eregi_replace exact match

[Anon]

Hey there,

Having a little problem with a script i'm working on. I am pulling variables from a database, that I use to do a pattern search on another string.

$new = eregi_replace("$word", $insert, $old);

However, the problem I am having for example is that if $word = "template" and $old contains the word "templates" how do i get it to make an exact match, only replacing that specific word, and not variations of it?

I have tried this:
$new = eregi_replace("^$word$", $insert,$old);

But it doesn't seem to find anything now, even specific matches to the word "template".

Thanks for any help!

[alfoxy]

^ means the start of a line and $means the end ... try " $words "

Al

[Anon]

Don't use eregi_replace. Use preg_replace

$new = preg_replace("/(?<![a-z])$word(?![a-z]))/i",$insert,$old);

Now this won't match the 'template' in "templates" "Untemplate" but will match "template.", " Template", "template!" and "template35".

Whatever characters you don't want to precede or follow a matched $word go in the two [] sections.