1--TEST-- 2Closure 039: Rebinding closures, change scope, same runtime type 3--FILE-- 4<?php 5 6class A { 7 private $x; 8 9 public function __construct($v) { 10 $this->x = $v; 11 } 12 13 public function getIncrementor() { 14 return function() { return ++$this->x; }; 15 } 16} 17class B extends A { 18 private $x; 19 public function __construct($v) { 20 parent::__construct($v); 21 $this->x = $v*2; 22 } 23} 24 25$a = new B(-5); 26$b = new B(10); 27 28$ca = $a->getIncrementor(); 29var_dump($ca()); 30 31echo "Testing with scope given as object", "\n"; 32 33$cb = $ca->bindTo($b, $b); 34$cb2 = Closure::bind($ca, $b, $b); 35var_dump($cb()); 36var_dump($cb2()); 37 38echo "Testing with scope as string", "\n"; 39 40$cb = $ca->bindTo($b, 'B'); 41$cb2 = Closure::bind($ca, $b, 'B'); 42var_dump($cb()); 43var_dump($cb2()); 44 45$cb = $ca->bindTo($b, NULL); 46var_dump($cb()); 47 48?> 49--EXPECTF-- 50int(-4) 51Testing with scope given as object 52int(21) 53int(22) 54Testing with scope as string 55int(23) 56int(24) 57 58Fatal error: Uncaught Error: Cannot access private property B::$x in %s:%d 59Stack trace: 60#0 %s(%d): Closure->{closure}() 61#1 {main} 62 thrown in %s on line %d 63
