3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php echo count_chars( "What you up to??", 2);
Output for 5.4.0 - 7.1.0
Notice: Array to string conversion in /in/uaTtS on line 2 Array
Output for 4.3.0 - 5.3.29
Array