1--TEST-- 2Confirm difference between assigning new directly and by reference. 3--INI-- 4error_reporting=E_ALL | E_DEPRECATED 5--FILE-- 6<?php 7 echo "Compile-time strict error message should precede this.\n"; 8 9 class Inc 10 { 11 private static $counter = 0; 12 function __construct() 13 { 14 $this->id = ++Inc::$counter; 15 } 16 } 17 18 $f = new Inc(); 19 $k =& $f; 20 echo "\$f initially points to the first object:\n"; 21 var_dump($f); 22 23 echo "Assigning new object directly to \$k affects \$f:\n"; 24 $k = new Inc(); 25 var_dump($f); 26 27 echo "Assigning new object by ref to \$k removes it from \$f's reference set, so \$f is unchanged:\n"; 28 $k =& new Inc(); 29 var_dump($f); 30?> 31--EXPECTF-- 32Deprecated: Assigning the return value of new by reference is deprecated in %s on line 23 33Compile-time strict error message should precede this. 34$f initially points to the first object: 35object(Inc)#%d (1) { 36 ["id"]=> 37 int(1) 38} 39Assigning new object directly to $k affects $f: 40object(Inc)#%d (1) { 41 ["id"]=> 42 int(2) 43} 44Assigning new object by ref to $k removes it from $f's reference set, so $f is unchanged: 45object(Inc)#%d (1) { 46 ["id"]=> 47 int(2) 48} 49
