3v4l.org

run code in 300+ PHP versions simultaneously
<?php $string = $_POST['string']; preg_replace("/[^0-9a-zA-Z ]/", "", $string { echo "You can't have any symbols in your username."; } else { echo "Nice string!"; }
Output for 5.4.0 - 5.4.30
Parse error: syntax error, unexpected 'echo' (T_ECHO) in /in/hDWnf on line 4
Process exited with code 255.
Output for 5.3.0 - 5.3.28
Parse error: syntax error, unexpected T_ECHO in /in/hDWnf on line 4
Process exited with code 255.
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186.52 ms | 1395 KiB | 67 Q