> How is 0342352 being assigned to the variable that you're filtering? > If PHP thinks it's a string, then the filter will fail. If PHP thinks Oops, potentially bad information there as well, sorry. In general, a string representation of a decimal number /will/ pass FILTER_VALIDATE_INT. But your particular string ("0342352") will only fail FILTER_VALIDATE_INT in the filter's default configuration; set the ALLOW_OCTAL flag and it will pass: http://codepad.org/RNE5LZMr You'll still end up with an unexpected value in your final variable, though. Ben -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php