3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = array(7, NAN, 3,); sort(&$arr); var_dump($arr);
Output for 7.0.0 - 7.0.2
Parse error: syntax error, unexpected '&' in /in/X4lgZ on line 4
Process exited with code 255.
Output for 5.5.24 - 5.5.31, 5.6.8 - 5.6.17
Fatal error: Call-time pass-by-reference has been removed in /in/X4lgZ on line 4
Process exited with code 255.
preferences:
163.92 ms | 1395 KiB | 28 Q