{"id":30264,"date":"2023-08-23T17:28:53","date_gmt":"2022-12-09T01:50:39","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%85%b3%e4%ba%8ephp%e7%b1%bb\/"},"modified":"2025-08-12T18:21:44","modified_gmt":"2025-08-12T10:21:44","slug":"%e5%85%b3%e4%ba%8ephp%e7%b1%bb","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%85%b3%e4%ba%8ephp%e7%b1%bb\/","title":{"rendered":"\u5173\u4e8ePHP\u7c7b"},"content":{"rendered":"<h2>\u9996\u5148<\/h2>\n<p>PHP\u7684\u7c7b\u662f\u7531\u51fd\u6570\u548c\u53d8\u91cf\u7ec4\u5408\u800c\u6210\u7684\u96c6\u5408\u4f53\u3002<br \/>\n\u5728\u7c7b\u4e2d\uff0c\u5c06\u53d8\u91cf\u548c\u5e38\u91cf\u79f0\u4e3a\u5c5e\u6027\uff0c\u5c06\u51fd\u6570\u79f0\u4e3a\u65b9\u6cd5\u3002<\/p>\n<h2>\u6211\u5b9a\u4e49\u4e86\u4e00\u4e2a\u7c7b\uff0c\u5e76\u5199\u4e86\u4e00\u4e9b\u4ee3\u7801\u3002<\/h2>\n<p>\u4f8b\u5982\uff0c\u5982\u679c\u8981\u5b9a\u4e49\u4e00\u4e2a\u540d\u4e3aMale\u7684\u7c7b\uff0c\u5728\u4ee3\u7801\u4e2d\u53ef\u4ee5\u5199\u4f5cclass Male\u3002\u5728PHP\u4e2d\uff0c\u7c7b\u540d\u901a\u5e38\u4ee5\u5927\u5199\u5b57\u6bcd\u5f00\u5934\u3002<\/p>\n<pre class=\"post-pre\"><code>class Male{\r\n<\/code><\/pre>\n<p>\u5728\u7c7b\u5185\u90e8\u5b9a\u4e49\u7684\u53d8\u91cf\u548c\u5e38\u91cf\u79f0\u4e3a\u5c5e\u6027\u3002<\/p>\n<pre class=\"post-pre\"><code>public $name;\r\n<\/code><\/pre>\n<p>\u5728\u5e38\u91cf\u7684\u60c5\u51b5\u4e0b\u4f7f\u7528const\uff0c\u5728\u53d8\u91cf\u7684\u60c5\u51b5\u4e0b\u6839\u636e\u7528\u9014\u4f7f\u7528public\u3001protected\u6216private\u3002<br \/>\npublic\u3001protected\u548cprivate\u88ab\u79f0\u4e3a\u8bbf\u95ee\u4fee\u9970\u7b26\uff0c\u5e76\u4e14\u6709\u4ee5\u4e0b\u5dee\u5f02\u3002<\/p>\n<p>public = \u5141\u8bb8\u4ece\u4efb\u4f55\u5730\u65b9\u8bbf\u95ee\u3002<br \/>\nprotected = \u5141\u8bb8\u4ece\u5b9a\u4e49\u7684\u7c7b\u548c\u7ee7\u627f\u7c7b\u8fdb\u884c\u8bbf\u95ee\u3002<br \/>\nprivate = \u4ec5\u5141\u8bb8\u4ece\u540c\u4e00\u7c7b\u5185\u90e8\u8fdb\u884c\u8bbf\u95ee\u3002<\/p>\n<p>\u6784\u9020\u51fd\u6570\u662f\u5728\u5bf9\u8c61\u88abnew\u65f6\u81ea\u52a8\u8c03\u7528\u7684\u65b9\u6cd5\uff08\u5728\u7c7b\u5185\u90e8\uff0c\u65b9\u6cd5\u6307\u51fd\u6570\uff09\u3002<br \/>\n\u4e3a\u4e86\u5728\u65b9\u6cd5\u5185\u8c03\u7528\u5c5e\u6027\uff0c\u9700\u8981\u4f7f\u7528\u4f2a\u53d8\u91cf$this\uff08\u5bf9\u4e8e\u5e38\u91cf\uff0c\u4f7f\u7528self::\u5e38\u91cf\uff09<\/p>\n<pre class=\"post-pre\"><code>public function __construct($name){\r\n     $this-&gt;name = $name;\r\n}\r\n<\/code><\/pre>\n<p>\u521b\u5efa\u4e00\u4e2a\u5b9e\u4f8b\uff0c\u5e76\u5c06\u5176\u547d\u540d\u4e3asuzuki\u3002<\/p>\n<pre class=\"post-pre\"><code>$male = new Male('suzuki');\r\necho $male-&gt;name;\r\n<\/code><\/pre>\n<p>\u8f93\u51fa\u7ed3\u679c<\/p>\n<pre class=\"post-pre\"><code>suzuki\r\n<\/code><\/pre>\n<h2>\u7c7b\u7684\u7ee7\u627f<\/h2>\n<p>\u5728\u7ee7\u627f\u7c7b\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528&#8221;extends&#8221;\u3002<br \/>\n\u4f7f\u7528&#8221;extends&#8221;\uff0c\u5b50\u7c7b\uff08\u5728\u8fd9\u91cc\u662fHumanB\uff09\u53ef\u4ee5\u7ee7\u627fHuman\u7c7b\u7684\u65b9\u6cd5\u3002<\/p>\n<pre class=\"post-pre\"><code>&lt;?php\r\nclass Human{\r\n    public $name;\r\n\r\n    function __construct($name){\r\n        $this-&gt;name = $name;\r\n    }\r\n    public function sayHello() {\r\n        echo \"Hello, $this-&gt;name from A class\";\r\n    }\r\n}\r\n\r\nclass HumanB extends Human {\r\n\r\n    public function sayHello() {\r\n        echo \"Hello, $this-&gt;name from B class\";\r\n    }\r\n}\r\n\r\n$user1 = new Human(\"Suzuki Taichi\"); \r\n$user2 = new HumanB(\"Tanaka Kazuya\");\r\n\r\n$user1-&gt;sayHello(); \/\/ Hi, Aoba Suzukaze from User class\r\n$user2-&gt;sayHello(); \r\n?&gt;\r\n<\/code><\/pre>\n<p>\u8f93\u51fa\u7ed3\u679c<\/p>\n<pre class=\"post-pre\"><code>Hello, Suzuki Taichi from A class \r\nHello, Tanaka Kazuya from B class\r\n<\/code><\/pre>\n<p>\u5b50\u7c7b\u7ee7\u627f\u4e86\u7236\u7c7b\u7684\u65b9\u6cd5\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u9996\u5148 PHP\u7684\u7c7b\u662f\u7531\u51fd\u6570\u548c\u53d8\u91cf\u7ec4\u5408\u800c\u6210\u7684\u96c6\u5408\u4f53\u3002 \u5728\u7c7b\u4e2d\uff0c\u5c06\u53d8\u91cf\u548c\u5e38\u91cf\u79f0\u4e3a\u5c5e\u6027\uff0c\u5c06\u51fd\u6570\u79f0\u4e3a\u65b9\u6cd5\u3002 \u6211\u5b9a\u4e49\u4e86\u4e00\u4e2a [&hellip;]<\/p>\n","protected":false},"author":10,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[227],"class_list":["post-30264","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-227"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - 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