RE: [PHP] Else/For loop

Thanks to everyone who replied. Of course it should be '=='. I was too focused on why the for was not working and overlooked the obvious. Mark Roberts Sr. Systems Analyst LanApps/Web Development The Williams Information Services Corporation 918-573-1706 mark.roberts@williams.com -----Original Message----- From: Christoph Starkmann [mailto:kiko@nfq.de] Sent: Wednesday, June 12, 2002 8:27 AM To: Roberts, Mark; 'php-general@lists.php.net' Subject: RE: [PHP] Else/For loop Hi Mark! > Being relatively new to php, I discovered the following after > about 2 hours > of debugging last night and was wondering why??? > > I had the following code: > > if ( $num_results = 0 ) > { > echo "no records found"; > } > else > { > for ($i=0; $i < $num_results; $i++) > { > display record set > } > } > > As a result, the for loop never executed, no matter how many > records were > returned in the record set. I placed echo statements though > out to determine > why the for loop was not being executed. I put an echo > statement just before > the for to make sure the else condition was being met. > > Finally, I just copy/pasted (literally) the for loop to just > before the 'if' > statement. Much to my surprise...the for loop now works > perfectly. (Except, > of course, if there are no records returned). > > The duduction...for loops will not work inside else statements. The > question...why? I guess this would be the end of all PHP-programming ;) Of course you can place any correct block of code inside any other correct block of code. But, i your case $num_results IS zero. Just place an echo statement inside the if block ;) Very frequent error ;) "if ($num_results = 0)" indeed is an asignment, no comparison. Better use "==" if you want to compare thingies... > I think I can work around this with some different coding, > but why should I > have to? I have done this same thing in java, perl and other > languages... Yes, also with "==" ;) Cheers, Kiko -- It's not a bug, it's a feature. christoph starkmann mailto:kiko@nfq.de http://www.gruppe-69.com/ ICQ: 100601600 -- -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php