1--TEST-- 2Ensure foreach splits the iterated entity from its cow reference set, for all sorts of iterated entities. 3--FILE-- 4<?php 5 6 echo "\n" . '$a' . "\n"; 7 $b = $a = array('original'); 8 foreach($a as $k=>&$v) { 9 $v = 'changed'; 10 } 11 var_dump($b); 12 unset($a, $b); 13 14 echo "\n" . '${\'a\'}' . "\n"; 15 $b = $a = array('original'); 16 foreach(${'a'} as $k=>&$v) { 17 $v = 'changed'; 18 } 19 var_dump($b); 20 unset($a, $b); 21 22 echo "\n" . '$$a' . "\n"; 23 $a = 'blah'; 24 $$a = array('original'); 25 $b = $$a; 26 foreach($$a as $k=>&$v) { 27 $v = 'changed'; 28 } 29 var_dump($b); 30 unset($a, $b); 31 32 echo "\n" . '$a[0]' . "\n"; 33 $b = $a[0] = array('original'); 34 foreach($a[0] as $k=>&$v) { 35 $v = 'changed'; 36 } 37 var_dump($b); 38 unset($a, $b); 39 40 echo "\n" . '$a[0][0]' . "\n"; 41 $b = $a[0][0] = array('original'); 42 foreach($a[0][0] as $k=>&$v) { 43 $v = 'changed'; 44 } 45 var_dump($b); 46 unset($a, $b); 47 48 echo "\n" . '$a->b' . "\n"; 49 $b = $a->b = array('original'); 50 foreach($a->b as $k=>&$v) { 51 $v = 'changed'; 52 } 53 var_dump($b); 54 unset($a, $b); 55 56 echo "\n" . '$a->b->c' . "\n"; 57 $b = $a->b->c = array('original'); 58 foreach($a->b as $k=>&$v) { 59 $v = 'changed'; 60 } 61 var_dump($b); 62 unset($a, $b); 63 64 echo "\n" . '$a->b[0]' . "\n"; 65 $b = $a->b[0] = array('original'); 66 foreach($a->b[0] as $k=>&$v) { 67 $v = 'changed'; 68 } 69 var_dump($b); 70 unset($a, $b); 71 72 echo "\n" . '$a->b[0][0]' . "\n"; 73 $b = $a->b[0][0] = array('original'); 74 foreach($a->b[0][0] as $k=>&$v) { 75 $v = 'changed'; 76 } 77 var_dump($b); 78 unset($a, $b); 79 80 echo "\n" . '$a->b[0]->c' . "\n"; 81 $b = $a->b[0]->c = array('original'); 82 foreach($a->b[0]->c as $k=>&$v) { 83 $v = 'changed'; 84 } 85 var_dump($b); 86 unset($a, $b); 87 88 class C { 89 public static $a; 90 } 91 92 echo "\n" . 'C::$a' . "\n"; 93 C::$a = array('original'); 94 $b = C::$a; 95 foreach(C::$a as $k=>&$v) { 96 $v = 'changed'; 97 } 98 var_dump($b); 99 unset($a, $b); 100 101 echo "\n" . 'C::$a[0]' . "\n"; 102 C::$a[0] = array('original'); 103 $b = C::$a[0]; 104 foreach(C::$a[0] as $k=>&$v) { 105 $v = 'changed'; 106 } 107 var_dump($b); 108 unset(C::$a[0], $b); 109 110 echo "\n" . 'C::$a[0]->b' . "\n"; 111 C::$a[0]->b = array('original'); 112 $b = C::$a[0]->b; 113 foreach(C::$a[0]->b as $k=>&$v) { 114 $v = 'changed'; 115 } 116 var_dump($b); 117 unset(C::$a[0]->b, $b); 118?> 119--EXPECTF-- 120$a 121array(1) { 122 [0]=> 123 string(8) "original" 124} 125 126${'a'} 127array(1) { 128 [0]=> 129 string(8) "original" 130} 131 132$$a 133array(1) { 134 [0]=> 135 string(8) "original" 136} 137 138$a[0] 139array(1) { 140 [0]=> 141 string(8) "original" 142} 143 144$a[0][0] 145array(1) { 146 [0]=> 147 string(8) "original" 148} 149 150$a->b 151 152Warning: Creating default object from empty value in %s on line %d 153array(1) { 154 [0]=> 155 string(8) "original" 156} 157 158$a->b->c 159 160Warning: Creating default object from empty value in %s on line %d 161 162Warning: Creating default object from empty value in %s on line %d 163array(1) { 164 [0]=> 165 string(8) "original" 166} 167 168$a->b[0] 169 170Warning: Creating default object from empty value in %s on line %d 171array(1) { 172 [0]=> 173 string(8) "original" 174} 175 176$a->b[0][0] 177 178Warning: Creating default object from empty value in %s on line %d 179array(1) { 180 [0]=> 181 string(8) "original" 182} 183 184$a->b[0]->c 185 186Warning: Creating default object from empty value in %s on line %d 187 188Warning: Creating default object from empty value in %s on line %d 189array(1) { 190 [0]=> 191 string(8) "original" 192} 193 194C::$a 195array(1) { 196 [0]=> 197 string(8) "original" 198} 199 200C::$a[0] 201array(1) { 202 [0]=> 203 string(8) "original" 204} 205 206C::$a[0]->b 207 208Warning: Creating default object from empty value in %s on line %d 209array(1) { 210 [0]=> 211 string(8) "original" 212} 213
