RE: [PHP] Inconsistent String Definition (string position starts at zero)?

Thanks Ignacio, !==false worked! I thought the extra = was a typo. I really appreciated the very useful and prompt response. I've still got to try and understand why that worked. The manual states: One last thing worth mentioning is the truth value of expressions. In many events, mainly in conditional execution and loops, you're not interested in the specific value of the expression, but only care about whether it means TRUE or FALSE (PHP doesn't have a dedicated boolean type). The truth value of expressions in PHP is calculated in a similar way to perl. Any numeric non-zero numeric value is TRUE, zero is FALSE. Be sure to note that negative values are non-zero and are thus considered TRUE! The empty string and the string "0" are FALSE; all other strings are TRUE. With non-scalar values (arrays and objects) - if the value contains no elements it's considered FALSE, otherwise it's considered TRUE. -- OK so there does appear to be a manual omission. But what's the significance of the extra symbol because !=false doesn't work? I'll give it a go: !=false evaluates whether the expression is not zero. !==false evaluates whether the function returns false. So why doesn't ===true evaluate whether the function returns not false? Thanks again, Adam -----Original Message----- From: Ignacio Vazquez-Abrams [mailto:ignacio@openservices.net] Sent: Sunday, 26 November 2000 2:53 p.m. To: Adam Warner Cc: php-general@lists.php.net Subject: Re: [PHP] Inconsistent String Definition (string position starts at zero)? Try: if (strpos($t,"text")!==false) ... The PHP manual has an omission about the Boolean type and its two possible values (true and false), but that's not quite the problem you're having here. -- Ignacio Vazquez-Abrams <ignacio@openservices.net>