Getting PHP too recognise a clicked link

Well i am making a site for someone who wants minimal loading etc so what i am struggling with is i have an A - Z list, i want users too be able too just click a hyperlink and have the PHP i am using recognise that they selected that specific letter... the rest after that i can do myself...

like if they click a my PHP will have say $userSelect which is the selected letter...

 

You mean like..

#page.html

Code:

<a href="index.php?letter=a">A</a>
<a href="index.php?letter=b">B</a>
<a href="index.php?letter=c">C</a>
<a href="index.php?letter=d">D</a>

#Index.php

Code:

<?php
echo "You picked letter " . $_GET['letter'];
if ($_GET['letter] == "a")
{
      echo "you picked a";
}
?>

etc...

Did you mean that?