3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php echo revstr(hex2bin("3d3d516343746d4d6d6c315669563362")) ?>
based on u2l0M
Output for 7.0.0 - 7.2.0
Fatal error: Uncaught Error: Call to undefined function revstr() in /in/ulpYY:3 Stack trace: #0 {main} thrown in /in/ulpYY on line 3
Process exited with code 255.
Output for 5.3.18 - 5.6.28
Fatal error: Call to undefined function revstr() in /in/ulpYY on line 3
Process exited with code 255.