splitting a string/replace help

[gateway]

I have 2 strings that are input from a form.

First String is Keywords seperated by a ","
the second is a list of phrases seperated by a ","

my handleform takes these 2 strings and turns them into an array.

$keys = explode(",", $keywords);
$phrase = explode(",", $phrases);
$words = array_merge($keys,$phrase);

then I did a small test and merged the 2 arrays together.

What Im trying to accomplish would be taking the phrases ie (this is a really great site) and inserting keywords in the front middle and end of a prase.

then take the next prases and do the same etc.. Im looking at preg_match or eregi but im still not very good with expressions :/

advice?

Gate

[Anon]

Since you already have them split into arrays there's probably no need for regular expressions. Just loop through the two arrays and concatenate the keywords where you want them in the phrases.

[gateway]

Yea, I thought of that, but still a newbie so not sure how to:

<keyword beinning> part of prase <keyword midddle> part of prase <keyword end>

?

Gate