3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array(); for($i=0;$i<10000;$i++) { $a = strtolower(strtoupper(array_merge($a, range("a", "z"))));
Output for 5.4.0 - 5.4.11
Parse error: syntax error, unexpected end of file in 61Ytk on line 3
Process exited with code 255.
Output for 5.3.0 - 5.3.21
Parse error: syntax error, unexpected $end in 61Ytk on line 3
Process exited with code 255.
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168.32 ms | 1395 KiB | 41 Q