3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $mac = hash_hmac("sha512","Un message suffisamment long pour tomber dans le cas du calcul du hashmac5uc3m01","7h3_1337_k3y",true); print(hextobin($mac));
based on Pqp8P
Output for 7.0.0 - 7.2.6
Fatal error: Uncaught Error: Call to undefined function hextobin() in /in/knLE5:5 Stack trace: #0 {main} thrown in /in/knLE5 on line 5
Process exited with code 255.
Output for 5.3.20 - 5.6.28
Fatal error: Call to undefined function hextobin() in /in/knLE5 on line 5
Process exited with code 255.