3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = array('test'); echo array_key_exists('test', $a['children');
Output for 5.3.0 - 5.6.28, 7.0.0 - 7.1.0
Parse error: syntax error, unexpected ')', expecting ']' in /in/N4hEY on line 5
Process exited with code 255.
Output for hhvm-3.10.0 - 3.12.0
Fatal error: syntax error, unexpected ')', expecting ']' in /in/N4hEY on line 5
Process exited with code 255.