3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php echo base64_decode(base64_encode("1337")); echo bin2hex(hex2bin("1337")); echo strrev(strrev("1337")); ?>
based on Q5gRu
Output for 5.4.0 - 7.2.0
133713371337
Output for 5.0.0 - 5.3.29
1337 Fatal error: Call to undefined function hex2bin() in /in/9fCUR on line 3
Process exited with code 255.
Output for 4.4.5 - 4.4.9
1337 Fatal error: Call to undefined function: hex2bin() in /in/9fCUR on line 3
Process exited with code 255.
Output for 4.3.2 - 4.4.4
1337 Fatal error: Call to undefined function: hex2bin() in /in/9fCUR on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1
1337 Fatal error: Call to undefined function: hex2bin() in /in/9fCUR on line 3