php中 __call 与 __callStatic用法与区别详解
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2022-03-26 16:57:06
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php 5.3 后新增了 call 与callStatic 魔法方法。
call 当要调用的方法不存在或权限不足时,会自动调用call 方法。
callStatic 当调用的静态方法不存在或权限不足时,会自动调用callStatic方法。
call($funcname, $arguments) callStatic($funcname, $arguments)
参数说明:
$funcname String 调用的方法名称。
$arguments Array 调用方法时所带的参数。
call 例子
<?php class Member{ protected $memberdata = array(); public function call($func, $arguments){ list($type, $name) = explode('_', $func); if(!in_array($type, array('set','get')) || $name==''){ return ''; } switch($type){ case 'set': $this->memberdata[$name] = $arguments[0]; break; case 'get': return isset($this->memberdata[$name])? $this->memberdata[$name] : ''; break; default: } } } class User extends Member{ public function show(){ if($this->memberdata){ foreach($this->memberdata as $key=>$member){ echo $key.':'.$member.'<br>'; } } } } class Profession extends Member{ public function show(){ if($this->memberdata){ foreach($this->memberdata as $key=>$member){ echo $key.':'.$member.'<br>'; } } } } $userobj = new User(); $userobj->set_name('fdipzone'); $userobj->set_age(29); $userobj->show(); $probj = new Profession(); $probj->set_profession('IT SERVICE'); $probj->set_price(2500); $probj->show(); ?>
callStatic例子
<?php class Member{ protected static $memberdata = array(); public static function callStatic($func, $arguments){ list($type, $name) = explode('_', $func); if(!in_array($type, array('set','get')) || $name==''){ return ''; } $feature = get_called_class(); switch($type){ case 'set': self::$memberdata[$feature][$name] = $arguments[0]; break; case 'get': return isset(self::$memberdata[$feature][$name])? self::$memberdata[$feature][$name] : ''; break; default: } } } class User extends Member{ public static function show(){ $feature = get_called_class(); if(self::$memberdata[$feature]){ foreach(self::$memberdata[$feature] as $key=>$member){ echo $key.':'.$member.'<br>'; } } } } class Profession extends Member{ public static function show(){ $feature = get_called_class(); if(self::$memberdata[$feature]){ foreach(self::$memberdata[$feature] as $key=>$member){ echo $key.':'.$member.'<br>'; } } } } User::set_name('fdipzone'); User::set_age(29); User::show(); Profession::set_profession('IT SERVICE'); Profession::set_price(2500); Profession::show(); ?>
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