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(1) this   
  
 class UserName   
 {   
     //¶¨ÒåÊôÐÔ      
     private $name;   
  
     //¶¨Òå¹¹Ô캯Êý   
     function __construct( $name )   
     {   
          $this->name = $name; //ÕâÀïÒѾ­Ê¹ÓÃÁËthisÖ¸Õë   
     }   
  
     //Îö¹¹º¯Êý   
     function __destruct(){}   
  
     //´òÓ¡Óû§Ãû³ÉÔ±º¯Êý   
     function printName()   
     {   
         print( $this->name ); //ÓÖʹÓÃÁËthisÖ¸Õë   
     }   
 }   
  
 //ʵÀý»¯¶ÔÏó   
 $nameObject = new UserName( "heiyeluren" );   
  
 //Ö´ÐдòÓ¡   
 $nameObject->printName(); //Êä³ö: heiyeluren   
  
 //µÚ¶þ´ÎʵÀý»¯¶ÔÏó   
 $nameObject2 = new UserName( "PHP5" );   
  
 //Ö´ÐдòÓ¡


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