Re: Search Engine a Problem...?

On Fri, 10 Nov 2000 14:59:31 -0800, Joe Stump (joe@earth.care2.com) wrote: >> isset() shouldn't fail for 0. Maybe you had an old and buggy >>version >> of php? > >PHP 4.0.3 > >> this will give a warning is $start isn't set! >> use isset(), it's safer. less overhead too I would think. > >No it won't - I use it all the time. empty() WILL fail on 0 (note my >code >below) and isset sometimes acts wierd with 0 in the variable. >strlen() has >NEVER failed on me, while I have experienced such oddities. I'm >willing to take >a .000000000000000001 ms hit for rock solid performance anyday. It will give a warning, but you may be supressing them with error_reporting. try error_reporting(15). Sticklers like me set it at 15 and leave it there for maximum debugging. >CODE: > ><? > >$var = 0; > >if(isset($var)){ > echo 'set!'."\n"; >} > >if(empty($var)){ > echo 'empty!'."\n"; >} > >?> > >Return: > >[jstump@professorx vw]$ php -v >4.0.1pl2 >[jstump@professorx vw]$ php -q foo.php >set! >empty! But this is what's supposed to happen! How is this a failure? - Mark