3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php var_dump(array_walk(explode(' ', 'foo bar is very nice'), function($v){return $v;}));
Output for 7.0.0 - 7.1.0
Notice: Only variables should be passed by reference in /in/OLvZu on line 3 bool(true)
Output for hhvm-3.12.0
bool(true)
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.3.0 - 5.6.28
Strict Standards: Only variables should be passed by reference in /in/OLvZu on line 3 bool(true)
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/OLvZu on line 3
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 T_FUNCTION in /in/OLvZu on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/OLvZu on line 3
Process exited with code 255.