不要将$ this传递给匿名函数的范围(Do not pass $this into scope of an anonymous function)

不要将$ this传递给匿名函数的范围(Do not pass $this into scope of an anonymous function)

有没有办法不将类传递给匿名函数？

class Foo{ public function bar(){ $data = [ 'calculation' => function(){ // I don't want $this to be passed into here } ]; } }

我可以从匿名函数中排除$ this吗？

Is there a way to not pass the class into an anonymous function?

class Foo{ public function bar(){ $data = [ 'calculation' => function(){ // I don't want $this to be passed into here } ]; } }

Can i exclude $this from that anonymous function?

最满意答案

如果你不想要$this的值，你需要一个静态匿名函数 。

class Foo{ public function bar(){ $data = [ 'calculation' => static function(){ // $this is not defined } ]; } }

静态匿名函数没有自动绑定的$this值，并且以后不能将其他值绑定到它们。

If you don't want a value for $this, you want a static anonymous function.

class Foo{ public function bar(){ $data = [ 'calculation' => static function(){ // $this is not defined } ]; } }

Static anonymous functions do not have a $this value automatically bound and they cannot have another value bound to them later on.