3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = array(); for($i=0;$i<100;$i++) { $a = strtolower(strtoupper(implode(array_merge(str_split($a), range("a", "z"))))); }
Output for 5.2.5 - 5.6.28, 7.0.0 - 7.1.0
Warning: str_split() expects parameter 1 to be string, array given in /in/ODjSv on line 3 Warning: array_merge(): Argument #1 is not an array in /in/ODjSv on line 3 Warning: implode(): Argument must be an array in /in/ODjSv on line 3
Output for hhvm-3.12.0
Warning: str_split() expects parameter 1 to be string, array given in /in/ODjSv on line 3 Warning: array_merge() expects parameter 1 to be array, null given in /in/ODjSv on line 3 Warning: Invalid operand type was used: implode() expects a container as one of the arguments in /in/ODjSv on line 3
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.0.0 - 5.2.4
Warning: str_split() expects parameter 1 to be string, array given in /in/ODjSv on line 3 Warning: array_merge(): Argument #1 is not an array in /in/ODjSv on line 3 Warning: implode(): Argument to implode must be an array. in /in/ODjSv on line 3
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: str_split() in /in/ODjSv on line 3
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: str_split() in /in/ODjSv on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: str_split() in /in/ODjSv on line 3