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Differences between php this, self and parent

巴扎黑
Release： 2016-11-21 13:31:40
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1、this是指向当前对象的指针
如：同class里面的其他函数可以用 this->函数名 调用。
2、self是指向当前类的指针
一般self使用来指向类中的静态变量，还要注意使用self来调用静态变量必须使用:: (域运算符号)
如：self::$firstCount;      //使用self来调用静态变量
3、parent是指向父类的指针
一般我们使用parent来调用父类的构造函数
如：parent::__construct( "PBPHome");    //使用parent调用了父类的构造函数
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Related labels：
php this self php this、self、parent区别
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