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