3v4l.org

run code in 200+ PHP versions simultaneously
<?php $a = hex2bin("4c65206672616ec3a7616973"); $b = hex2bin("4c65206672616e63cca7616973"); var_dump($a, $b, strpos($a, $b) === 0);
Output for 5.4.0 - 7.4.6
string(12) "Le fran├žais" string(13) "Le franc╠žais" bool(false)
Output for 5.0.0 - 5.3.29
Fatal error: Call to undefined function hex2bin() in /in/4HgUL on line 3
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: hex2bin() in /in/4HgUL on line 3
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: hex2bin() in /in/4HgUL on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: hex2bin() in /in/4HgUL on line 3