + 2;\n};<\/pre>\n<h3>\u5b9e\u6218\u6848\u4f8b<\/h3>\n<p>\u5047\u8bbe\u6211\u4eec\u60f3\u8981\u5b9a\u4e49\u4e00\u4e2a\u56de\u8c03\u51fd\u6570\uff0c\u7528\u4e8e\u6253\u5370\u5b57\u7b26\u4e32\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\uff1a<\/p>\n<p><strong>\u51fd\u6570\u5bf9\u8c61\u7f16\u7a0b\uff1a<\/strong><\/p>\n<pre>$callback = new class {\n    public function __invoke(string $message) {\n        echo $message;\n    }\n};<\/pre>\n<p><strong>\u533f\u540d\u51fd\u6570\uff1a<\/strong><\/p>\n<pre>$callback = fn(string $message) =&gt; echo $message;<\/pre>\n<p><strong>\u95ed\u5305\uff1a<\/strong><\/p>\n<pre>$callback = function(string $message) {\n    echo $message;\n};<\/pre>\n<p><strong>\u7c7b\u65b9\u6cd5\uff1a<\/strong><\/p>\n<pre>class MyClass {\n    public function printMessage(string $message) {\n        echo $message;\n    }\n}\n\n$myClass = new MyClass();\n$callback = [$myClass, 'printMessage'];<\/pre>\n<p>\u54ea\u79cd\u65b9\u6cd5\u6700\u9002\u5408\u53d6\u51b3\u4e8e\u5177\u4f53\u60c5\u51b5\u3002\u4e00\u822c\u6765\u8bf4\uff0c\u533f\u540d\u51fd\u6570\u548c\u95ed\u5305\u5bf9\u4e8e\u5c0f\u578b\u56de\u8c03\u51fd\u6570\u662f\u6700\u597d\u7684\u9009\u62e9\uff0c\u800c\u7c7b\u65b9\u6cd5\u5bf9\u4e8e\u5927\u578b\u56de\u8c03\u51fd\u6570\u6216\u9700\u8981\u8bbf\u95ee\u5916\u90e8\u72b6\u6001\u7684\u56de\u8c03\u51fd\u6570\u662f\u6700\u597d\u7684\u9009\u62e9\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u300aphp\u51fd\u6570\u5bf9\u8c61\u7f16\u7a0b\u6307\u5357\u7684\u66ff\u4ee3\u65b9\u6848\u662f\u4ec0\u4e48\uff1f\u300b\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u5173\u4e8ephp,\u5bf9\u8c61\u7684\u8d44\u6599\u8bf7\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>php\u51fd\u6570\u5bf9\u8c61\u7f16\u7a0b\u6307\u5357\u7684\u66ff\u4ee3\u65b9\u6848\u662f\u4ec0\u4e48\uff1f \u4ece\u73b0\u5728\u5f00\u59cb\uff0c\u6211\u4eec\u8981\u52aa\u529b\u5b66\u4e60\u5566\uff01\u4eca\u5929\u6211\u7ed9\u5927\u5bb6\u5e26\u6765\u300aphp\u51fd\u6570\u5bf9\u8c61\u7f16\u7a0b\u6307\u5357\u7684\u66ff\u4ee3\u65b9\u6848\u662f\u4ec0\u4e48\uff1f\u300b\uff0c\u611f\u5174\u8da3\u7684\u670b\u53cb\u8bf7\u7ee7\u7eed\u770b\u4e0b\u53bb\u5427\uff01\u4e0b\u6587\u4e2d\u7684\u5185\u5bb9\u6211\u4eec\u4e3b\u8981\u4f1a\u6d89\u53ca\u5230\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u5728\u9605\u8bfb\u672c\u6587\u8fc7\u7a0b\u4e2d\u6709\u9047\u5230\u4e0d\u6e05\u695a\u7684\u5730\u65b9\uff0c\u6b22\u8fce\u7559\u8a00\u5440\uff01\u6211\u4eec\u4e00\u8d77\u8ba8\u8bba\uff0c\u4e00\u8d77\u5b66\u4e60\uff01 \u51fd\u6570\u5bf9\u8c61\u7f16\u7a0b\u7684\u66ff\u4ee3\u65b9\u6848\u5305\u62ec\uff1a\u533f\u540d\u51fd\u6570\uff08\u4f7f\u7528 lambda \u8868\u8fbe\u5f0f\u6216\u7bad\u5934\u51fd\u6570\uff09\uff0c\u7c7b\u65b9\u6cd5\uff08\u4e3a\u56de\u8c03\u51fd\u6570\u63d0\u4f9b\u66f4\u597d\u7684\u53ef\u7ef4\u62a4\u6027\uff09\uff0c\u95ed\u5305\uff08\u53ef\u5728\u591a\u4e2a\u51fd\u6570\u4e4b\u95f4\u5171\u4eab\u72b6\u6001\uff09\u3002\u9009\u62e9\u54ea\u79cd\u65b9\u6cd5\u53d6\u51b3\u4e8e\u56de\u8c03\u51fd\u6570\u7684\u7c7b\u578b\u548c\u5927\u5c0f\uff0c\u4ee5\u53ca\u5bf9\u5916\u90e8\u72b6\u6001\u7684\u8bbf\u95ee\u9700\u6c42\u3002 \u51fd\u6570\u5bf9\u8c61\u7f16\u7a0b\u7684\u66ff\u4ee3\u65b9\u6848 \u51fd\u6570\u5bf9\u8c61\u7f16\u7a0b\uff08FOP\uff09\u662f\u4e00\u79cd\u5229\u7528\u51fd\u6570\u4f5c\u4e3a\u5bf9\u8c61\u7684\u7f16\u7a0b\u6a21\u5f0f\u3002\u5b83\u901a\u5e38\u7528\u4e8e\u5b9a\u4e49\u56de\u8c03\u51fd\u6570\uff0c\u7528\u4e8e\u5728\u4e8b\u4ef6\u89e6\u53d1\u6216\u5176\u4ed6\u6761\u4ef6\u6ee1\u8db3\u65f6\u6267\u884c\u7279\u5b9a\u64cd\u4f5c\u3002 \u867d\u7136 FOP \u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\u975e\u5e38\u6709\u7528\uff0c\u4f46\u5b83\u4e5f\u6709\u4e00\u4e9b\u7f3a\u70b9\uff0c\u5305\u62ec\u53ef\u7ef4\u62a4\u6027\u5dee\u3001\u53ef\u8bfb\u6027\u5dee\u4ee5\u53ca\u96be\u4ee5\u8c03\u8bd5\u3002 \u4ee5\u4e0b\u662f\u4e00\u4e9b\u51fd\u6570\u5bf9\u8c61\u7f16\u7a0b\u7684\u66ff\u4ee3\u65b9\u6848\uff1a \u533f\u540d\u51fd\u6570 \u533f\u540d\u51fd\u6570\u662f\u4e00\u79cd\u6ca1\u6709\u540d\u79f0\u7684\u51fd\u6570\u3002\u5b83\u4eec\u53ef\u4ee5\u4f7f\u7528 lambda \u8868\u8fbe\u5f0f\u6216\u7bad\u5934\u51fd\u6570\u6765\u5b9a\u4e49\u3002\u533f\u540d\u51fd\u6570\u5bf9\u4e8e\u5feb\u901f\u5b9a\u4e49\u548c\u4f7f\u7528\u5c0f\u51fd\u6570\u975e\u5e38\u6709\u7528\u3002 \/\/ lambda \u8868\u8fbe\u5f0f $sum = function(int $a, int $b) { return $a + $b; }; \/\/ \u7bad\u5934\u51fd\u6570 $sum = fn(int $a, int $b) =&gt; $a + $b; \u7c7b\u65b9\u6cd5 \u7c7b\u65b9\u6cd5\u53ef\u4ee5\u7528\u6765\u5b9a\u4e49\u56de\u8c03\u51fd\u6570\u3002\u7c7b\u65b9\u6cd5\u7684\u597d\u5904\u662f\u5b83\u4eec\u5177\u6709\u66f4\u597d\u7684\u53ef\u7ef4\u62a4\u6027\u5e76\u4e14\u66f4\u5bb9\u6613\u8c03\u8bd5\u3002 class MyClass { public function sum(int $a, int $b) { return [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-46602","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/46602","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=46602"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/46602\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=46602"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=46602"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=46602"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}