Blue Pelican Java Project 11... please help

Write a program that will allow a user to input his name. The prompt and input data would look something like this:
Please enter your name. Peter Ustinov

Using a for-loop and the String method, substring(...), produce a printout of the reversal of the name.

For example, the name Peter Ustinov would be:
vonitsu retep

Notice that the printout is in all lower-case. Use the String method, toLowerCase() to accomplish this.

and btw this book can be downloaded here: http://www.bluepelicanjava.com/downloadBook_bpj.htm

<?=strrev(strtolower(trim(fgets(fopen("php://stdin", "r"),128))));?>
lol php