On 29 July 2004 01:50, Jon Drukman wrote:
> with this code fragment:
>
> <?
>
> $string='/mobile/phone.html';
> if (strpos($string,'/mobile/')!==false) { print "one: yes\n"; }
> if (strpos($string,'/mobile/')===true) { print "two: yes\n"; }
>
> >
>
>
> only the first if statement prints anything. why is !==
> false not the
> same as === true ?
Because strpos returns the integer offset of the found substring, or FALSE
if not found; it *never* returns TRUE. (You need the !== test because
strpos() can return an offset of zero, which would be ==FALSE but not
===FALSE.)
Cheers!
Mike
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Mike Ford, Electronic Information Services Adviser,
Learning Support Services, Learning & Information Services,
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