3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = [23, 21, 83, 195, 1, 293]; usort($a, function($v1, $v2) { return $v1 <=> $v2; })
Output for 7.0.0 - 7.0.1
Parse error: syntax error, unexpected end of file in /in/tKOnW on line 7
Process exited with code 255.
Output for 5.4.11 - 5.6.16
Parse error: syntax error, unexpected '>' in /in/tKOnW on line 6
Process exited with code 255.
Output for 5.3.21 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/tKOnW on line 3
Process exited with code 255.