1--TEST-- 2Unsetting and recreating private properties. 3--FILE-- 4<?php 5class C { 6 private $p = 'test'; 7 function unsetPrivate() { 8 unset($this->p); 9 } 10 function setPrivate() { 11 $this->p = 'changed'; 12 } 13} 14 15class D extends C { 16 function setP() { 17 $this->p = 'changed in D'; 18 } 19} 20 21echo "Unset and recreate a superclass's private property:\n"; 22$d = new D; 23$d->unsetPrivate(); 24$d->setPrivate(); 25var_dump($d); 26 27echo "\nUnset superclass's private property, and recreate it as public in subclass:\n"; 28$d = new D; 29$d->unsetPrivate(); 30$d->setP(); 31var_dump($d); 32 33echo "\nUnset superclass's private property, and recreate it as public at global scope:\n"; 34$d = new D; 35$d->unsetPrivate(); 36$d->p = 'this will create a public property'; 37var_dump($d); 38 39 40echo "\n\nUnset and recreate a private property:\n"; 41$c = new C; 42$c->unsetPrivate(); 43$c->setPrivate(); 44var_dump($c); 45 46echo "\nUnset a private property, and attempt to recreate at global scope (expecting failure):\n"; 47$c = new C; 48$c->unsetPrivate(); 49$c->p = 'this will fail'; 50var_dump($c); 51?> 52==Done== 53--EXPECTF-- 54Unset and recreate a superclass's private property: 55object(D)#%d (1) { 56 ["p":"C":private]=> 57 string(7) "changed" 58} 59 60Unset superclass's private property, and recreate it as public in subclass: 61object(D)#%d (1) { 62 ["p"]=> 63 string(12) "changed in D" 64} 65 66Unset superclass's private property, and recreate it as public at global scope: 67object(D)#%d (1) { 68 ["p"]=> 69 string(34) "this will create a public property" 70} 71 72 73Unset and recreate a private property: 74object(C)#%d (1) { 75 ["p":"C":private]=> 76 string(7) "changed" 77} 78 79Unset a private property, and attempt to recreate at global scope (expecting failure): 80 81Fatal error: Uncaught Error: Cannot access private property C::$p in %s:46 82Stack trace: 83#0 {main} 84 thrown in %s on line 46 85