1--TEST-- 2Ensure object comparison property order remains consistent 3--FILE-- 4<?php 5 6// PHP4-5.3 object semantics had child properties added to an 7// object HashTable first, then parent, then grandparent, etc... 8// As of PHP 5.4 we use a packed C array to hold properties 9// which may or may not share the same ordering. 10// In the code snippet below, the print_r() has the side-effect 11// of materializing the properties shadow HashTable which 12// if used for comparison, results in the behavior consistent 13// with pre PHP-5.4. 14// This test ensures that the first comparison yields the same 15// result without shadow table materialization. 16 17class A { public $a; } 18class B extends A { public $b; } 19$a = new B(); $a->a = 0; $a->b = 1; 20$b = new B(); $b->a = 1; $b->b = 0; 21 22var_dump($a < $b); 23print_r($a, true); 24var_dump($a < $b); 25--EXPECT-- 26bool(false) 27bool(false) 28
