3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a1=array(); unset $a1; $a2=array(34,67); $e=array_merge($a1,$a2); print_r($e); ?>
Output for 5.4.0 - 5.4.27
Parse error: syntax error, unexpected '$a1' (T_VARIABLE), expecting '(' in /in/6LCXU on line 3
Process exited with code 255.
Output for 5.3.0 - 5.3.28
Parse error: syntax error, unexpected T_VARIABLE, expecting '(' in /in/6LCXU on line 3
Process exited with code 255.