split string after x characters

Question

How to split $string after 5 characters into an array

example:

$string=\"123456789\";

expected output

$output[0] co         


        

Answer 1

With the help of BoltClocks' answer I have created the following function to solve the problem:

function split_on($string, $num) {
    $length = strlen($string);
    $output[0] = substr($string, 0, $num);
    $output[1] = substr($string, $num, $length );
    return $output;
}