{"id":48079,"date":"2024-12-02T14:13:21","date_gmt":"2024-12-02T06:13:21","guid":{"rendered":"https:\/\/fwq.ai\/blog\/48079\/"},"modified":"2024-12-02T14:13:21","modified_gmt":"2024-12-02T06:13:21","slug":"%e5%a6%82%e4%bd%95%e5%9c%a8-php-%e5%87%bd%e6%95%b0%e4%b8%ad%e4%bd%bf%e7%94%a8%e5%a4%96%e9%83%a8%e5%87%bd%e6%95%b0%e4%bd%9c%e4%b8%ba%e5%9b%9e%e8%b0%83","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/48079\/","title":{"rendered":"\u5982\u4f55\u5728 PHP \u51fd\u6570\u4e2d\u4f7f\u7528\u5916\u90e8\u51fd\u6570\u4f5c\u4e3a\u56de\u8c03"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>\u5982\u4f55\u5728 PHP \u51fd\u6570\u4e2d\u4f7f\u7528\u5916\u90e8\u51fd\u6570\u4f5c\u4e3a\u56de\u8c03<\/h1>\n<p>\u5c0f\u4f19\u4f34\u4eec\u6709\u6ca1\u6709\u89c9\u5f97\u5b66\u4e60<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6587\u7ae0<\/span>\u5f88\u6709\u610f\u601d\uff1f\u6709\u610f\u601d\u5c31\u5bf9\u4e86\uff01\u4eca\u5929\u5c31\u7ed9\u5927\u5bb6\u5e26\u6765<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300a\u5982\u4f55\u5728 PHP \u51fd\u6570\u4e2d\u4f7f\u7528\u5916\u90e8\u51fd\u6570\u4f5c\u4e3a\u56de\u8c03\u300b<\/span>\uff0c\u4ee5\u4e0b\u5185\u5bb9\u5c06\u4f1a\u6d89\u53ca\u5230<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\uff0c\u82e5\u662f\u5728\u5b66\u4e60\u4e2d\u5bf9\u5176\u4e2d\u90e8\u5206\u77e5\u8bc6\u70b9\u6709\u7591\u95ee\uff0c\u6216\u8bb8\u770b\u4e86\u672c\u6587\u5c31\u80fd\u5e2e\u5230\u4f60\uff01<\/p>\n<p>\u5982\u4f55\u4f7f\u7528 PHP \u51fd\u6570\u4e2d\u7684\u5916\u90e8\u51fd\u6570\u4f5c\u4e3a\u56de\u8c03\uff1a\u5b9a\u4e49\u5916\u90e8\u51fd\u6570\u4f5c\u4e3a\u56de\u8c03\uff0c\u6307\u5b9a\u53c2\u6570\u548c\u8fd4\u56de\u7c7b\u578b\u3002\u5728\u5916\u56f4\u51fd\u6570\u4e2d\u5c06\u5916\u90e8\u51fd\u6570\u4f5c\u4e3a\u53c2\u6570\u4f20\u9012\u7ed9 callable\u3002\u8c03\u7528\u56de\u8c03\u51fd\u6570\uff0c\u4f20\u9012\u5fc5\u8981\u7684\u53c2\u6570\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241027\/1729987297671d82e1b1eed.jpg\" class=\"aligncenter\" title=\"\u5982\u4f55\u5728 PHP \u51fd\u6570\u4e2d\u4f7f\u7528\u5916\u90e8\u51fd\u6570\u4f5c\u4e3a\u56de\u8c03\u63d2\u56fe\" alt=\"\u5982\u4f55\u5728 PHP \u51fd\u6570\u4e2d\u4f7f\u7528\u5916\u90e8\u51fd\u6570\u4f5c\u4e3a\u56de\u8c03\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u5728 PHP \u51fd\u6570\u4e2d\u4f7f\u7528\u5916\u90e8\u51fd\u6570\u4f5c\u4e3a\u56de\u8c03<\/strong><\/p>\n<p><strong>\u7b80\u4ecb<\/strong><\/p>\n<p>\u56de\u8c03\u662f\u4e00\u7c7b\u4f5c\u4e3a\u53c2\u6570\u4f20\u9012\u7ed9\u53e6\u4e00\u4e2a\u51fd\u6570\u7684\u51fd\u6570\u3002\u5728 PHP \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u5916\u90e8\u51fd\u6570\u4f5c\u4e3a\u56de\u8c03\u3002\u8fd9\u5728\u9700\u8981\u5411\u73b0\u6709\u4ee3\u7801\u6dfb\u52a0\u81ea\u5b9a\u4e49\u884c\u4e3a\u6216\u5728\u4e0d\u540c\u51fd\u6570\u4e4b\u95f4\u521b\u5efa\u7075\u6d3b\u8fde\u63a5\u65f6\u975e\u5e38\u6709\u7528\u3002<\/p>\n<p><strong>\u8bed\u6cd5<\/strong><\/p>\n<p>\u4f7f\u7528\u5916\u90e8\u51fd\u6570\u4f5c\u4e3a\u56de\u8c03\u7684\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre>function exampleCallback(string $param1, int $param2): void\n{\n    \/\/ \u4f60\u7684\u4ee3\u7801\n}\n\nfunction outerFunction(callable $callback): void\n{\n    \/\/ \u8c03\u7528\u56de\u8c03\u51fd\u6570\n    $callback($param1, $param2);\n}<\/pre>\n<p><strong>\u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n<p>\u8ba9\u6211\u4eec\u4f7f\u7528\u4e00\u4e2a\u6392\u5e8f\u6570\u7ec4\u7684\u5b9e\u6218\u6848\u4f8b\u6765\u6f14\u793a\u5982\u4f55\u4f7f\u7528\u5916\u90e8\u51fd\u6570\u4f5c\u4e3a\u56de\u8c03\u3002\u6211\u4eec\u5c06\u521b\u5efa\u4e00\u4e2a\u81ea\u5b9a\u4e49\u6bd4\u8f83\u51fd\u6570\uff0c\u7136\u540e\u4f7f\u7528 PHP \u7684 <code>usort<\/code> \u51fd\u6570\u5c06\u6570\u7ec4\u6392\u5e8f\u3002<\/p>\n<pre>\/\/ \u81ea\u5b9a\u4e49\u6bd4\u8f83\u51fd\u6570\nfunction compareFunction(string $a, string $b): int\n{\n    return strcmp($a, $b);\n}\n\n\/\/ \u6d4b\u8bd5\u6570\u7ec4\n$arr = ['apple', 'banana', 'cherry', 'dog'];\n\n\/\/ \u4f7f\u7528\u5916\u90e8\u51fd\u6570\u4f5c\u4e3a\u56de\u8c03\u6392\u5e8f\u6570\u7ec4\nusort($arr, 'compareFunction');\n\n\/\/ \u6253\u5370\u6392\u5e8f\u540e\u7684\u6570\u7ec4\nprint_r($arr);<\/pre>\n<p>\u8f93\u51fa\uff1a<\/p>\n<pre>Array\n(\n    [0] =&gt; apple\n    [1] =&gt; banana\n    [2] =&gt; cherry\n    [3] =&gt; dog\n)<\/pre>\n<p><strong>\u7ed3\u8bba<\/strong><\/p>\n<p>\u5728 PHP \u4e2d\uff0c\u4f7f\u7528\u5916\u90e8\u51fd\u6570\u4f5c\u4e3a\u56de\u8c03\u662f\u4e00\u79cd\u5f3a\u5927\u7684\u6280\u672f\uff0c\u53ef\u5b9e\u73b0\u4ee3\u7801\u7684\u53ef\u91cd\u7528\u6027\u548c\u7075\u6d3b\u6027\u3002\u901a\u8fc7\u4f20\u9012\u81ea\u5b9a\u4e49\u51fd\u6570\u4f5c\u4e3a\u53c2\u6570\uff0c\u4f60\u53ef\u4ee5\u5411\u73b0\u6709\u4ee3\u7801\u6dfb\u52a0\u884c\u4e3a\u6216\u521b\u5efa\u4e0d\u540c\u51fd\u6570\u7684\u94fe\u63a5\u3002<\/p>\n<p>\u5230\u8fd9\u91cc\uff0c\u6211\u4eec\u4e5f\u5c31\u8bb2\u5b8c\u4e86\u300a\u5982\u4f55\u5728 PHP \u51fd\u6570\u4e2d\u4f7f\u7528\u5916\u90e8\u51fd\u6570\u4f5c\u4e3a\u56de\u8c03\u300b\u7684\u5185\u5bb9\u4e86\u3002\u4e2a\u4eba\u8ba4\u4e3a\uff0c\u57fa\u7840\u77e5\u8bc6\u7684\u5b66\u4e60\u548c\u5de9\u56fa\uff0c\u662f\u4e3a\u4e86\u66f4\u597d\u7684\u5c06\u5176\u8fd0\u7528\u5230\u9879\u76ee\u4e2d\uff0c\u6b22\u8fce\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\uff0c\u5e26\u4f60\u4e86\u89e3\u66f4\u591a\u5173\u4e8ePHP\u51fd\u6570,\u5916\u90e8\u51fd\u6570\u7684\u77e5\u8bc6\u70b9\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5982\u4f55\u5728 PHP \u51fd\u6570\u4e2d\u4f7f\u7528\u5916\u90e8\u51fd\u6570\u4f5c\u4e3a\u56de\u8c03 \u5c0f\u4f19\u4f34\u4eec\u6709\u6ca1\u6709\u89c9\u5f97\u5b66\u4e60\u6587\u7ae0\u5f88\u6709\u610f\u601d\uff1f\u6709\u610f\u601d\u5c31\u5bf9\u4e86\uff01\u4eca\u5929\u5c31\u7ed9\u5927\u5bb6\u5e26\u6765\u300a\u5982\u4f55\u5728 PHP \u51fd\u6570\u4e2d\u4f7f\u7528\u5916\u90e8\u51fd\u6570\u4f5c\u4e3a\u56de\u8c03\u300b\uff0c\u4ee5\u4e0b\u5185\u5bb9\u5c06\u4f1a\u6d89\u53ca\u5230\uff0c\u82e5\u662f\u5728\u5b66\u4e60\u4e2d\u5bf9\u5176\u4e2d\u90e8\u5206\u77e5\u8bc6\u70b9\u6709\u7591\u95ee\uff0c\u6216\u8bb8\u770b\u4e86\u672c\u6587\u5c31\u80fd\u5e2e\u5230\u4f60\uff01 \u5982\u4f55\u4f7f\u7528 PHP \u51fd\u6570\u4e2d\u7684\u5916\u90e8\u51fd\u6570\u4f5c\u4e3a\u56de\u8c03\uff1a\u5b9a\u4e49\u5916\u90e8\u51fd\u6570\u4f5c\u4e3a\u56de\u8c03\uff0c\u6307\u5b9a\u53c2\u6570\u548c\u8fd4\u56de\u7c7b\u578b\u3002\u5728\u5916\u56f4\u51fd\u6570\u4e2d\u5c06\u5916\u90e8\u51fd\u6570\u4f5c\u4e3a\u53c2\u6570\u4f20\u9012\u7ed9 callable\u3002\u8c03\u7528\u56de\u8c03\u51fd\u6570\uff0c\u4f20\u9012\u5fc5\u8981\u7684\u53c2\u6570\u3002 \u5982\u4f55\u5728 PHP \u51fd\u6570\u4e2d\u4f7f\u7528\u5916\u90e8\u51fd\u6570\u4f5c\u4e3a\u56de\u8c03 \u7b80\u4ecb \u56de\u8c03\u662f\u4e00\u7c7b\u4f5c\u4e3a\u53c2\u6570\u4f20\u9012\u7ed9\u53e6\u4e00\u4e2a\u51fd\u6570\u7684\u51fd\u6570\u3002\u5728 PHP \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u5916\u90e8\u51fd\u6570\u4f5c\u4e3a\u56de\u8c03\u3002\u8fd9\u5728\u9700\u8981\u5411\u73b0\u6709\u4ee3\u7801\u6dfb\u52a0\u81ea\u5b9a\u4e49\u884c\u4e3a\u6216\u5728\u4e0d\u540c\u51fd\u6570\u4e4b\u95f4\u521b\u5efa\u7075\u6d3b\u8fde\u63a5\u65f6\u975e\u5e38\u6709\u7528\u3002 \u8bed\u6cd5 \u4f7f\u7528\u5916\u90e8\u51fd\u6570\u4f5c\u4e3a\u56de\u8c03\u7684\u8bed\u6cd5\u5982\u4e0b\uff1a function exampleCallback(string $param1, int $param2): void { \/\/ \u4f60\u7684\u4ee3\u7801 } function outerFunction(callable $callback): void { \/\/ \u8c03\u7528\u56de\u8c03\u51fd\u6570 $callback($param1, $param2); } \u5b9e\u6218\u6848\u4f8b \u8ba9\u6211\u4eec\u4f7f\u7528\u4e00\u4e2a\u6392\u5e8f\u6570\u7ec4\u7684\u5b9e\u6218\u6848\u4f8b\u6765\u6f14\u793a\u5982\u4f55\u4f7f\u7528\u5916\u90e8\u51fd\u6570\u4f5c\u4e3a\u56de\u8c03\u3002\u6211\u4eec\u5c06\u521b\u5efa\u4e00\u4e2a\u81ea\u5b9a\u4e49\u6bd4\u8f83\u51fd\u6570\uff0c\u7136\u540e\u4f7f\u7528 PHP \u7684 usort \u51fd\u6570\u5c06\u6570\u7ec4\u6392\u5e8f\u3002 \/\/ \u81ea\u5b9a\u4e49\u6bd4\u8f83\u51fd\u6570 function compareFunction(string $a, string $b): int { 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-48079","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/48079","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=48079"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/48079\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=48079"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=48079"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=48079"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}