3v4l.org

run code in 500+ PHP versions simultaneously
<?php echo base64_encode('hBGfAbhaAUdvUoMiR6gvOw=='); echo base64_decode("");
Output for 8.2.31, 8.3.0 - 8.3.31, 8.4.1 - 8.4.22, 8.5.0 - 8.5.7
aEJHZkFiaGFBVWR2VW9NaVI2Z3ZPdz09
preferences:
51.83 ms | 748 KiB | 4 Q