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       ÃæÏò¶ÔÏó±à³Ì(OOP,Object Oriented Programming)ÏÖÒѾ­³ÉΪ±à³ÌÈËÔ±µÄÒ»Ïî»ù±¾¼¼ÄÜ¡£ÀûÓÃOOPµÄ˼Ïë½øÐÐPHPµÄ¸ß¼¶±à³Ì£¬¶ÔÓÚÌá¸ßPHP±à³ÌÄÜÁ¦ºÍ¹æ»®web¿ª·¢¹¹¼Ü¶¼ÊǺÜÓÐÒâÒåµÄ¡£
PHP5¾­¹ýÖØÐ´ºó£¬¶ÔOOPµÄÖ§³Ö¶îÓÐÁ˺ܴóµÄ·ÉÔ¾£¬³ÉΪÁ˾߱¸Á˴󲿷ÖÃæÏò¶ÔÏóÓïÑÔµÄÌØÐÔµÄÓïÑÔ£¬±ÈPHP4ÓÐÁ˺ܶàµÄÃæÏò¶ÔÏóµÄÌØÐÔ¡£ÕâÀïÎÒÖ÷Ҫ̸µÄÊÇ this,self,parent Èý¸ö¹Ø¼ü×ÖÖ®¼äµÄÇø±ð¡£´Ó×ÖÃæÉÏÀ´Àí½â£¬·Ö±ðÊÇÖ¸ Õâ¡¢×Ô¼º¡¢¸¸Çס£Ïȳõ²½½âÊÍһϣ¬thisÊÇÖ¸Ïòµ±Ç°¶ÔÏóµÄÖ¸Õ루¿ÉÒÔ¿´³ÉCÀïÃæµÄÖ¸Õ룩£¬selfÊÇÖ¸Ïòµ±Ç°ÀàµÄÖ¸Õ룬parentÊÇÖ¸Ïò¸¸ÀàµÄÖ¸Õë¡£ÎÒÃÇÕâÀïÆµ·±Ê¹ÓÃÖ¸ÕëÀ´ÃèÊö£¬ÊÇÒòΪûÓиüºÃµÄÓïÑÔÀ´±í´ï¡£¹ØÓÚÖ¸ÕëµÄ¸ÅÄ´ó¼Ò¿ÉÒÔÈ¥²Î¿¼°Ù¿Æ¡£
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<?php
class name           //½¨Á¢ÁËÒ»¸öÃûΪnameµÄÀà
{
     private $name;          //¶¨ÒåÊôÐÔ£¬Ë½ÓÐ
     //¶¨Òå¹¹Ô캯Êý£¬ÓÃÓÚ³õʼ»¯¸³Öµ
     function __construct( $name )
     {
          $this->name = $name;         //ÕâÀïÒѾ­Ê¹ÓÃÁËthisÖ¸Õë Óï¾ä¢Ù
     }
     //Îö¹¹º¯Êý
     function __destruct(){}
     //´òÓ¡Óû§Ãû³ÉÔ±º¯Êý
     function printname()
     {
          print( $this->name );              //ÔÙ´ÎʹÓÃÁËthisÖ¸Õë Óï¾ä¢Ú£¬Ò²¿ÉÒÔʹÓÃechoÊä³ö
     }
}
$obj1 = new name( "PBPHome" );    //ʵÀý»¯¶ÔÏó Óï¾ä¢Û
//Ö´ÐдòÓ¡
$obj1->printname(); //Êä³ö: PBPHome
echo "<br>";                         &nbs


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