php类中的各种拦截器用法分析，php类拦截用法_PHP教程

class lanjie 
{ 
    function __get($name) 
    { 
        echo $name." property not found! "; 
    } 
} 

$ob = new lanjie(); 
echo $ob->g;

class person 
{ 
    private $_age; 
    private $_name; 
    function __set($name, $value) 
    { 
        $method = "set".  ucfirst($name); 
        echo $method; 
        if(method_exists($this, $method) ) 
        { 
            return $this->$method( $value ); 
        } 
    } 
     
    function setName( $name ) 
    { 
        $this->_name = $name; 
        if( !is_null($this->_name) ) 
        { 
            $this->_name = strtoupper($this->_name); 
        } 
    } 
    function setAge( $age ) 
    { 
        return $this->_age = (int)$age; 
    } 
} 
 
$p = new person(); 
$p->name = 'bob'; 
print_r( array( $p ) );