3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = array('abe','ben','cam'); foreach ($a as $k=>&$n) $n = strtoupper($n); foreach ($a as $k=>$n) // notice NO reference here! echo "$n\n"; print_r($a); ?>
Output for 5.0.0 - 7.1.0
ABE BEN BEN Array ( [0] => ABE [1] => BEN [2] => BEN )
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected '&', expecting T_VARIABLE or '$' in /in/MjbGm on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected '&', expecting T_VARIABLE or '$' in /in/MjbGm on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_VARIABLE' or `'$'' in /in/MjbGm on line 4
Process exited with code 255.