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run code in 150+ php & hhvm versions
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<?php class Bla extends RecursiveFilterIterator { public function accept() { echo "Accept: "; var_dump(parent::current()); return true; } } $rArrayIterator = new RecursiveArrayIterator(array('test1', array('tet3', 'test4', 'test5'))); $bla = new Bla($rArrayIterator); foreach ($bla as $key1 => $value1) { if ($bla->hasChildren()) { foreach ($bla->getChildren() as $value) { var_dump($value); } } else { echo "no children\n"; } }
Output for 5.1.3 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
Accept: string(5) "test1" no children Accept: array(3) { [0]=> string(4) "tet3" [1]=> string(5) "test4" [2]=> string(5) "test5" } Accept: string(4) "tet3" string(4) "tet3" Accept: string(5) "test4" string(5) "test4" Accept: string(5) "test5" string(5) "test5"
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.1.0 - 5.1.2
Accept: string(5) "test1" no children Accept: array(3) { [0]=> string(4) "tet3" [1]=> string(5) "test4" [2]=> string(5) "test5" }
Output for 5.0.0 - 5.0.5
Fatal error: Class 'RecursiveFilterIterator' not found in /in/9465L on line 3
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/9465L on line 5
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/9465L on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/9465L on line 5
Process exited with code 255.