3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $ids = array('1234', '5678'); foreach ($ids as &$id) { $id = (int)$id; } var_dump($ids); foreach ($ids as $id) { var_dump($id); } var_dump($ids);
Output for 5.2.1 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
array(2) { [0]=> int(1234) [1]=> &int(5678) } int(1234) int(1234) array(2) { [0]=> int(1234) [1]=> &int(1234) }
Output for 5.0.0 - 5.2.0
array(2) { [0]=> &int(1234) [1]=> &int(5678) } int(1234) int(1234) array(2) { [0]=> int(1234) [1]=> &int(1234) }
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected '&', expecting T_VARIABLE or '$' in /in/2BJbc on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected '&', expecting T_VARIABLE or '$' in /in/2BJbc on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_VARIABLE' or `'$'' in /in/2BJbc on line 3
Process exited with code 255.