{"id":47022,"date":"2024-12-02T14:52:54","date_gmt":"2024-12-02T06:52:54","guid":{"rendered":"https:\/\/fwq.ai\/blog\/47022\/"},"modified":"2024-12-02T14:52:54","modified_gmt":"2024-12-02T06:52:54","slug":"php%e5%87%bd%e6%95%b0%e4%bb%a3%e7%a0%81%e9%83%a8%e7%bd%b2%e4%b8%ad%e7%9a%84%e5%b8%b8%e8%a7%81%e9%97%ae%e9%a2%98%e5%92%8c%e8%a7%a3%e5%86%b3%e6%96%b9%e6%a1%88","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/47022\/","title":{"rendered":"php\u51fd\u6570\u4ee3\u7801\u90e8\u7f72\u4e2d\u7684\u5e38\u89c1\u95ee\u9898\u548c\u89e3\u51b3\u65b9\u6848"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>php\u51fd\u6570\u4ee3\u7801\u90e8\u7f72\u4e2d\u7684\u5e38\u89c1\u95ee\u9898\u548c\u89e3\u51b3\u65b9\u6848<\/h1>\n<p>\u4ece\u73b0\u5728\u5f00\u59cb\uff0c\u52aa\u529b\u5b66\u4e60\u5427\uff01\u672c\u6587<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aphp\u51fd\u6570\u4ee3\u7801\u90e8\u7f72\u4e2d\u7684\u5e38\u89c1\u95ee\u9898\u548c\u89e3\u51b3\u65b9\u6848\u300b<\/span>\u4e3b\u8981\u8bb2\u89e3\u4e86<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\u76f8\u5173\u77e5\u8bc6\u70b9\uff0c\u6211\u4f1a\u5728\u7c73\u4e91\u4e2d\u6301\u7eed\u66f4\u65b0\u76f8\u5173\u7684\u7cfb\u5217\u6587\u7ae0\uff0c\u6b22\u8fce\u5927\u5bb6\u5173\u6ce8\u5e76\u79ef\u6781\u7559\u8a00\u5efa\u8bae\u3002\u4e0b\u9762\u5c31\u5148\u4e00\u8d77\u6765\u770b\u4e00\u4e0b\u672c\u7bc7\u6b63\u6587\u5185\u5bb9\u5427\uff0c\u5e0c\u671b\u80fd\u5e2e\u5230\u4f60\uff01<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241025\/1729860398671b932e87a1d.jpg\" class=\"aligncenter\" title=\"php\u51fd\u6570\u4ee3\u7801\u90e8\u7f72\u4e2d\u7684\u5e38\u89c1\u95ee\u9898\u548c\u89e3\u51b3\u65b9\u6848\u63d2\u56fe\" alt=\"php\u51fd\u6570\u4ee3\u7801\u90e8\u7f72\u4e2d\u7684\u5e38\u89c1\u95ee\u9898\u548c\u89e3\u51b3\u65b9\u6848\u63d2\u56fe\" \/><\/p>\n<p><strong>PHP \u51fd\u6570\u4ee3\u7801\u90e8\u7f72\u4e2d\u7684\u5e38\u89c1\u95ee\u9898\u548c\u89e3\u51b3\u65b9\u6848<\/strong><\/p>\n<p><strong>\u95ee\u9898 1\uff1a\u51fd\u6570\u672a\u5b9a\u4e49<\/strong><\/p>\n<p><strong>\u89e3\u51b3\u65b9\u6848\uff1a<\/strong><\/p>\n<ul>\n<li>\u786e\u4fdd\u51fd\u6570\u5df2\u5728\u6240\u6709\u53ef\u80fd\u8c03\u7528\u5b83\u7684\u811a\u672c\u4e2d\u5305\u542b\u3002<\/li>\n<li>\u4f7f\u7528 <code>declare<\/code> \u8bed\u53e5\u5728\u51fd\u6570\u8c03\u7528\u4e4b\u524d\u58f0\u660e\u51fd\u6570\u3002<\/li>\n<\/ul>\n<pre>declare(strict_types=1);\n\nfunction myFunction() {\n    \/\/ \u51fd\u6570\u4f53\n}\n\nmyFunction();<\/pre>\n<p><strong>\u95ee\u9898 2\uff1a\u51fd\u6570\u53c2\u6570\u9519\u8bef<\/strong><\/p>\n<p><strong>\u89e3\u51b3\u65b9\u6848\uff1a<\/strong><\/p>\n<ul>\n<li>\u68c0\u67e5\u51fd\u6570\u7684\u53c2\u6570\u7c7b\u578b\u662f\u5426\u4e0e\u4f20\u9012\u7684\u503c\u5339\u914d\u3002<\/li>\n<li>\u4f7f\u7528\u7c7b\u578b\u68c0\u67e5\u6765\u5f3a\u5236\u6267\u884c\u53c2\u6570\u7c7b\u578b\u3002<\/li>\n<\/ul>\n<pre>function myFunction(int $param1, string $param2): void {\n    \/\/ \u51fd\u6570\u4f53\n}\n\nmyFunction(1, 'abc'); \/\/ \u6b63\u786e\nmyFunction('1', 2); \/\/ \u9519\u8bef\uff0c\u7c7b\u578b\u4e0d\u5339\u914d<\/pre>\n<p><strong>\u95ee\u9898 3\uff1a\u9012\u5f52\u51fd\u6570\u5806\u6808\u6ea2\u51fa<\/strong><\/p>\n<p><strong>\u89e3\u51b3\u65b9\u6848\uff1a<\/strong><\/p>\n<ul>\n<li>\u786e\u4fdd\u9012\u5f52\u51fd\u6570\u6709\u660e\u786e\u7684\u9000\u51fa\u6761\u4ef6\u3002<\/li>\n<li>\u8003\u8651\u4f7f\u7528\u5c3e\u9012\u5f52\u4f18\u5316\u3002<\/li>\n<\/ul>\n<pre>function myRecursiveFunction($n) {\n    if ($n &lt; 0) {\n        return 0;\n    }\n\n    return $n + myRecursiveFunction($n - 1);\n}<\/pre>\n<p><strong>\u95ee\u9898 4\uff1a\u51fd\u6570\u4e0d\u53ef\u8bbf\u95ee<\/strong><\/p>\n<p><strong>\u89e3\u51b3\u65b9\u6848\uff1a<\/strong><\/p>\n<ul>\n<li>\u786e\u4fdd\u51fd\u6570\u5728\u5305\u542b\u5b83\u7684\u6587\u4ef6\u5916\u90e8\u5df2\u58f0\u660e\u3002<\/li>\n<li>\u68c0\u67e5\u51fd\u6570\u662f\u5426\u7531 <code>private<\/code> \u6216 <code>protected<\/code> \u8bbf\u95ee\u4fee\u9970\u7b26\u9650\u5236\u3002<\/li>\n<\/ul>\n<pre>\/\/ my_functions.php\nfunction myFunction() {\n    \/\/ \u51fd\u6570\u4f53\n}\n\n\/\/ script.php\ninclude 'my_functions.php';\nmyFunction(); \/\/ \u6b63\u786e<\/pre>\n<p><strong>\u95ee\u9898 5\uff1a\u51fd\u6570\u8986\u76d6<\/strong><\/p>\n<p><strong>\u89e3\u51b3\u65b9\u6848\uff1a<\/strong><\/p>\n<ul>\n<li>\u907f\u514d\u5728\u4e0d\u540c\u7684\u811a\u672c\u4e2d\u4f7f\u7528\u76f8\u540c\u51fd\u6570\u540d\u3002<\/li>\n<li>\u4f7f\u7528\u547d\u540d\u7a7a\u95f4\u6765\u9694\u79bb\u51fd\u6570\u3002<\/li>\n<\/ul>\n<pre>\/\/ namespace1\/myFunction.php\nnamespace namespace1;\nfunction myFunction() {\n    \/\/ \u51fd\u6570\u4f53\n}\n\n\/\/ namespace2\/myFunction.php\nnamespace namespace2;\nfunction myFunction() {\n    \/\/ \u51fd\u6570\u4f53\n}<\/pre>\n<p><strong>\u5b9e\u6218\u6848\u4f8b\uff1a<\/strong><\/p>\n<p>\u8003\u8651\u4e00\u4e2a\u7528\u4e8e\u8ba1\u7b97\u9636\u4e58\u7684\u51fd\u6570\uff1a<\/p>\n<pre>function factorial($num) {\n    if ($num &lt; 0) {\n        throw new Exception('Input must be non-negative');\n    }\n\n    if ($num == 0) {\n        return 1;\n    }\n\n    return $num * factorial($num - 1);\n}<\/pre>\n<p>\u90e8\u7f72\u6b64\u51fd\u6570\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u6280\u5de7\u6765\u907f\u514d\u5e38\u89c1\u95ee\u9898\uff1a<\/p>\n<ul>\n<li>\u5728\u5305\u542b\u6b64\u51fd\u6570\u7684\u811a\u672c\u4e2d\u5305\u542b\u8be5\u51fd\u6570\u3002<\/li>\n<li>\u5bf9\u53c2\u6570\u7c7b\u578b\u6267\u884c\u7c7b\u578b\u68c0\u67e5\u3002<\/li>\n<li>\u4f7f\u7528\u547d\u540d\u7a7a\u95f4\u6765\u907f\u514d\u4e0e\u5176\u4ed6\u811a\u672c\u4e2d\u7684\u51fd\u6570\u51b2\u7a81\u3002<\/li>\n<li>\u5904\u7406\u5f02\u5e38\u4ee5\u9632\u6b62\u90e8\u7f72\u671f\u95f4\u51fa\u73b0\u610f\u5916\u9519\u8bef\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662f\u300aphp\u51fd\u6570\u4ee3\u7801\u90e8\u7f72\u4e2d\u7684\u5e38\u89c1\u95ee\u9898\u548c\u89e3\u51b3\u65b9\u6848\u300b\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u5173\u4e8ephp,\u90e8\u7f72\u7684\u8d44\u6599\u8bf7\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>php\u51fd\u6570\u4ee3\u7801\u90e8\u7f72\u4e2d\u7684\u5e38\u89c1\u95ee\u9898\u548c\u89e3\u51b3\u65b9\u6848 \u4ece\u73b0\u5728\u5f00\u59cb\uff0c\u52aa\u529b\u5b66\u4e60\u5427\uff01\u672c\u6587\u300aphp\u51fd\u6570\u4ee3\u7801\u90e8\u7f72\u4e2d\u7684\u5e38\u89c1\u95ee\u9898\u548c\u89e3\u51b3\u65b9\u6848\u300b\u4e3b\u8981\u8bb2\u89e3\u4e86\u7b49\u7b49\u76f8\u5173\u77e5\u8bc6\u70b9\uff0c\u6211\u4f1a\u5728\u7c73\u4e91\u4e2d\u6301\u7eed\u66f4\u65b0\u76f8\u5173\u7684\u7cfb\u5217\u6587\u7ae0\uff0c\u6b22\u8fce\u5927\u5bb6\u5173\u6ce8\u5e76\u79ef\u6781\u7559\u8a00\u5efa\u8bae\u3002\u4e0b\u9762\u5c31\u5148\u4e00\u8d77\u6765\u770b\u4e00\u4e0b\u672c\u7bc7\u6b63\u6587\u5185\u5bb9\u5427\uff0c\u5e0c\u671b\u80fd\u5e2e\u5230\u4f60\uff01 PHP \u51fd\u6570\u4ee3\u7801\u90e8\u7f72\u4e2d\u7684\u5e38\u89c1\u95ee\u9898\u548c\u89e3\u51b3\u65b9\u6848 \u95ee\u9898 1\uff1a\u51fd\u6570\u672a\u5b9a\u4e49 \u89e3\u51b3\u65b9\u6848\uff1a \u786e\u4fdd\u51fd\u6570\u5df2\u5728\u6240\u6709\u53ef\u80fd\u8c03\u7528\u5b83\u7684\u811a\u672c\u4e2d\u5305\u542b\u3002 \u4f7f\u7528 declare \u8bed\u53e5\u5728\u51fd\u6570\u8c03\u7528\u4e4b\u524d\u58f0\u660e\u51fd\u6570\u3002 declare(strict_types=1); function myFunction() { \/\/ \u51fd\u6570\u4f53 } myFunction(); \u95ee\u9898 2\uff1a\u51fd\u6570\u53c2\u6570\u9519\u8bef \u89e3\u51b3\u65b9\u6848\uff1a \u68c0\u67e5\u51fd\u6570\u7684\u53c2\u6570\u7c7b\u578b\u662f\u5426\u4e0e\u4f20\u9012\u7684\u503c\u5339\u914d\u3002 \u4f7f\u7528\u7c7b\u578b\u68c0\u67e5\u6765\u5f3a\u5236\u6267\u884c\u53c2\u6570\u7c7b\u578b\u3002 function myFunction(int $param1, string $param2): void { \/\/ \u51fd\u6570\u4f53 } myFunction(1, &#8216;abc&#8217;); \/\/ \u6b63\u786e myFunction(&#8216;1&#8217;, 2); \/\/ \u9519\u8bef\uff0c\u7c7b\u578b\u4e0d\u5339\u914d \u95ee\u9898 3\uff1a\u9012\u5f52\u51fd\u6570\u5806\u6808\u6ea2\u51fa \u89e3\u51b3\u65b9\u6848\uff1a \u786e\u4fdd\u9012\u5f52\u51fd\u6570\u6709\u660e\u786e\u7684\u9000\u51fa\u6761\u4ef6\u3002 \u8003\u8651\u4f7f\u7528\u5c3e\u9012\u5f52\u4f18\u5316\u3002 function myRecursiveFunction($n) { if ($n &lt; 0) { [&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-47022","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/47022","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=47022"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/47022\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=47022"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=47022"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=47022"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}