{"id":47150,"date":"2024-12-02T14:03:34","date_gmt":"2024-12-02T06:03:34","guid":{"rendered":"https:\/\/fwq.ai\/blog\/47150\/"},"modified":"2024-12-02T14:03:34","modified_gmt":"2024-12-02T06:03:34","slug":"php%e5%87%bd%e6%95%b0%e4%b8%ad%e7%9a%84%e5%91%bd%e5%90%8d%e5%8f%82%e6%95%b0%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/47150\/","title":{"rendered":"PHP\u51fd\u6570\u4e2d\u7684\u547d\u540d\u53c2\u6570\u5982\u4f55\u4f7f\u7528\uff1f"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>PHP\u51fd\u6570\u4e2d\u7684\u547d\u540d\u53c2\u6570\u5982\u4f55\u4f7f\u7528\uff1f<\/h1>\n<p>\u672c\u7bc7\u6587\u7ae0\u4e3b\u8981\u662f\u7ed3\u5408\u6211\u4e4b\u524d\u9762\u8bd5\u7684\u5404\u79cd\u7ecf\u5386\u548c\u5b9e\u6218\u5f00\u53d1\u4e2d\u9047\u5230\u7684\u95ee\u9898\u89e3\u51b3\u7ecf\u9a8c\u6574\u7406\u7684\uff0c\u5e0c\u671b\u8fd9\u7bc7\u300aPHP\u51fd\u6570\u4e2d\u7684\u547d\u540d\u53c2\u6570\u5982\u4f55\u4f7f\u7528\uff1f\u300b\u5bf9\u4f60\u6709\u5f88\u5927\u5e2e\u52a9\uff01\u6b22\u8fce\u6536\u85cf\uff0c\u5206\u4eab\u7ed9\u66f4\u591a\u7684\u9700\u8981\u7684\u670b\u53cb\u5b66\u4e60~<\/p>\n<p>PHP \u4e2d\u7684\u547d\u540d\u53c2\u6570\u53ef\u6309\u540d\u79f0\u4e3a\u53c2\u6570\u5206\u914d\u503c\uff0c\u63d0\u9ad8\u4ee3\u7801\u53ef\u8bfb\u6027\u548c\u7ef4\u62a4\u6027\u3002\u8bed\u6cd5\uff1afunction greet($name: &#8216;World&#8217;) {}\u7279\u6027\uff1a\u9ed8\u8ba4\u503c\uff1afunction calculateArea(width: float, height: float = 1) {}\u53ef\u9009\u53c2\u6570\uff1afunction sendEmail($to, $subject, $body = null) {}\u5b9e\u6218\u6848\u4f8b\uff1a$area = calculateArea(length: 5, width: 10);\u547d\u540d\u53c2\u6570\u4f7f\u51fd\u6570\u8c03\u7528\u66f4\u6e05\u6670\uff0c\u907f\u514d\u6df7\u6dc6\u53c2\u6570\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241025\/1729868380671bb25cf09ae.jpg\" class=\"aligncenter\" title=\"PHP\u51fd\u6570\u4e2d\u7684\u547d\u540d\u53c2\u6570\u5982\u4f55\u4f7f\u7528\uff1f\u63d2\u56fe\" alt=\"PHP\u51fd\u6570\u4e2d\u7684\u547d\u540d\u53c2\u6570\u5982\u4f55\u4f7f\u7528\uff1f\u63d2\u56fe\" \/><\/p>\n<p><strong>PHP \u51fd\u6570\u4e2d\u7684\u547d\u540d\u53c2\u6570\uff1a\u8be6\u89e3\u4e0e\u5b9e\u6218<\/strong><\/p>\n<p><strong>\u7b80\u4ecb<\/strong><\/p>\n<p>PHP \u4e2d\u7684\u547d\u540d\u53c2\u6570\u5141\u8bb8\u5728\u51fd\u6570\u8c03\u7528\u65f6\u6309\u540d\u79f0\u800c\u4e0d\u662f\u4f4d\u7f6e\u4e3a\u53c2\u6570\u5206\u914d\u503c\u3002\u8fd9\u63d0\u9ad8\u4e86\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027\uff0c\u7279\u522b\u662f\u5728\u5904\u7406\u5177\u6709\u5927\u91cf\u53c2\u6570\u7684\u51fd\u6570\u65f6\u3002<\/p>\n<p><strong>\u8bed\u6cd5<\/strong><\/p>\n<p>\u8981\u4f7f\u7528\u547d\u540d\u53c2\u6570\uff0c\u8bf7\u5728\u51fd\u6570\u53c2\u6570\u7684\u524d\u9762\u52a0\u4e0a\u53c2\u6570\u540d\u79f0\uff0c\u540e\u63a5\u5192\u53f7 (<code>:<\/code>)\u3002\u4f8b\u5982\uff1a<\/p>\n<pre>function greet($name = 'World') {\n    echo \"Hello $name!\";\n}\n\ngreet(name: 'John'); \/\/ \u8f93\u51fa\uff1aHello John!<\/pre>\n<p><strong>\u9ed8\u8ba4\u503c<\/strong><\/p>\n<p>\u9ed8\u8ba4\u503c\u5141\u8bb8\u4e3a\u547d\u540d\u53c2\u6570\u6307\u5b9a\u4e00\u4e2a\u9ed8\u8ba4\u503c\u3002\u5982\u679c\u5728\u51fd\u6570\u8c03\u7528\u4e2d\u672a\u63d0\u4f9b\u8be5\u53c2\u6570\uff0c\u5219\u4f7f\u7528\u9ed8\u8ba4\u503c\u3002\u4f8b\u5982\uff1a<\/p>\n<pre>function calculateArea(width: float, height: float = 1) {\n    return $width * $height;\n}\n\n$area = calculateArea(width: 5); \/\/ \u8f93\u51fa\uff1a5<\/pre>\n<p><strong>\u53ef\u9009\u53c2\u6570<\/strong><\/p>\n<p>\u53ef\u4ee5\u4f7f\u7528\u95ee\u53f7 (<code>?<\/code>) \u5c06\u53c2\u6570\u6807\u8bb0\u4e3a\u53ef\u9009\u3002\u5982\u679c\u5728\u51fd\u6570\u8c03\u7528\u4e2d\u672a\u63d0\u4f9b\u53ef\u9009\u53c2\u6570\uff0c\u5219\u5c06\u5176\u503c\u8bbe\u7f6e <code>null<\/code>\u3002\u4f8b\u5982\uff1a<\/p>\n<pre>function sendEmail($to, $subject, $body = null) {\n    \/\/ ...\u53d1\u9001\u7535\u5b50\u90ae\u4ef6...\n}\n\nsendEmail(to: 'john@example.com', subject: 'Important Update'); \/\/ $body \u4e3a null<\/pre>\n<p><strong>\u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n<p>\u8003\u8651\u4e00\u4e2a\u8ba1\u7b97\u77e9\u5f62\u9762\u79ef\u7684\u51fd\u6570\uff1a<\/p>\n<pre>function calculateArea($length, $width) {\n    return $length * $width;\n}\n\n\/\/ \u4f7f\u7528\u547d\u540d\u53c2\u6570\uff1a\n$area = calculateArea(length: 5, width: 10);\n\n\/\/ \u4f7f\u7528\u4f4d\u7f6e\u53c2\u6570\uff1a\n$area = calculateArea(5, 10);<\/pre>\n<p>\u4f7f\u7528\u547d\u540d\u53c2\u6570\u4f7f\u51fd\u6570\u8c03\u7528\u66f4\u52a0\u6e05\u6670\uff0c\u5e76\u907f\u514d\u4e86\u6df7\u6dc6\u957f\u5ea6\u548c\u5bbd\u5ea6\u7684\u53ef\u80fd\u6027\u3002<\/p>\n<p><strong>\u7ed3\u8bba<\/strong><\/p>\n<p>PHP \u4e2d\u7684\u547d\u540d\u53c2\u6570\u63d0\u4f9b\u4e86\u4e00\u4e2a\u5f3a\u5927\u4e14\u4fbf\u5229\u7684\u65b9\u6cd5\u6765\u5904\u7406\u51fd\u6570\u53c2\u6570\u3002\u5b83\u4eec\u63d0\u9ad8\u4e86\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u3001\u53ef\u7ef4\u62a4\u6027\u548c\u7075\u6d3b\u6027\uff0c\u7279\u522b\u662f\u5728\u5904\u7406\u5177\u6709\u5927\u91cf\u53c2\u6570\u7684\u51fd\u6570\u65f6\u3002<\/p>\n<p>\u6587\u4e2d\u5173\u4e8ephp,\u547d\u540d\u53c2\u6570\u7684\u77e5\u8bc6\u4ecb\u7ecd\uff0c\u5e0c\u671b\u5bf9\u4f60\u7684\u5b66\u4e60\u6709\u6240\u5e2e\u52a9\uff01\u82e5\u662f\u53d7\u76ca\u532a\u6d45\uff0c\u90a3\u5c31\u52a8\u52a8\u9f20\u6807\u6536\u85cf\u8fd9\u7bc7\u300aPHP\u51fd\u6570\u4e2d\u7684\u547d\u540d\u53c2\u6570\u5982\u4f55\u4f7f\u7528\uff1f\u300b\u6587\u7ae0\u5427\uff0c\u4e5f\u53ef\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\u4e86\u89e3\u76f8\u5173\u6280\u672f\u6587\u7ae0\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>PHP\u51fd\u6570\u4e2d\u7684\u547d\u540d\u53c2\u6570\u5982\u4f55\u4f7f\u7528\uff1f \u672c\u7bc7\u6587\u7ae0\u4e3b\u8981\u662f\u7ed3\u5408\u6211\u4e4b\u524d\u9762\u8bd5\u7684\u5404\u79cd\u7ecf\u5386\u548c\u5b9e\u6218\u5f00\u53d1\u4e2d\u9047\u5230\u7684\u95ee\u9898\u89e3\u51b3\u7ecf\u9a8c\u6574\u7406\u7684\uff0c\u5e0c\u671b\u8fd9\u7bc7\u300aPHP\u51fd\u6570\u4e2d\u7684\u547d\u540d\u53c2\u6570\u5982\u4f55\u4f7f\u7528\uff1f\u300b\u5bf9\u4f60\u6709\u5f88\u5927\u5e2e\u52a9\uff01\u6b22\u8fce\u6536\u85cf\uff0c\u5206\u4eab\u7ed9\u66f4\u591a\u7684\u9700\u8981\u7684\u670b\u53cb\u5b66\u4e60~ PHP \u4e2d\u7684\u547d\u540d\u53c2\u6570\u53ef\u6309\u540d\u79f0\u4e3a\u53c2\u6570\u5206\u914d\u503c\uff0c\u63d0\u9ad8\u4ee3\u7801\u53ef\u8bfb\u6027\u548c\u7ef4\u62a4\u6027\u3002\u8bed\u6cd5\uff1afunction greet($name: &#8216;World&#8217;) {}\u7279\u6027\uff1a\u9ed8\u8ba4\u503c\uff1afunction calculateArea(width: float, height: float = 1) {}\u53ef\u9009\u53c2\u6570\uff1afunction sendEmail($to, $subject, $body = null) {}\u5b9e\u6218\u6848\u4f8b\uff1a$area = calculateArea(length: 5, width: 10);\u547d\u540d\u53c2\u6570\u4f7f\u51fd\u6570\u8c03\u7528\u66f4\u6e05\u6670\uff0c\u907f\u514d\u6df7\u6dc6\u53c2\u6570\u3002 PHP \u51fd\u6570\u4e2d\u7684\u547d\u540d\u53c2\u6570\uff1a\u8be6\u89e3\u4e0e\u5b9e\u6218 \u7b80\u4ecb PHP \u4e2d\u7684\u547d\u540d\u53c2\u6570\u5141\u8bb8\u5728\u51fd\u6570\u8c03\u7528\u65f6\u6309\u540d\u79f0\u800c\u4e0d\u662f\u4f4d\u7f6e\u4e3a\u53c2\u6570\u5206\u914d\u503c\u3002\u8fd9\u63d0\u9ad8\u4e86\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027\uff0c\u7279\u522b\u662f\u5728\u5904\u7406\u5177\u6709\u5927\u91cf\u53c2\u6570\u7684\u51fd\u6570\u65f6\u3002 \u8bed\u6cd5 \u8981\u4f7f\u7528\u547d\u540d\u53c2\u6570\uff0c\u8bf7\u5728\u51fd\u6570\u53c2\u6570\u7684\u524d\u9762\u52a0\u4e0a\u53c2\u6570\u540d\u79f0\uff0c\u540e\u63a5\u5192\u53f7 (:)\u3002\u4f8b\u5982\uff1a function greet($name = &#8216;World&#8217;) { echo &#8220;Hello $name!&#8221;; } greet(name: &#8216;John&#8217;); \/\/ \u8f93\u51fa\uff1aHello John! \u9ed8\u8ba4\u503c \u9ed8\u8ba4\u503c\u5141\u8bb8\u4e3a\u547d\u540d\u53c2\u6570\u6307\u5b9a\u4e00\u4e2a\u9ed8\u8ba4\u503c\u3002\u5982\u679c\u5728\u51fd\u6570\u8c03\u7528\u4e2d\u672a\u63d0\u4f9b\u8be5\u53c2\u6570\uff0c\u5219\u4f7f\u7528\u9ed8\u8ba4\u503c\u3002\u4f8b\u5982\uff1a function calculateArea(width: float, height: float = [&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-47150","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/47150","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=47150"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/47150\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=47150"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=47150"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=47150"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}