PHP:是否可以从特征静态方法中使用特征获取类的名称? [英] PHP: Is it possible to get the name of the class using the trait from within a trait static method?

问题描述

可以从属于该 trait 的静态方法中确定使用 trait 的类的名称吗?

Can the name of a class using a trait be determined from within a static method belonging to that trait?

例如:

trait SomeAbility {
    public static function theClass(){
        return <name of class using the trait>;
    }
}

class SomeThing {
    use SomeAbility;
    ...
}

获取类名:

$class_name = SomeThing::theClass();

我的直觉是，可能不是.我找不到任何其他暗示的东西.

My hunch is, probably not. I haven't been able to find anything that suggests otherwise.

推荐答案

使用 使用 static 进行后期静态绑定:

Use late static binding with static:

trait SomeAbility {
    public static function theClass(){
        return static::class;
    }
}

class SomeThing {
    use SomeAbility;
}

class SomeOtherThing {
    use SomeAbility;
}

var_dump(
    SomeThing::theClass(),
    SomeOtherThing::theClass()
);

// string(9) "SomeThing"
// string(14) "SomeOtherThing"

https://3v4l.org/mfKYM

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