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 $str4, "\n"; $str4 = base64_decode($str3 . '='); echo $str4, "\n"; $str4 = base64_decode($str3 . '=='); echo $str4, "\n";
Output for 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 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 - 8.3.4, 8.3.6
M2ZWUHlYMmVFY01rMg== 3fVPyX2eEcMk2 2kMcEe2XyPVf3 �C��_ �C��_ �C��_
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 M2ZWUHlYMmVFY01rMg== 3fVPyX2eEcMk2 2kMcEe2XyPVf3 �C��_ �C��_ �C��_
Output for 5.4.2 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20
M2ZWUHlYMmVFY01rMg== 3fVPyX2eEcMk2 2kMcEe2XyPVf3 �C��_
preferences:
170.13 ms | 402 KiB | 228 Q