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PHP面向对象程序设计继承用法简单示例_php技巧_
2023-05-25
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简介 PHP面向对象程序设计继承用法简单示例_php技巧_
本文实例讲述了PHP面向对象程序设计继承用法。分享给大家供大家参考，具体如下：
name = $nameStr; echo "$this->name : ",self::$count," : parent : __construct
"; } function work(){ echo "$this->name is working
"; } function __destruct(){ echo "parent unset $this->name
"; } } class Managers extends Employees{ private $pos = null; function __construct($p,$nameStr){ parent::$count++; parent::__construct($nameStr); $this->pos = $p; echo "$this->name , $this->pos : self : __construct
"; } function assignJob(){ echo "$this->name assign jobs
"; } function getName(){ return $this->name; } function __destruct(){ echo "self unset $this->name
"; } } class Programmers extends Employees{ function code(){ echo "$this->name is coding
"; } function getName(){ return $this->name; } } $e1 = new Employees('e1'); $e2 = new MAnagers(2,'e2'); $e3 = new Programmers('e3'); $e1->work(); $e2->work(); $e3->work(); $e2->assignJob(); $e3->Code(); echo "{$e3->getName()}
"; //echo "$e1->name
"; if($e2 instanceof Employees){ echo "ok
"; }else{ echo "no
"; } unset($e1,$e2,$e3);
运行结果：
e1 : 0 : parent : __construct
e2 : 1 : parent : __construct
e2 , 2 : self : __construct
e3 : 1 : parent : __construct
e1 is working
e2 is working
e3 is working
e2 assign jobs
e3 is coding
e3
ok
parent unset e1
self unset e2
parent unset e3
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希望本文所述对大家PHP程序设计有所帮助。
