3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = array(1, 2, 3, 4, 'a', 'b'); foreach ($a as $key => &$value) { $value *= 2; } unset($value); print_r($a);
Output for 7.1.0
Warning: A non-numeric value encountered in /in/PgLor on line 4 Warning: A non-numeric value encountered in /in/PgLor on line 4 Array ( [0] => 2 [1] => 4 [2] => 6 [3] => 8 [4] => 0 [5] => 0 )
Output for 5.0.0 - 7.0.14
Array ( [0] => 2 [1] => 4 [2] => 6 [3] => 8 [4] => 0 [5] => 0 )
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected '&', expecting T_VARIABLE or '$' in /in/PgLor 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 '$' in /in/PgLor on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_VARIABLE' or `'$'' in /in/PgLor on line 3
Process exited with code 255.