- ucwords: documentation ( source)
- strtoupper: documentation ( source)
- strtolower: documentation ( source)
- ucfirst: documentation ( source)
<?php
echo (strtoupper("hi my name is kelsey"));
echo (strtolower("HI MY NAME IS KELSEY"));
echo (ucfirst("hi my name is kelsey"));
echo (ucwords("hi my name is kelsey"));
?>