3v4l.org

run code in 300+ PHP versions simultaneously
<?php foreach (range(1,1000) as $int) { echo "{$int}: TRIMMED:" . (base64_decode(trim('=', base64_encode($int))) === $int ? 'Pass' : 'Fail') . " UNTRIMMED: " (base64_decode(base64_encode($int)) === $int ? 'Pass' : 'Fail') . "\n"; }

preferences:
38.89 ms | 402 KiB | 5 Q