3v4l.org

run code in 300+ PHP versions simultaneously
<?php $QUERYSTRING = "test.php?lol=.EPS"; $changes = -1; do {$changes++; $a = $QUERYSTRING; $QUERYSTRING = str_replace(array('..', '~', chr(0), ':', '?'), '', $QUERYSTRING); } while ($a != $QUERYSTRING); echo $QUERYSTRING . "\n"; echo $changes . "\n"; if( ($changes > 0) || (substr(strtolower($QUERYSTRING), -3) != ".ai") && (substr(strtolower($QUERYSTRING), -4) != ".eps")) { echo "not allowed"; } else { echo "allowed"; }
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
test.phplol=.EPS 1 not allowed

preferences:
285.64 ms | 405 KiB | 455 Q