3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = 'M2ZWUHlYMmVFY01rMg=='; echo $str, "\n"; $str2 = base64_decode($str); echo $str2, "\n"; $str3 = strrev($str2); echo $str3, "\n"; $str4 = base64_decode($str3); echo bin2hex($str4), "\n"; $str4 = base64_decode($str3 . '='); echo $str4, "\n"; $str4 = base64_decode($str3 . '=='); echo $str4, "\n";
Output for 7.1.0 - 7.1.25, 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 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
M2ZWUHlYMmVFY01rMg== 3fVPyX2eEcMk2 2kMcEe2XyPVf3 da431c11ed97c8f55f �C��_ �C��_
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.30, 7.0.0 - 7.0.20
M2ZWUHlYMmVFY01rMg== 3fVPyX2eEcMk2 2kMcEe2XyPVf3 da431c11ed97c8f55f
preferences:
235.85 ms | 402 KiB | 302 Q