Google search vith keywords recording

[IceDragon]

I want to add a google search form to my website which would also record the keywords that are searched by visitors..

How do I do that?

[ignace]

<form action="googleit.php" method="post" ..

<input type="text" name="keyword" ...

 

googleit.php

// assuming $_GET was filtered and validated

$keyword = $_GET['keyword'];

// write to db

...

// refer to google search

header("Location: http://www.google.com/search?q=" . $keyword);