3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(base64_decode('V1RGPw==')); var_dump(base64_decode('V1=======================================RGPw')); var_dump(base64_decode('cD0xODY====mcz1jMTQ1OWQ4OCZmPTE'));
Output for 5.2.9 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.37, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 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 - 8.2.19, 8.3.0 - 8.3.7
string(4) "WTF?" string(4) "WTF?" string(20) "p=186&s=c1459d88&f=1"
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.8
string(4) "WTF?" string(1) "W" string(5) "p=186"
preferences:
250.37 ms | 402 KiB | 398 Q