I don't know what the problem is but whenever I try to submit an error appears saying 'Oops, try again. Did you remember to print your name in UPPERCASE?'.
However I have done that and the program does work.
Thankyou to anybody who helps!
<html> <p> <?php // Get a partial string from within your own name // and print it to the screen! $name = "Leah"; echo $name; $sub =substr($name,0,3); //echo $sub; ?> <?php // Make your name upper case and print it to the screen: $upper = strtoupper($name); echo $upper; ?> <?php // Make your name lower case and print it to the screen: $lower=strtolower($name); echo $lower; ?> </p> </html>