3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo bin2hex(strrev(base64_encode(123456789))); $str = "3d3d516343746d4d6d6c31566956336"; echo $str; $b64 = base64_decode($str);
Output for 7.0.0 - 7.0.31, 7.1.0 - 7.1.21, 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 - 8.1.30, 8.2.0 - 8.2.25, 8.3.0 - 8.3.13
35677a4e3255444e7a49544d3d3d516343746d4d6d6c31566956336
preferences:
39.7 ms | 407 KiB | 5 Q