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- --TEST--
- Foreach loop tests - modifying the object during the loop.
- --FILE--
- <?php
- class C {
- public $a = "Original a";
- public $b = "Original b";
- public $c = "Original c";
- protected $d = "Original d";
- private $e = "Original e";
- }
- echo "\nDirectly changing object values.\n";
- $obj = new C;
- foreach ($obj as $k=>$v) {
- $obj->$k="changed.$k";
- var_dump($v);
- }
- var_dump($obj);
- echo "\nModifying the foreach \$value.\n";
- $obj = new C;
- foreach ($obj as $k=>$v) {
- $v="changed.$k";
- }
- var_dump($obj);
- echo "\nModifying the foreach &\$value.\n";
- $obj = new C;
- foreach ($obj as $k=>&$v) {
- $v="changed.$k";
- }
- var_dump($obj);
- echo "\nAdding properties to an an object.\n";
- $obj = new C;
- $counter=0;
- foreach ($obj as $v) {
- $newPropName = "new$counter";
- $obj->$newPropName = "Added property $counter";
- if ($counter++>10) {
- echo "Loop detected\n";
- break;
- }
- var_dump($v);
- }
- var_dump($obj);
- echo "\nAdding properties to an an object, using &\$value.\n";
- $obj = new C;
- $counter=0;
- foreach ($obj as &$v) {
- $newPropName = "new$counter";
- $obj->$newPropName = "Added property $counter";
- if ($counter++>10) {
- echo "Loop detected\n";
- break;
- }
- var_dump($v);
- }
- var_dump($obj);
- echo "\nRemoving properties from an object.\n";
- $obj = new C;
- foreach ($obj as $v) {
- unset($obj->a);
- unset($obj->b);
- unset($obj->c);
- var_dump($v);
- }
- var_dump($obj);
- echo "\nRemoving properties from an object, using &\$value.\n";
- $obj = new C;
- foreach ($obj as &$v) {
- unset($obj->a);
- unset($obj->b);
- unset($obj->c);
- var_dump($v);
- }
- var_dump($obj);
- ?>
- --EXPECTF--
- Directly changing object values.
- string(10) "Original a"
- string(10) "Original b"
- string(10) "Original c"
- object(C)#%d (5) {
- ["a"]=>
- string(9) "changed.a"
- ["b"]=>
- string(9) "changed.b"
- ["c"]=>
- string(9) "changed.c"
- ["d":protected]=>
- string(10) "Original d"
- ["e":"C":private]=>
- string(10) "Original e"
- }
- Modifying the foreach $value.
- object(C)#%d (5) {
- ["a"]=>
- string(10) "Original a"
- ["b"]=>
- string(10) "Original b"
- ["c"]=>
- string(10) "Original c"
- ["d":protected]=>
- string(10) "Original d"
- ["e":"C":private]=>
- string(10) "Original e"
- }
- Modifying the foreach &$value.
- object(C)#%d (5) {
- ["a"]=>
- string(9) "changed.a"
- ["b"]=>
- string(9) "changed.b"
- ["c"]=>
- &string(9) "changed.c"
- ["d":protected]=>
- string(10) "Original d"
- ["e":"C":private]=>
- string(10) "Original e"
- }
- Adding properties to an an object.
- string(10) "Original a"
- string(10) "Original b"
- string(10) "Original c"
- string(16) "Added property 0"
- string(16) "Added property 1"
- string(16) "Added property 2"
- string(16) "Added property 3"
- string(16) "Added property 4"
- string(16) "Added property 5"
- string(16) "Added property 6"
- string(16) "Added property 7"
- Loop detected
- object(C)#%d (17) {
- ["a"]=>
- string(10) "Original a"
- ["b"]=>
- string(10) "Original b"
- ["c"]=>
- string(10) "Original c"
- ["d":protected]=>
- string(10) "Original d"
- ["e":"C":private]=>
- string(10) "Original e"
- ["new0"]=>
- string(16) "Added property 0"
- ["new1"]=>
- string(16) "Added property 1"
- ["new2"]=>
- string(16) "Added property 2"
- ["new3"]=>
- string(16) "Added property 3"
- ["new4"]=>
- string(16) "Added property 4"
- ["new5"]=>
- string(16) "Added property 5"
- ["new6"]=>
- string(16) "Added property 6"
- ["new7"]=>
- string(16) "Added property 7"
- ["new8"]=>
- string(16) "Added property 8"
- ["new9"]=>
- string(16) "Added property 9"
- ["new10"]=>
- string(17) "Added property 10"
- ["new11"]=>
- string(17) "Added property 11"
- }
- Adding properties to an an object, using &$value.
- string(10) "Original a"
- string(10) "Original b"
- string(10) "Original c"
- string(16) "Added property 0"
- string(16) "Added property 1"
- string(16) "Added property 2"
- string(16) "Added property 3"
- string(16) "Added property 4"
- string(16) "Added property 5"
- string(16) "Added property 6"
- string(16) "Added property 7"
- Loop detected
- object(C)#%d (17) {
- ["a"]=>
- string(10) "Original a"
- ["b"]=>
- string(10) "Original b"
- ["c"]=>
- string(10) "Original c"
- ["d":protected]=>
- string(10) "Original d"
- ["e":"C":private]=>
- string(10) "Original e"
- ["new0"]=>
- string(16) "Added property 0"
- ["new1"]=>
- string(16) "Added property 1"
- ["new2"]=>
- string(16) "Added property 2"
- ["new3"]=>
- string(16) "Added property 3"
- ["new4"]=>
- string(16) "Added property 4"
- ["new5"]=>
- string(16) "Added property 5"
- ["new6"]=>
- string(16) "Added property 6"
- ["new7"]=>
- string(16) "Added property 7"
- ["new8"]=>
- &string(16) "Added property 8"
- ["new9"]=>
- string(16) "Added property 9"
- ["new10"]=>
- string(17) "Added property 10"
- ["new11"]=>
- string(17) "Added property 11"
- }
- Removing properties from an object.
- string(10) "Original a"
- object(C)#%d (2) {
- ["d":protected]=>
- string(10) "Original d"
- ["e":"C":private]=>
- string(10) "Original e"
- }
- Removing properties from an object, using &$value.
- string(10) "Original a"
- object(C)#%d (2) {
- ["d":protected]=>
- string(10) "Original d"
- ["e":"C":private]=>
- string(10) "Original e"
- }
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