3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array(); for($i=0;$i<10000;$i++) { $a = strtolower(strtoupper(implode(array_merge($a, range("a", "z")))));
Output for 5.4.0 - 5.4.11
Parse error: syntax error, unexpected end of file in /in/oE0Gu on line 3
Process exited with code 255.
Output for 5.3.0 - 5.3.21
Parse error: syntax error, unexpected $end in /in/oE0Gu on line 3
Process exited with code 255.
preferences:
202.34 ms | 1399 KiB | 41 Q