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? ??? ?? PHP ???? PHP 5 ?? ?? ??????? `self`? `$this`? ???? ??????

PHP 5 ?? ?? ??????? `self`? `$this`? ???? ??????

Dec 17, 2024 pm 04:26 PM

What's the Difference Between `self` and `$this` in PHP 5 Object-Oriented Programming?

PHP 5?? 'self'? '$this'? ??? ??

PHP 5?? ?? ?? ?????? ??? ?, 'self'? '$this'? ????? ???? ?? ???? ???? ?? ?????. ? ? ????? ?? ?? ???? ?? ?? ??? ?????.

'$this' - ?? ?? ??

??? ??? ?????? '$this'? ?????. ??? ?? ???? ?? ?? ? ???. ??????? ?? ??? ?? ???? ???? ?????. '$this->member' ??? ???? ??? ??? ???? ? ?? ?? '$this->method()'? ???? ???? ?????.

?:

class Person {
    private $name;

    public function __construct($name) {
        $this->name = $name;
    }

    public function getName() {
        return $this->name;
    }
}

? ??? '$this'? 'Person' ?? 'name' ??? 'getName()' ???? ????? ? ?????. object.

'self' - ?? ??? ??

??? 'self'? ?? ??? ?? ?? ?? ? ???? ????? ? ?????. ?? ???? ?? ????? ?? ??? ??? ?????. 'self::$static_member' ??? ???? ?? ??? ???? ? ??? 'self::static_method()'? ??? ???? ?????.

?:

class StaticCounter {
    private static $count = 0;

    public static function incrementCount() {
        self::$count++;
    }

    public static function getCount() {
        return self::$count;
    }
}

??? 'self'? 'StaticCounter' ?? ?? 'count' ??? 'incrementCount()' ??? ???? ????? ? ?????. class.

??

'self'? '$this'? ??? ???? ???? ?? PHP 5? ???? ?? ?? ?????? ??????. '$this' ?? ??? ??? ??? ???? ?? ?? 'self'? ?? ???? ?? ??? ??? ????. ??? ???? ???? ??? ? ??? ??? ? ?? ???? ??? ???? ? ????.

? ??? PHP 5 ?? ?? ??????? `self`? `$this`? ???? ??????? ?? ?????. ??? ??? PHP ??? ????? ?? ?? ??? ?????!

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