Re: Determining if a variable is blank.

Use trim() instead of that str_replace and then an if(empty()) On Wed, 21 Aug 2002, Jason wrote: > I have a simplistic forum, and I am trying to write some code to determine > if the message box actually contains information, because if it is blank I > obviously don't want to post it to the database. The message box has the > name of 'reply'. Here is the code I'm trying to use, but its not working: > > $reply2 = str_replace(" ","",$reply); > if(empty($reply2)){ > // echo some error message to the user that they can't post a blank message > } > else{ > // post the message > } > > This however didn't work for me. So I had the thought that maybe the > variable $reply2 isn't set because it is blank. So I tried this: > > $reply2 = str_replace(" ","",$reply); > if(empty($reply2) || !isset($reply2)){ > // echo an error message > } > else{ > // post the message. > } > > I've tried different variations on this same idea, but somehow none of them > are working. Can anyone give me any suggestions or insight? > > Jason Cathcart > Check Out My Site: http://www.biohazardous.org > >