{"id":47619,"date":"2024-12-02T11:31:04","date_gmt":"2024-12-02T03:31:04","guid":{"rendered":"https:\/\/fwq.ai\/blog\/47619\/"},"modified":"2024-12-02T11:31:04","modified_gmt":"2024-12-02T03:31:04","slug":"php-%e5%87%bd%e6%95%b0%e6%9c%89%e5%93%aa%e4%ba%9b%e4%b8%bb%e8%a6%81%e5%88%86%e7%b1%bb%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/47619\/","title":{"rendered":"PHP \u51fd\u6570\u6709\u54ea\u4e9b\u4e3b\u8981\u5206\u7c7b\uff1f"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>PHP \u51fd\u6570\u6709\u54ea\u4e9b\u4e3b\u8981\u5206\u7c7b\uff1f<\/h1>\n<p>\u7c73\u4e91\u4eca\u5929\u5c06\u7ed9\u5927\u5bb6\u5e26\u6765<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aPHP \u51fd\u6570\u6709\u54ea\u4e9b\u4e3b\u8981\u5206\u7c7b\uff1f\u300b<\/span>\uff0c\u611f\u5174\u8da3\u7684\u670b\u53cb\u8bf7\u7ee7\u7eed\u770b\u4e0b\u53bb\u5427\uff01\u4ee5\u4e0b\u5185\u5bb9\u5c06\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\u4f60\u662f\u6b63\u5728\u5b66\u4e60<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6587\u7ae0<\/span>\u6216\u8005\u5df2\u7ecf\u662f\u5927\u4f6c\u7ea7\u522b\u4e86\uff0c\u90fd\u975e\u5e38\u6b22\u8fce\u4e5f\u5e0c\u671b\u5927\u5bb6\u90fd\u80fd\u7ed9\u6211\u5efa\u8bae\u8bc4\u8bba\u54c8~\u5e0c\u671b\u80fd\u5e2e\u52a9\u5230\u5927\u5bb6\uff01<\/p>\n<p>PHP \u51fd\u6570\u6309\u529f\u80fd\u5206\u4e3a\u4ee5\u4e0b\u51e0\u7c7b\uff1a\u5185\u7f6e\u51fd\u6570\uff1a\u7531 PHP \u5185\u6838\u63d0\u4f9b\uff0c\u7528\u4e8e\u5e38\u7528\u4efb\u52a1\u3002\u7528\u6237\u81ea\u5b9a\u4e49\u51fd\u6570\uff1a\u7531\u7a0b\u5e8f\u5458\u5b9a\u4e49\uff0c\u7528\u4e8e\u89e3\u51b3\u7279\u5b9a\u95ee\u9898\u3002\u9b54\u672f\u51fd\u6570\uff1a\u4ee5\u4e24\u4e2a\u4e0b\u5212\u7ebf\u5f00\u5934\u548c\u7ed3\u5c3e\uff0c\u5728\u7279\u5b9a\u60c5\u51b5\u4e0b\u81ea\u52a8\u88ab\u8c03\u7528\u3002\u81ea\u5b9a\u4e49\u51fd\u6570\u56de\u8c03\uff1a\u5141\u8bb8\u5c06\u7528\u6237\u81ea\u5b9a\u4e49\u51fd\u6570\u4f5c\u4e3a\u53c2\u6570\u4f20\u9012\u7ed9\u5176\u4ed6\u51fd\u6570\uff0c\u5b9e\u73b0\u66f4\u7075\u6d3b\u5f3a\u5927\u7684\u4ee3\u7801\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241026\/1729926034671c939233f33.jpg\" class=\"aligncenter\" title=\"PHP \u51fd\u6570\u6709\u54ea\u4e9b\u4e3b\u8981\u5206\u7c7b\uff1f\u63d2\u56fe\" alt=\"PHP \u51fd\u6570\u6709\u54ea\u4e9b\u4e3b\u8981\u5206\u7c7b\uff1f\u63d2\u56fe\" \/><\/p>\n<h2>PHP \u51fd\u6570\u7684\u4e3b\u8981\u5206\u7c7b<\/h2>\n<p>\u5728 PHP \u4e2d\uff0c\u51fd\u6570\u662f\u4ee3\u7801\u7684\u5757\uff0c\u7528\u4e8e\u6267\u884c\u7279\u5b9a\u7684\u4efb\u52a1\u3002\u5b83\u4eec\u53ef\u4ee5\u88ab\u53cd\u590d\u8c03\u7528\uff0c\u4ece\u800c\u4f7f\u4ee3\u7801\u66f4\u52a0\u6a21\u5757\u5316\u548c\u53ef\u91cd\u7528\u3002PHP \u4e2d\u7684\u51fd\u6570\u6839\u636e\u5176\u529f\u80fd\u5927\u81f4\u53ef\u4ee5\u5206\u4e3a\u4ee5\u4e0b\u51e0\u5927\u7c7b\uff1a<\/p>\n<h3>\u5185\u7f6e\u51fd\u6570<\/h3>\n<p>\u5185\u7f6e\u51fd\u6570\u662f\u7531 PHP \u5185\u6838\u63d0\u4f9b\u7684\uff0c\u53ef\u4ee5\u4f9b\u6240\u6709 PHP \u7a0b\u5e8f\u4f7f\u7528\u3002\u5b83\u4eec\u63d0\u4f9b\u4e86\u5404\u79cd\u5e38\u7528\u7684\u529f\u80fd\uff0c\u4f8b\u5982\u5b57\u7b26\u4e32\u5904\u7406\u3001\u6570\u5b66\u8fd0\u7b97\u3001\u6570\u7ec4\u64cd\u4f5c\u548c\u6587\u4ef6\u5904\u7406\u3002<\/p>\n<p><strong>\u793a\u4f8b\uff1a<\/strong><\/p>\n<pre>echo strlen(\"Hello World\"); \/\/ \u8fd4\u56de\u5b57\u7b26\u4e32\u7684\u957f\u5ea6<\/pre>\n<h3>\u7528\u6237\u81ea\u5b9a\u4e49\u51fd\u6570<\/h3>\n<p>\u7528\u6237\u81ea\u5b9a\u4e49\u51fd\u6570\u662f\u7531\u7a0b\u5e8f\u5458\u81ea\u5df1\u5b9a\u4e49\u7684\uff0c\u7528\u4e8e\u89e3\u51b3\u7279\u5b9a\u95ee\u9898\u3002\u5b83\u4eec\u53ef\u4ee5\u901a\u8fc7 <code>function<\/code> \u5173\u952e\u5b57\u521b\u5efa\uff0c\u5e76\u5305\u542b\u8981\u6267\u884c\u7684\u4ee3\u7801\u3002<\/p>\n<p><strong>\u793a\u4f8b\uff1a<\/strong><\/p>\n<pre>function sayHello($name) {\n  echo \"Hello, $name!\";\n}\n\nsayHello(\"John\"); \/\/ \u8f93\u51fa \"Hello, John!\"<\/pre>\n<h3>\u9b54\u672f\u51fd\u6570<\/h3>\n<p>\u9b54\u672f\u51fd\u6570\u662f\u4e00\u79cd\u7279\u6b8a\u7c7b\u578b\u7684\u7528\u6237\u81ea\u5b9a\u4e49\u51fd\u6570\uff0c\u5728\u7279\u5b9a\u7684\u60c5\u51b5\u4e0b\u81ea\u52a8\u88ab PHP \u8c03\u7528\u3002\u5b83\u4eec\u4ee5\u4e24\u4e2a\u4e0b\u5212\u7ebf\u5f00\u5934\u548c\u7ed3\u5c3e\uff0c\u4f8b\u5982 <code>__construct()<\/code> \u548c <code>__destruct()<\/code>\u3002<\/p>\n<p><strong>\u793a\u4f8b\uff1a<\/strong><\/p>\n<pre>class MyClass {\n  public function __construct() {\n    echo \"This object has just been created.\";\n  }\n}\n\n$object = new MyClass(); \/\/ \u8f93\u51fa \"This object has just been created.\"<\/pre>\n<h3>\u81ea\u5b9a\u4e49\u51fd\u6570\u56de\u8c03<\/h3>\n<p>\u81ea\u5b9a\u4e49\u51fd\u6570\u56de\u8c03\u5141\u8bb8\u5c06\u7528\u6237\u81ea\u5b9a\u4e49\u51fd\u6570\u4f5c\u4e3a\u53c2\u6570\u4f20\u9012\u7ed9\u5176\u4ed6\u51fd\u6570\u6216\u65b9\u6cd5\u3002\u8fd9\u53ef\u4ee5\u5b9e\u73b0\u66f4\u52a0\u7075\u6d3b\u548c\u5f3a\u5927\u7684\u4ee3\u7801\u3002<\/p>\n<p><strong>\u793a\u4f8b\uff1a<\/strong><\/p>\n<pre>function applyFunction($array, $callback) {\n  foreach ($array as $value) {\n    $callback($value);\n  }\n}\n\n$array = [1, 2, 3, 4, 5];\n\napplyFunction($array, function($value) {\n  echo \"$value \";\n}); \/\/ \u8f93\u51fa \"1 2 3 4 5 \"<\/pre>\n<h3>\u5b9e\u6218\u6848\u4f8b\uff1a\u4f7f\u7528\u81ea\u5b9a\u4e49\u51fd\u6570\u521b\u5efa\u8d2d\u7269\u8f66<\/h3>\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u81ea\u5b9a\u4e49\u51fd\u6570\u793a\u4f8b\uff0c\u7528\u4e8e\u521b\u5efa\u4e00\u4e2a\u57fa\u672c\u7684\u8d2d\u7269\u8f66\uff1a<\/p>\n<pre>function add_to_cart($item, $quantity = 1) {\n  $_SESSION['cart'][$item] = $quantity;\n}\n\nadd_to_cart(\"apple\", 5);\nadd_to_cart(\"banana\", 3);<\/pre>\n<p>\u8fd9\u4e2a\u51fd\u6570\u5141\u8bb8\u6211\u4eec\u5c06\u9879\u76ee\u6dfb\u52a0\u5230\u4e00\u4e2a $_SESSION \u6570\u7ec4\uff0c\u8be5\u6570\u7ec4\u8868\u793a\u6211\u4eec\u7684\u8d2d\u7269\u8f66\u3002\u901a\u8fc7\u4f7f\u7528\u5b83\uff0c\u6211\u4eec\u53ef\u4ee5\u8f7b\u677e\u5730\u521b\u5efa\u548c\u7ba1\u7406\u8d2d\u7269\u8f66\u3002<\/p>\n<p>\u4eca\u5929\u5173\u4e8e\u300aPHP \u51fd\u6570\u6709\u54ea\u4e9b\u4e3b\u8981\u5206\u7c7b\uff1f\u300b\u7684\u5185\u5bb9\u4ecb\u7ecd\u5c31\u5230\u6b64\u7ed3\u675f\uff0c\u5982\u679c\u6709\u4ec0\u4e48\u7591\u95ee\u6216\u8005\u5efa\u8bae\uff0c\u53ef\u4ee5\u5728\u7c73\u4e91\u516c\u4f17\u53f7\u4e0b\u591a\u591a\u56de\u590d\u4ea4\u6d41\uff1b\u6587\u4e2d\u82e5\u6709\u4e0d\u6b63\u4e4b\u5904\uff0c\u4e5f\u5e0c\u671b\u56de\u590d\u7559\u8a00\u4ee5\u544a\u77e5\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>PHP \u51fd\u6570\u6709\u54ea\u4e9b\u4e3b\u8981\u5206\u7c7b\uff1f \u7c73\u4e91\u4eca\u5929\u5c06\u7ed9\u5927\u5bb6\u5e26\u6765\u300aPHP \u51fd\u6570\u6709\u54ea\u4e9b\u4e3b\u8981\u5206\u7c7b\uff1f\u300b\uff0c\u611f\u5174\u8da3\u7684\u670b\u53cb\u8bf7\u7ee7\u7eed\u770b\u4e0b\u53bb\u5427\uff01\u4ee5\u4e0b\u5185\u5bb9\u5c06\u4f1a\u6d89\u53ca\u5230\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u4f60\u662f\u6b63\u5728\u5b66\u4e60\u6587\u7ae0\u6216\u8005\u5df2\u7ecf\u662f\u5927\u4f6c\u7ea7\u522b\u4e86\uff0c\u90fd\u975e\u5e38\u6b22\u8fce\u4e5f\u5e0c\u671b\u5927\u5bb6\u90fd\u80fd\u7ed9\u6211\u5efa\u8bae\u8bc4\u8bba\u54c8~\u5e0c\u671b\u80fd\u5e2e\u52a9\u5230\u5927\u5bb6\uff01 PHP \u51fd\u6570\u6309\u529f\u80fd\u5206\u4e3a\u4ee5\u4e0b\u51e0\u7c7b\uff1a\u5185\u7f6e\u51fd\u6570\uff1a\u7531 PHP \u5185\u6838\u63d0\u4f9b\uff0c\u7528\u4e8e\u5e38\u7528\u4efb\u52a1\u3002\u7528\u6237\u81ea\u5b9a\u4e49\u51fd\u6570\uff1a\u7531\u7a0b\u5e8f\u5458\u5b9a\u4e49\uff0c\u7528\u4e8e\u89e3\u51b3\u7279\u5b9a\u95ee\u9898\u3002\u9b54\u672f\u51fd\u6570\uff1a\u4ee5\u4e24\u4e2a\u4e0b\u5212\u7ebf\u5f00\u5934\u548c\u7ed3\u5c3e\uff0c\u5728\u7279\u5b9a\u60c5\u51b5\u4e0b\u81ea\u52a8\u88ab\u8c03\u7528\u3002\u81ea\u5b9a\u4e49\u51fd\u6570\u56de\u8c03\uff1a\u5141\u8bb8\u5c06\u7528\u6237\u81ea\u5b9a\u4e49\u51fd\u6570\u4f5c\u4e3a\u53c2\u6570\u4f20\u9012\u7ed9\u5176\u4ed6\u51fd\u6570\uff0c\u5b9e\u73b0\u66f4\u7075\u6d3b\u5f3a\u5927\u7684\u4ee3\u7801\u3002 PHP \u51fd\u6570\u7684\u4e3b\u8981\u5206\u7c7b \u5728 PHP \u4e2d\uff0c\u51fd\u6570\u662f\u4ee3\u7801\u7684\u5757\uff0c\u7528\u4e8e\u6267\u884c\u7279\u5b9a\u7684\u4efb\u52a1\u3002\u5b83\u4eec\u53ef\u4ee5\u88ab\u53cd\u590d\u8c03\u7528\uff0c\u4ece\u800c\u4f7f\u4ee3\u7801\u66f4\u52a0\u6a21\u5757\u5316\u548c\u53ef\u91cd\u7528\u3002PHP \u4e2d\u7684\u51fd\u6570\u6839\u636e\u5176\u529f\u80fd\u5927\u81f4\u53ef\u4ee5\u5206\u4e3a\u4ee5\u4e0b\u51e0\u5927\u7c7b\uff1a \u5185\u7f6e\u51fd\u6570 \u5185\u7f6e\u51fd\u6570\u662f\u7531 PHP \u5185\u6838\u63d0\u4f9b\u7684\uff0c\u53ef\u4ee5\u4f9b\u6240\u6709 PHP \u7a0b\u5e8f\u4f7f\u7528\u3002\u5b83\u4eec\u63d0\u4f9b\u4e86\u5404\u79cd\u5e38\u7528\u7684\u529f\u80fd\uff0c\u4f8b\u5982\u5b57\u7b26\u4e32\u5904\u7406\u3001\u6570\u5b66\u8fd0\u7b97\u3001\u6570\u7ec4\u64cd\u4f5c\u548c\u6587\u4ef6\u5904\u7406\u3002 \u793a\u4f8b\uff1a echo strlen(&#8220;Hello World&#8221;); \/\/ \u8fd4\u56de\u5b57\u7b26\u4e32\u7684\u957f\u5ea6 \u7528\u6237\u81ea\u5b9a\u4e49\u51fd\u6570 \u7528\u6237\u81ea\u5b9a\u4e49\u51fd\u6570\u662f\u7531\u7a0b\u5e8f\u5458\u81ea\u5df1\u5b9a\u4e49\u7684\uff0c\u7528\u4e8e\u89e3\u51b3\u7279\u5b9a\u95ee\u9898\u3002\u5b83\u4eec\u53ef\u4ee5\u901a\u8fc7 function \u5173\u952e\u5b57\u521b\u5efa\uff0c\u5e76\u5305\u542b\u8981\u6267\u884c\u7684\u4ee3\u7801\u3002 \u793a\u4f8b\uff1a function sayHello($name) { echo &#8220;Hello, $name!&#8221;; } sayHello(&#8220;John&#8221;); \/\/ \u8f93\u51fa &#8220;Hello, John!&#8221; \u9b54\u672f\u51fd\u6570 \u9b54\u672f\u51fd\u6570\u662f\u4e00\u79cd\u7279\u6b8a\u7c7b\u578b\u7684\u7528\u6237\u81ea\u5b9a\u4e49\u51fd\u6570\uff0c\u5728\u7279\u5b9a\u7684\u60c5\u51b5\u4e0b\u81ea\u52a8\u88ab PHP \u8c03\u7528\u3002\u5b83\u4eec\u4ee5\u4e24\u4e2a\u4e0b\u5212\u7ebf\u5f00\u5934\u548c\u7ed3\u5c3e\uff0c\u4f8b\u5982 __construct() \u548c __destruct()\u3002 \u793a\u4f8b\uff1a class MyClass { public [&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-47619","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/47619","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=47619"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/47619\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=47619"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=47619"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=47619"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}