Add space after every 4th character

Question

I want to add a space to some output after every 4th character until the end of the string. I tried:

$str = $rows[\'value\'];


        

Answer 1

one-liner:

$yourstring = "1234567890";
echo implode(" ", str_split($yourstring, 4))." ";

This should give you as output:
1234 5678 90

That's all :D