{"id":48010,"date":"2024-12-02T08:01:00","date_gmt":"2024-12-02T00:01:00","guid":{"rendered":"https:\/\/fwq.ai\/blog\/48010\/"},"modified":"2024-12-02T08:01:00","modified_gmt":"2024-12-02T00:01:00","slug":"php-%e5%87%bd%e6%95%b0%e5%a6%82%e4%bd%95%e5%9c%a8-oop-%e4%b8%ad%e4%bd%bf%e7%94%a8%e5%af%b9%e8%b1%a1%e7%bb%a7%e6%89%bf%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/48010\/","title":{"rendered":"PHP \u51fd\u6570\u5982\u4f55\u5728 OOP \u4e2d\u4f7f\u7528\u5bf9\u8c61\u7ee7\u627f\uff1f"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>PHP \u51fd\u6570\u5982\u4f55\u5728 OOP \u4e2d\u4f7f\u7528\u5bf9\u8c61\u7ee7\u627f\uff1f<\/h1>\n<p>\u5728\u6587\u7ae0\u5b9e\u6218\u5f00\u53d1\u7684\u8fc7\u7a0b\u4e2d\uff0c\u6211\u4eec\u7ecf\u5e38\u4f1a\u9047\u5230\u4e00\u4e9b\u8fd9\u6837\u90a3\u6837\u7684\u95ee\u9898\uff0c\u7136\u540e\u8981\u5361\u597d\u534a\u5929\uff0c\u7b49\u95ee\u9898\u89e3\u51b3\u4e86\u624d\u53d1\u73b0\u539f\u6765\u4e00\u4e9b\u7ec6\u8282\u77e5\u8bc6\u70b9\u8fd8\u662f\u6ca1\u6709\u638c\u63e1\u597d\u3002\u4eca\u5929\u7c73\u4e91\u5c31\u6574\u7406\u5206\u4eab\u300aPHP \u51fd\u6570\u5982\u4f55\u5728 OOP \u4e2d\u4f7f\u7528\u5bf9\u8c61\u7ee7\u627f\uff1f\u300b\uff0c\u804a\u804a\uff0c\u5e0c\u671b\u53ef\u4ee5\u5e2e\u52a9\u5230\u6b63\u5728\u52aa\u529b\u8d5a\u94b1\u7684\u4f60\u3002<\/p>\n<p>PHP \u51fd\u6570\u5141\u8bb8\u5bf9\u8c61\u7ee7\u627f\uff0c\u4f7f\u7528 extends \u5173\u952e\u5b57\u5b9e\u73b0\u3002\u5b50\u7c7b\u7ee7\u627f\u7236\u7c7b\u5c5e\u6027\u548c\u65b9\u6cd5\uff0c\u53ef\u4ee5\u8986\u76d6\u7236\u7c7b\u65b9\u6cd5\u6216\u6dfb\u52a0\u7279\u5b9a\u65b9\u6cd5\u548c\u5c5e\u6027\uff0c\u5b9e\u73b0\u591a\u5c42\u7ee7\u627f\u3002\u901a\u8fc7\u7ee7\u627f\uff0c\u53ef\u4ee5\u521b\u5efa\u5177\u6709\u73b0\u6709\u529f\u80fd\u7684\u65b0\u7c7b\uff0c\u6269\u5927\u9879\u76ee\u7075\u6d3b\u6027\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241026\/1729948877671ceccdc9e06.jpg\" class=\"aligncenter\" title=\"PHP \u51fd\u6570\u5982\u4f55\u5728 OOP \u4e2d\u4f7f\u7528\u5bf9\u8c61\u7ee7\u627f\uff1f\u63d2\u56fe\" alt=\"PHP \u51fd\u6570\u5982\u4f55\u5728 OOP \u4e2d\u4f7f\u7528\u5bf9\u8c61\u7ee7\u627f\uff1f\u63d2\u56fe\" \/><\/p>\n<h2>PHP \u51fd\u6570\u5982\u4f55\u5728 OOP \u4e2d\u4f7f\u7528\u5bf9\u8c61\u7ee7\u627f<\/h2>\n<p><strong>\u7b80\u4ecb<\/strong><\/p>\n<p>\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b (OOP) \u662f\u8f6f\u4ef6\u5f00\u53d1\u4e2d\u4e00\u79cd\u6d41\u884c\u8303\u4f8b\uff0c\u5b83\u57fa\u4e8e\u6982\u5ff5\uff0c\u5373\u7a0b\u5e8f\u7531\u5305\u542b\u5c5e\u6027\u548c\u65b9\u6cd5\u7684\u5bf9\u8c61\uff08\u73b0\u5b9e\u4e16\u754c\u5b9e\u4f53\u7684\u62bd\u8c61\uff09\u7ec4\u6210\u3002\u5bf9\u8c61\u7ee7\u627f\u5141\u8bb8\u4e00\u4e2a\u7c7b\u7ee7\u627f\u53e6\u4e00\u4e2a\u7c7b\u7684\u6240\u6709\u5c5e\u6027\u548c\u65b9\u6cd5\u3002\u8fd9\u5728\u9700\u8981\u6784\u5efa\u5177\u6709\u73b0\u6709\u529f\u80fd\u6216\u7c7b\u4f3c\u884c\u4e3a\u7684\u65b0\u7c7b\u65f6\u975e\u5e38\u6709\u7528\u3002<\/p>\n<p><strong>\u8bed\u6cd5<\/strong><\/p>\n<p>\u8981\u5728 PHP \u4e2d\u5b9e\u73b0\u7ee7\u627f\uff0c\u8bf7\u4f7f\u7528 <code>extends<\/code> \u5173\u952e\u5b57\uff1a<\/p>\n<pre>class ChildClass extends ParentClass {\n  \/\/ ...\n}<\/pre>\n<p>\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c<code>ChildClass<\/code> \u7ee7\u627f <code>ParentClass<\/code> \u4e2d\u5b9a\u4e49\u7684\u6240\u6709\u5c5e\u6027\u548c\u65b9\u6cd5\u3002<\/p>\n<p><strong>\u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n<p>\u8ba9\u6211\u4eec\u8003\u8651\u4e00\u4e2a\u793a\u4f8b\uff0c\u5176\u4e2d\u6211\u4eec\u6709\u4e00\u4e2a <code>Animal<\/code> \u7236\u7c7b\uff0c\u5177\u6709 <code>name<\/code> \u5c5e\u6027\u548c <code>eat()<\/code> \u65b9\u6cd5\u3002\u6211\u4eec\u521b\u5efa\u4e00\u4e2a <code>Dog<\/code> \u5b50\u7c7b\uff0c\u5b83\u4ece <code>Animal<\/code> \u7ee7\u627f\uff0c\u5e76\u6dfb\u52a0\u4e00\u4e2a\u7279\u5b9a\u7684 <code>bark()<\/code> \u65b9\u6cd5\uff1a<\/p>\n<pre>class Animal {\n  public $name;\n\n  public function eat() {\n    echo \"{$this-&gt;name} is eating.\";\n  }\n}\n\nclass Dog extends Animal {\n  public function bark() {\n    echo \"{$this-&gt;name} is barking.\";\n  }\n}\n\n\/\/ \u521b\u5efa\u4e00\u4e2a Dog \u5bf9\u8c61\n$dog = new Dog();\n$dog-&gt;name = \"Spot\";\n\n\/\/ \u8bbf\u95ee\u7ee7\u627f\u7684\u65b9\u6cd5\n$dog-&gt;eat(); \/\/ \u8f93\u51fa\uff1a\"Spot is eating.\"\n\n\/\/ \u8bbf\u95ee\u7279\u5b9a\u5b50\u7c7b\u65b9\u6cd5\n$dog-&gt;bark(); \/\/ \u8f93\u51fa\uff1a\"Spot is barking.\"<\/pre>\n<p>\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c<code>Dog<\/code> \u7c7b\u53ef\u4ee5\u8bbf\u95ee <code>Animal<\/code> \u7c7b\u7684\u6240\u6709\u7279\u6027\uff0c\u5e76\u6dfb\u52a0\u81ea\u5df1\u7684\u7279\u5b9a\u529f\u80fd\u3002<\/p>\n<p><strong>\u6ce8\u610f\u4e8b\u9879<\/strong><\/p>\n<ul>\n<li>\u5b50\u7c7b\u53ef\u4ee5\u8986\u76d6\u7236\u7c7b\u4e2d\u7684\u65b9\u6cd5\uff0c\u4ece\u800c\u63d0\u4f9b\u81ea\u5df1\u7684\u5b9e\u73b0\u3002<\/li>\n<li>\u5b50\u7c7b\u4e0d\u80fd\u8bbf\u95ee\u7236\u7c7b\u7684\u79c1\u6709\u5c5e\u6027\u6216\u65b9\u6cd5\u3002<\/li>\n<li>\u7c7b\u53ef\u4ee5\u591a\u5c42\u7ee7\u627f\uff0c\u5f62\u6210\u7ee7\u627f\u94fe\u3002<\/li>\n<\/ul>\n<p>\u6587\u4e2d\u5173\u4e8ephp,\u5bf9\u8c61\u7ee7\u627f\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\u5982\u4f55\u5728 OOP \u4e2d\u4f7f\u7528\u5bf9\u8c61\u7ee7\u627f\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\u5982\u4f55\u5728 OOP \u4e2d\u4f7f\u7528\u5bf9\u8c61\u7ee7\u627f\uff1f \u5728\u6587\u7ae0\u5b9e\u6218\u5f00\u53d1\u7684\u8fc7\u7a0b\u4e2d\uff0c\u6211\u4eec\u7ecf\u5e38\u4f1a\u9047\u5230\u4e00\u4e9b\u8fd9\u6837\u90a3\u6837\u7684\u95ee\u9898\uff0c\u7136\u540e\u8981\u5361\u597d\u534a\u5929\uff0c\u7b49\u95ee\u9898\u89e3\u51b3\u4e86\u624d\u53d1\u73b0\u539f\u6765\u4e00\u4e9b\u7ec6\u8282\u77e5\u8bc6\u70b9\u8fd8\u662f\u6ca1\u6709\u638c\u63e1\u597d\u3002\u4eca\u5929\u7c73\u4e91\u5c31\u6574\u7406\u5206\u4eab\u300aPHP \u51fd\u6570\u5982\u4f55\u5728 OOP \u4e2d\u4f7f\u7528\u5bf9\u8c61\u7ee7\u627f\uff1f\u300b\uff0c\u804a\u804a\uff0c\u5e0c\u671b\u53ef\u4ee5\u5e2e\u52a9\u5230\u6b63\u5728\u52aa\u529b\u8d5a\u94b1\u7684\u4f60\u3002 PHP \u51fd\u6570\u5141\u8bb8\u5bf9\u8c61\u7ee7\u627f\uff0c\u4f7f\u7528 extends \u5173\u952e\u5b57\u5b9e\u73b0\u3002\u5b50\u7c7b\u7ee7\u627f\u7236\u7c7b\u5c5e\u6027\u548c\u65b9\u6cd5\uff0c\u53ef\u4ee5\u8986\u76d6\u7236\u7c7b\u65b9\u6cd5\u6216\u6dfb\u52a0\u7279\u5b9a\u65b9\u6cd5\u548c\u5c5e\u6027\uff0c\u5b9e\u73b0\u591a\u5c42\u7ee7\u627f\u3002\u901a\u8fc7\u7ee7\u627f\uff0c\u53ef\u4ee5\u521b\u5efa\u5177\u6709\u73b0\u6709\u529f\u80fd\u7684\u65b0\u7c7b\uff0c\u6269\u5927\u9879\u76ee\u7075\u6d3b\u6027\u3002 PHP \u51fd\u6570\u5982\u4f55\u5728 OOP \u4e2d\u4f7f\u7528\u5bf9\u8c61\u7ee7\u627f \u7b80\u4ecb \u9762\u5411\u5bf9\u8c61\u7f16\u7a0b (OOP) \u662f\u8f6f\u4ef6\u5f00\u53d1\u4e2d\u4e00\u79cd\u6d41\u884c\u8303\u4f8b\uff0c\u5b83\u57fa\u4e8e\u6982\u5ff5\uff0c\u5373\u7a0b\u5e8f\u7531\u5305\u542b\u5c5e\u6027\u548c\u65b9\u6cd5\u7684\u5bf9\u8c61\uff08\u73b0\u5b9e\u4e16\u754c\u5b9e\u4f53\u7684\u62bd\u8c61\uff09\u7ec4\u6210\u3002\u5bf9\u8c61\u7ee7\u627f\u5141\u8bb8\u4e00\u4e2a\u7c7b\u7ee7\u627f\u53e6\u4e00\u4e2a\u7c7b\u7684\u6240\u6709\u5c5e\u6027\u548c\u65b9\u6cd5\u3002\u8fd9\u5728\u9700\u8981\u6784\u5efa\u5177\u6709\u73b0\u6709\u529f\u80fd\u6216\u7c7b\u4f3c\u884c\u4e3a\u7684\u65b0\u7c7b\u65f6\u975e\u5e38\u6709\u7528\u3002 \u8bed\u6cd5 \u8981\u5728 PHP \u4e2d\u5b9e\u73b0\u7ee7\u627f\uff0c\u8bf7\u4f7f\u7528 extends \u5173\u952e\u5b57\uff1a class ChildClass extends ParentClass { \/\/ &#8230; } \u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0cChildClass \u7ee7\u627f ParentClass \u4e2d\u5b9a\u4e49\u7684\u6240\u6709\u5c5e\u6027\u548c\u65b9\u6cd5\u3002 \u5b9e\u6218\u6848\u4f8b \u8ba9\u6211\u4eec\u8003\u8651\u4e00\u4e2a\u793a\u4f8b\uff0c\u5176\u4e2d\u6211\u4eec\u6709\u4e00\u4e2a Animal \u7236\u7c7b\uff0c\u5177\u6709 name \u5c5e\u6027\u548c eat() \u65b9\u6cd5\u3002\u6211\u4eec\u521b\u5efa\u4e00\u4e2a Dog \u5b50\u7c7b\uff0c\u5b83\u4ece Animal \u7ee7\u627f\uff0c\u5e76\u6dfb\u52a0\u4e00\u4e2a\u7279\u5b9a\u7684 bark() \u65b9\u6cd5\uff1a class Animal { [&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-48010","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/48010","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=48010"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/48010\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=48010"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=48010"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=48010"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}