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                ~~~ // Static 靜態屬性 ,定義的靜態屬性,方法,可以不用new就可以調用,可以直接用類名::屬性/方法 // 類的內部,可以用self::屬性/方法,如果繼承的父類中也有同名的靜態屬性,調用父類中的靜態方法/屬性 需要用parent::屬性/方法 class a{ //定義一個靜態屬性 static $name = 2; //定義一個靜態方法 static public function cc(){ return 3 + self::$name; } } //調用方法 echo a::cc(); //調用屬性 echo a::$name; ~~~
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