Help: am looking for a code to check if a" word" is in the post, then do this.....!

[ToNetU]

Hi there,

am wondring if there is a code i can use in postbit template to check if this word [test] is in the post then do this [test2]. ?

to make it more clear:
am trying to made a mod that do hide the entire info of the member who post [warning:] & if he/she in [admin group] so the whole post will be without any member info so no one can see who post this warning.

i know how to do everything, but still looking for a code that do look into the post if [warning:] in the post so the rest of the code start "which is hide the member info"

thanks.