3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php var_dump("${hex2bin('303132')}");
Output for 5.5.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Notice: Undefined variable: 012 in /in/vBFOT on line 2 string(0) ""
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.4.45
Parse error: syntax error, unexpected '(' in /in/vBFOT on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '(' in /in/vBFOT on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/vBFOT on line 2
Process exited with code 255.