3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a= array('2','3'); $b= array('4'); $a = array_merge($a,$b) print_r($a);
Output for 5.4.0 - 5.4.15
Parse error: syntax error, unexpected 'print_r' (T_STRING) in /in/hvn5k on line 5
Process exited with code 255.
Output for 5.3.0 - 5.3.25
Parse error: syntax error, unexpected T_STRING in /in/hvn5k on line 5
Process exited with code 255.