3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x = array('b', 'c', 'a'); ksort($x) echo $x[0];
Output for 5.4.0 - 5.4.21
Parse error: syntax error, unexpected 'echo' (T_ECHO) in /in/BHKs2 on line 4
Process exited with code 255.
Output for 5.3.0 - 5.3.27
Parse error: syntax error, unexpected T_ECHO in /in/BHKs2 on line 4
Process exited with code 255.
preferences:
178.3 ms | 1395 KiB | 57 Q