3v4l.org

run code in 300+ PHP versions simultaneously
<?php $enc1 = base64_encode(181); $f = $enc1[array_rand(str_split($enc1))]; $s = $enc1[array_rand(str_split($enc1))]; $enc2 = base64_encode($f.$enc1.$s); $dec1 = base64_decode($enc2); $len = strlen($dec1); $dec2 = substr($dec1, 1, $len-2); $dec3 = base64_decode($dec2); echo $enc1."\n"; echo $enc2."\n"; echo "----\n"; echo $dec1."\n"; echo $dec2."\n"; echo $dec3."\n";

preferences:
33.66 ms | 402 KiB | 5 Q