3v4l.org

run code in 300+ PHP versions simultaneously
<?php $enc1 = base64_encode(181); $enc2 = base64_encode('M'.$enc1.'T'); $dec1 = base64_decode($enc2); $len = strlen($dec1); $dec2 = substr($dec1, 1, $len-2); $dec3 = base64_decode($dec2); echo "\n".$dec3;

preferences:
53.92 ms | 402 KiB | 5 Q