On 16/02/2011, at 1:21 PM, Mark Kelly wrote: > In this way almost any value in $z will trigger the conditional code, > including 0 or an empty string. The exceptions are FALSE and NULL. If you > explicitly need to react to a NULL value, use is_null() to detect it.
http://nz.php.net/boolean#language.types.boolean.casting As $z is converted to a boolean and exists, that works just the same way as !empty(). --- Simon Welsh Admin of http://simon.geek.nz/ Who said Microsoft never created a bug-free program? The blue screen never, ever crashes! http://www.thinkgeek.com/brain/gimme.cgi?wid=81d520e5e -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php