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<?php print bin2hex(strrev(base64_encode("3d3d516343746d4d6d6c315669563362"))); print hex2bin(strrev(base64_decode("3d3d516343746d4d6d6c315669563362")));
Output for 5.5.1 - 5.5.36, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.31, 7.3.0 - 7.3.19, 7.4.0 - 7.4.8, 8.0.0alpha1 - alpha2
3d496a4e7a4d6a4e316b6a4e3255544d7a4d6d4e6b5a445a30516d4e30637a4d304d6a4e7855445a7a51324d Warning: hex2bin(): Input string must be hexadecimal string in /in/K1Fr9 on line 3
Output for 5.4.0 - 5.4.45, 5.5.0
3d496a4e7a4d6a4e316b6a4e3255544d7a4d6d4e6b5a445a30516d4e30637a4d304d6a4e7855445a7a51324d
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
3d496a4e7a4d6a4e316b6a4e3255544d7a4d6d4e6b5a445a30516d4e30637a4d304d6a4e7855445a7a51324d Fatal error: Call to undefined function hex2bin() in /in/K1Fr9 on line 3
Process exited with code 255.
Output for 4.4.5 - 4.4.9
3d496a4e7a4d6a4e316b6a4e3255544d7a4d6d4e6b5a445a30516d4e30637a4d304d6a4e7855445a7a51324d Fatal error: Call to undefined function: hex2bin() in /in/K1Fr9 on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.4
3d496a4e7a4d6a4e316b6a4e3255544d7a4d6d4e6b5a445a30516d4e30637a4d304d6a4e7855445a7a51324d Fatal error: Call to undefined function: hex2bin() in /in/K1Fr9 on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1
3d496a4e7a4d6a4e316b6a4e3255544d7a4d6d4e6b5a445a30516d4e30637a4d304d6a4e7855445a7a51324d Fatal error: Call to undefined function: hex2bin() in /in/K1Fr9 on line 3