{"id":1103,"date":"2015-09-16T10:43:10","date_gmt":"2015-09-16T02:43:10","guid":{"rendered":"http:\/\/hardihuang.info\/blog\/?p=1103"},"modified":"2018-01-25T10:59:15","modified_gmt":"2018-01-25T02:59:15","slug":"%e5%ad%a6%e4%b9%a0-php%e9%9d%a2%e5%90%91%e5%af%b9%e8%b1%a1","status":"publish","type":"post","link":"http:\/\/hardihuang.info\/blog\/?p=1103","title":{"rendered":"\u5b66\u4e60-php\u9762\u5411\u5bf9\u8c61"},"content":{"rendered":"

\u8fd9\u51e0\u5929\u5b66\u4e60php\u7684\u9762\u5411\u5bf9\u8c61\u601d\u60f3\uff0c\u590d\u4e60\u4e00\u4e0bjs\u7684object\u77e5\u8bc6,\u5bf9\u5b66\u4e60php\u7684class\u5e94\u8be5\u4f1a\u6709\u4e00\u5b9a\u7684\u5e2e\u52a9\uff0c\u8bf4\u5b9e\u8bdd\u5b66\u4e86\u4e24\u4e2a\u6708\u7684php,\u518d\u5199js\u4ee3\u7801\u597d\u522b\u626d\u7684\u8bf4,\u53d8\u91cf\u524d\u603b\u60f3\u52a0\u4e00\u4e2a$\uff0cconsole.log\u603b\u5199\u6210echo\u3000-_-!!!<\/p>\n

\u5728tutsplus\u770b\u4e86\u8fd9\u7bc7\u8bb2php\u9762\u5411\u5bf9\u8c61\u7684\u6587\u7ae0(http:\/\/t.cn\/RLsi5Dn<\/a>)\uff0c\u8bf4\u7684\u6bd4\u90a3\u4e9b\u89c6\u9891\u6559\u7a0b\u8981\u6e05\u695a\u4e9b\uff0c\u770b\u5b8c\u540e\u89c9\u5f97\u548cjs\u86ee\u50cf\u7684\uff0cphp\u7684class\u5c31\u76f8\u5f53\u4e8ejs\u7684constructor\uff0c\u7c7b\u4f3c\u76d6\u623f\u5b50\u524d\u753b\u7684\u84dd\u56fe\uff0cobject\u5c31\u662fjs\u91cc\u7684instance\uff0c\u662f\u6839\u636e\u84dd\u56fe\u76d6\u597d\u7684\u623f\u5b50\u672c\u8eab\uff0c\u50cfjs\u4e00\u6837\uff0cclass\u91cc\u4e5f\u6709properties\u548cmethods,\u3000class\u4e5f\u53ef\u4ee5inherit\u5176\u4ed6\u7684class\uff0e\u90a3\u4e9b\u770b\u8d77\u6765\u6709\u4e9b\u6655\u7684public protected private, ->, magic methods\u6bd4\u5982\u8bf4 __construct()\uff0c\u8fd8\u6709 parent::\u8fd9\u4e9b\uff0c\u5176\u5b9e\u90fd\u4e0d\u96be\uff0c\u5c31\u662f\u770b\u8d77\u6765\u6709\u4e9b\u5413\u4eba\uff0eok\u63a5\u4e0b\u6765\u5f00\u59cb\u770b\u4e00\u4e9b\u5b9e\u9645\u7684\u9762\u5411\u5bf9\u8c61\u6848\u4f8b\uff0c\u628a\u521a\u5b66\u5230\u7684\u77e5\u8bc6\u6d88\u5316\u6389\uff0e<\/p>\n

 <\/p>\n

\n

\u3010PHP-\u9762\u5411\u5bf9\u8c61 \u7b14\u8bb0\u3011<\/h1>\n

\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b\u662f\u4e00\u79cd\u5199\u4ee3\u7801\u7684\u65b9\u5f0f\uff0c\u5b83\u5141\u8bb8\u5f00\u53d1\u4eba\u5458\u4f7f\u7528class\u628a\u76f8\u4f3c\u7684\u4efb\u52a1\u5f52\u7c7b\u5728\u4e00\u8d77<\/em><\/p>\n

 <\/p>\n

1.class \u548c object\u5206\u522b\u662f\u4ec0\u4e48\uff1f<\/strong><\/p>\n

\u4e00\u4e2aclass\u5c31\u50cf\u662f\u4e00\u680b\u623f\u5b50\u7684\u84dd\u56fe\uff0c\u5b83\u628a\u8bbe\u8ba1\u5e08\u7684\u6784\u60f3\u753b\u5728\u7eb8\u4e0a\uff0c\u7136\u800c\u4ed6\u5e76\u4e0d\u662f\u4e00\u680b\u771f\u6b63\u7684\u623f\u5b50\uff1b<\/p>\n

\u4e00\u4e2aobject\uff0c\u5c31\u50cf\u662f\u6839\u636e\u8fd9\u5f20\u84dd\u56fe\u5efa\u9020\u51fa\u6765\u7684\u623f\u5b50\uff0cobject\u4e2d\u4fdd\u5b58\u7684\u6570\u636e\u5c31\u50cf\u662f\u7528\u6765\u5efa\u9020\u8fd9\u680b\u623f\u5b50\u7684\u6728\u6750\uff0c\u7535\u7ebf\uff0c\u6df7\u51dd\u571f…<\/p>\n

 <\/p>\n

2.\u5982\u4f55\u521b\u5efa\u4e00\u4e2aclass \u548c object\uff1f<\/strong>
\n<\/code><\/p>\n

\/\/\u4f7f\u7528 class + class\u540d\u5b57 \u6765\u521b\u5efa\u4e00\u5f20\u201c\u84dd\u56fe\u201d\uff08class\uff09\r\nclass MyClass\r\n\r\n{\r\n\/\/ Class properties and methods go here\r\n}\r\n\r\n\/\/\u4f7f\u7528 new+class\u540d\u5b57 \u6765\u6839\u636e\u201d\u84dd\u56fe\u201c\u521b\u5efa\u4e00\u4e2a\u771f\u6b63\u7684\u201d\u623f\u5b50\u201c\uff08object\uff09\uff0c\u5e76\u5c06\u5176\u8d4b\u7ed9\u4e00\u4e2a\u53d8\u91cf\r\n\r\n$obj = new MyClass;\r\n<\/pre>\n
3.\u4e3a class \u6dfb\u52a0 property<\/strong>
\n<\/code><\/p>\n
class MyClass\r\n{\r\n\r\n  \/\/\u4e3a MyClass \u6dfb\u52a0\u4e00\u4e2aproperty\r\n  public $prop1 = \"I'm a class property!\";\r\n}\r\n \r\n$obj = new MyClass;\r\n \r\n\r\n\/\/\u4f7f\u7528 \"->\" \u8f93\u51fa\u8fd9\u4e2a property\r\n\r\necho $obj->prop1;\r\n<\/pre>\n
 <\/p>\n
4.\u4e3a class \u6dfb\u52a0 method<\/strong>
\n<\/code><\/p>\n
class MyClass\r\n{\r\n  \/\/\u4e3a MyClass \u6dfb\u52a0\u4e00\u4e2a method,\u7528\u6765\u7ed9 $Prop1\u8d4b\u4e00\u4e2a\u65b0\u7684\u503c\r\n  public function setProperty($newval)\r\n  {\r\n\r\n      \/\/\u4f7f\u7528 $this \u6307\u4ee3\u8fd9\u4e2aclass\u672c\u8eab\r\n      $this->prop1 = $newval;\r\n  }\r\n\r\n  \r\n  \/\/\u4e3a MyClass \u6dfb\u52a0\u53e6\u4e00\u4e2a method\uff0c\u6765\u8f93\u51fa $property \u7684\u503c\r\n  public function getProperty()\r\n  {\r\n      return $this->prop1;\r\n  }\r\n}\r\n\r\n \r\n\r\n$obj = new MyClass;\r\n \r\n\r\n\/\/\u8c03\u7528 setProperty method\uff0c\u7ed9 $prop1\u8d4b\u4e00\u4e2a\u65b0\u7684\u503c\r\n\r\n$obj->setProperty(\"I'm a new property value!\");\r\n \r\n\r\n\/\/\u8c03\u7528 getProperty method\uff0c\u62ff\u5230\u5e76\u8f93\u51fa $prop1\u7684\u503c\r\necho $obj->getProperty();\r\n<\/pre>\n
 <\/p>\n
5.\u9762\u5411\u5bf9\u8c61\u4e2d\u7684\u00a0Magic methods \u662f\u4ec0\u4e48<\/strong><\/p>\n
\u4e3a\u4e86\u8ba9 object\u00a0\u4f7f\u7528\u8d77\u6765\u66f4\u65b9\u4fbf\uff0cphp \u63d0\u4f9b\u4e86\u4e00\u4e9b\u88ab\u53eb\u505a Magic method \u7684\u7279\u6b8a method\uff0c\u548c\u666e\u901amethod\u4e0d\u540c\u7684\u662f\uff0c\u5f53\u4e00\u4e9b\u52a8\u4f5c\u53d1\u751f\u65f6\uff0c\u4ed6\u4eec\u4f1a\u88ab\u81ea\u52a8\u6fc0\u6d3b\u3002
\n<\/code><\/p>\n
class MyClass\r\n{\r\n\r\n   \/\/ __construct()\uff0c\u5f53\u4e00\u4e2a\u65b0\u7684 object \u88ab\u521b\u5efa\u51fa\u6765\u7684\u65f6\u5019\u4f1a\u88ab\u6fc0\u6d3b\r\n  public function __construct()\r\n  {\r\n\r\n      \/\/ __CLASS__ \u4ee3\u8868\u5f53\u524d class \u7684\u540d\u5b57\r\n      echo 'The class \"', __CLASS__, '\" was initiated!';\r\n  }\r\n \r\n\r\n  \/\/ __destruct()\uff0c\u5f53\u4e00\u4e2aobject\u88ab\u9500\u6bc1\u7684\u65f6\u5019\u4f1a\u88ab\u6fc0\u6d3b\r\n  public function __destruct()\r\n   {\r\n      echo 'The class \"', __CLASS__, '\" was destroyed.';\r\n   }\r\n\r\n   \r\n\r\n  \/\/ __toString()\uff0c\u5f53\u76f4\u63a5 echo \u4e00\u4e2a  object \u7684\u65f6\u5019\u4f1a\u88ab\u6fc0\u6d3b\uff0c\u5982\u679c\u6ca1\u6709\u8fd9\u4e2a __toString() magic method\uff0c\u76f4\u63a5\u5c06\u4e00\u4e2a object \u4ee5 string \u7684\u5f62\u5f0f\u8f93\u51fa\u4f1a\u62a5\u9519\r\n\r\n  public function __toString()\r\n    {\r\n        echo \"Using the toString method: \";\r\n        return $this->getProperty();\r\n    }\r\n\r\n}\r\n<\/pre>\n
 <\/p>\n
6. class \u7684\u7ee7\u627f<\/strong><\/p>\n
\u4e00\u4e2a class \u53ef\u4ee5\u4ece\u5176\u4ed6\u7684 class \u90a3\u91cc\u201c\u7ee7\u627f\u201d method \u548c property\uff0c\u65b0\u5efa\u53e6\u4e00\u4e2a class \u65f6\u4f7f\u7528 extends + \u8981\u7ee7\u627f\u7684class\u540d\u5b57 \u5373\u53ef<\/p>\n
<\/code><\/p>\n
\/\/\u521b\u5efa\u4e00\u4e2aclass\r\nclass MyClass\r\n{\r\n  public $prop1 = \"I'm a class property!\";\r\n}\r\n \r\n\r\n\/\/\u521b\u5efa\u53e6\u4e00\u4e2a class\uff0c\u5e76\u4f7f\u7528 extends \u7ee7\u627f MyClass\r\nclass MyOtherClass extends MyClass\r\n{\r\n  public function newMethod()\r\n  {\r\n      echo \"From a new method in \" . __CLASS__ . \".\r\n\";\r\n  }\r\n}\r\n \r\n\r\n \r\n\r\n\/\/\u521b\u5efa\u4e00\u4e2a MyOtherClass \u7684 object\r\n\r\n$newobj = new MyOtherClass;\r\n\r\n\/\/\u8f93\u51fa\u4e00\u4e2a MyOtherClass \u91cc\u5e76\u6ca1\u6709\u7684 property\uff0c\u4f46\u7531\u4e8e\u5b83\u7ee7\u627f\u4e86 MyClass\uff0c\u6240\u4ee5php\u53d1\u73b0\u5b83\u6ca1\u6709\u4fbf\u4f1a\u518d\u53bb MyClass \u91cc\u627e\uff0c\u627e\u5230\u540e\u5c31\u4f1a\u6b63\u786e\u663e\u793a\u51fa\u6765\uff0c\u82e5\u8fd8\u6ca1\u6709\u624d\u4f1a\u62a5\u9519\r\n\r\necho $newobj->prop1;\r\n<\/pre>\n
 <\/p>\n
7.\u8986\u5199\u7ee7\u627f\u8fc7\u6765\u7684 properties \u4ee5\u53ca\u00a0methods<\/strong><\/p>\n
\u5728\u65b0\u7684 class \u4e2d\u91cd\u65b0\u58f0\u660e\u4e00\u904d\u4e00\u4e2a\u7ee7\u627f\u8fc7\u6765\u7684 property \u6216 method \u4fbf\u53ef\u5c06\u5176\u8986\u5199\u3002<\/p>\n
<\/code><\/p>\n
class MyClass\r\n{\r\n  public $prop1 = \"I'm a class property!\";\r\n}\r\n \r\n\r\nclass MyOtherClass extends MyClass\r\n{\r\n  public $prop1 = \"I'm from the new class!\";\r\n}\r\n\r\n \r\n\r\n$newobj = new MyOtherClass;\r\n\r\n\/\/\u7531\u4e8e\u5728MyOtherClass\u4e2d\u5df2\u7ecf\u8bb2 $prop1\u8986\u5199\uff0c\u6240\u4ee5\u6b64\u65f6 echo \u51fa\u7684 prop1\u7684\u7ed3\u679c\u4e3a\"I'm from the new class!\"\r\n\r\necho $newobj->prop1;\r\n<\/pre>\n
 <\/p>\n
\u5728\u4fdd\u7559\u7ee7\u627f\u4e0b\u6765\u7684\u539f method \u57fa\u7840\u4e0a\u518d\u5c06\u5176\u8986\u5199\uff0c\u53ea\u9700\u4f7f\u7528 parent:: \u540e\u5373\u53ef<\/p>\n
<\/code><\/p>\n
class MyClass\r\n{\r\n\r\npublic function __construct()\r\n\r\n  {\r\n      echo 'The class \"', __CLASS__, '\" was initiated!';\r\n  }\r\n}\r\n \r\n\r\nclass MyOtherClass extends MyClass\r\n{\r\n\r\n public function __construct()\r\n  {\r\n      parent::__construct(); \r\n      echo \"A new constructor in \" . __CLASS__ . \".\";\r\n  }\r\n\r\n}\r\n\r\n \r\n\r\n\/**\r\n\r\n*\u9875\u9762\u4e0a\u6700\u7ec8\u663e\u793a\u7684\u4fe1\u606f\u5219\u4f1a\u662f\uff1a\r\n\r\n*The class \"MyClass\" was initiated!\r\n*A new constructor in MyOtherClass.\r\n\r\n*\/\r\n<\/pre>\n
 <\/p>\n
8.\u4e3a property \u548c method \u8bbe\u7f6e\u53ef\u89c1\u6027<\/strong><\/p>\n
\u4e3a\u4e86\u66f4\u597d\u7684\u63a7\u5236\u6bcf\u4e2a property \u548c method\uff0c\u4ed6\u4eec\u5728\u58f0\u660e\u65f6\u9700\u8981\u88ab\u8d4b\u4e88\u53ef\u89c1\u6027\uff0c\u53ef\u89c1\u6027\u63a7\u5236\u7740\u8be5 property \u6216 method \u4ece\u4ec0\u4e48\u8303\u56f4\u5185\u80fd\u88ab\u83b7\u53d6\u5230\uff0c<\/p>\n
<\/code><\/p>\n
\/ public:\u6743\u9650\u662f\u6700\u5927\u7684\uff0c\u53ef\u4ee5 class \u5185\u90e8\u8c03\u7528\uff0c\u6216 object \u8c03\u7528\u7b49\u3002\r\n\r\n\/\/ protected: \u53d7\u4fdd\u62a4\u7c7b\u578b\uff0c\u7528\u4e8e\u5728\u5f53\u524d class \u5185\u6216\u7ee7\u627f\u7684 class \u4e2d\u8c03\u7528\u3002\r\n\r\n\/\/ private: \u79c1\u6709\u7c7b\u578b\uff0c\u53ea\u6709\u5728\u5f53\u524d class \u5185\u90e8\u624d\u80fd\u8c03\u7528\u3002\r\n\r\n\/\/static: \u4e0d\u9700\u8981\u4e3a class \u58f0\u660e\u4e00\u4e2a object \u5c31\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528 class \u540d\u5b57+:: \u8c03\u7528\r\n\r\n\r\nclass MyClass\r\n{\r\n\r\n public static $num = 10;\r\n\r\n}\r\n\r\n echo MyClass::$num\uff1b\r\n<\/pre>\n
 <\/p>\n
\u539f\u6587\u94fe\u63a5\uff1ahttp:\/\/code.tutsplus.com\/tutorials\/object-oriented-php-for-beginners–net-12762<\/p>\n","protected":false},"excerpt":{"rendered":"
\u8fd9\u51e0\u5929\u5b66\u4e60php\u7684\u9762\u5411\u5bf9\u8c61\u601d\u60f3\uff0c\u590d\u4e60\u4e00\u4e0bjs\u7684object\u77e5\u8bc6,\u5bf9\u5b66\u4e60php\u7684class\u5e94\u8be5\u4f1a\u6709\u4e00\u5b9a\u7684\u5e2e\u52a9\uff0c\u8bf4\u5b9e\u8bdd\u5b66\u4e86\u4e24\u4e2a\u6708\u7684php,\u518d\u5199js\u4ee3\u7801\u597d\u522b\u626d\u7684\u8bf4,\u53d8\u91cf\u524d\u603b\u60f3\u52a0\u4e00\u4e2a$\uff0cconsole.log\u603b\u5199\u6210echo\u3000-_-!!!<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[15],"tags":[],"_links":{"self":[{"href":"http:\/\/hardihuang.info\/blog\/index.php?rest_route=\/wp\/v2\/posts\/1103"}],"collection":[{"href":"http:\/\/hardihuang.info\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/hardihuang.info\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/hardihuang.info\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/hardihuang.info\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1103"}],"version-history":[{"count":5,"href":"http:\/\/hardihuang.info\/blog\/index.php?rest_route=\/wp\/v2\/posts\/1103\/revisions"}],"predecessor-version":[{"id":1114,"href":"http:\/\/hardihuang.info\/blog\/index.php?rest_route=\/wp\/v2\/posts\/1103\/revisions\/1114"}],"wp:attachment":[{"href":"http:\/\/hardihuang.info\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1103"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/hardihuang.info\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1103"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/hardihuang.info\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1103"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}