seo friendly links

[barney0o0]

Hi..i originally posted this in the wrong forum for what i wanted to achieve, so here goes....

I have changed the htaccess file so this;

website.com/whatson.php?event_id=1&cat_name=comedy&event_name=some ones name

changes to this;

website.com/whatson/1-some ones name.html

using:

<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
rewriterule ^whatson/([^-]+)-([^&]+)\.html$ /whatson.php?event_id=$1&cat_name=$2&event_name=$3 [L]
</IfModule>

One thing that i cant get my head around (and yes, ive been searching around for the last few days!)....what php code do i need to have to change the actual links in my webpage (below) to a seo friendly link?

<a href="whatson.php<?php echo $row_main['event_id']; ?>&amp;cat_name=<?php echo $row_main['cat']; ?> &amp;event_name=<?php echo $row_main['eventname']; ?>"

....then obvioulsy i then need to change the values again for a mysql query (maybe this would be part 2 of the question!)

...i hope someone could literally spell it out for me...thanks in advance

[barney0o0]

sorry...just a gentle bumpy