replacing [lnk] by a <a href>

[excyle]

is it posible to replace

[lnk]http://www.site.nl[/lnk]

by

<a Href="http://www.site.nl">http://www.site.nl</a>

[excyle]

forget to say that te string is in an variable ($row["reactie"])witch comes out of a MySQL database

and the string that has to be replaced isn't the only data in the variable

[Anon]

$newtext = preg_replace("/[lnk](http://[^{[]*)[\lnk]/",} "<a href=\"\1\">\1</a>", $oldtext);

something like that should work

[excyle]

thanks for the help.

it had a litle bug but it works perfect now.

the only problem is the case sencitivety of [lnk] and [/lnk]
is there a way to remove it ???