3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = array(0, 1); foreach ($a as &$x) {} unset($x); $b = $a; $b[0] = 999; var_dump($a[0]);
Output for 5.2.1 - 7.1.0
int(0)
Output for 5.0.0 - 5.2.0
int(999)
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected '&', expecting T_VARIABLE or '$' in /in/Cra1O on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected '&', expecting T_VARIABLE or '$' in /in/Cra1O 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/Cra1O on line 3
Process exited with code 255.