Cannot rebind scope of closure created from method

Description

When a closure is build from a method and an existing object, it is not possible to rebind it to another object.

Example

<?php

class X {
    function method () {}
}

class Y {}

$x = new X;
$fn = $x->method(...);
$ret = $fn->bindTo($x, Y::class);

?>

Alternatives

• To be rebound, the closure must be build from within the class.

Related error messages

• cannot-rebind-scope-of-closure-created-from-method,-this-will-be-an-error-in-php-9
• cannot-rebind-scope-of-closure-created-from-function,-this-will-be-an-error-in-php-9

In more recent PHP versions, this error message is now :ref:cannot-rebind-scope-of-closure-created-from-method,-this-will-be-an-error-in-php-9.