Re: empty() and method return values

On 7 June 2010 21:52, Ashley Sheridan <ash@ashleysheridan.co.uk> wrote: > On Mon, 2010-06-07 at 22:40 +0300, Tanel Tammik wrote: > >> Hi, >> >> empty() cannot check the return value of the method or function. which would >> be the best workaround? >> >> empty($class->method())   // gets an error >> >> i could do >> >> $method_return_value = $class->method() and then run empty() on >> $method_return_value or is there an better option? i would like to do it in >> if statement.... >> >> i wrote an class for handling file uploads and there is an method >> getErrors() which returns empty array in case of 0 errors and i need to >> check it before i move any files. i'm just curious, what is the right way to >> do that! >> >> Br >> Tanel >> >> >> > > > Are you sure this is what is giving you the error, as people are using > this fine in their examples on the manual page for empty() > Empty only works on variables, not return values from functions. If you're checking the return value from a function, just do if ($class->method()). The return value will be cast to bool - look here for the conversions: http://dk2.php.net/manual/en/language.types.boolean.php Regards Peter -- <hype> WWW: http://plphp.dk / http://plind.dk LinkedIn: http://www.linkedin.com/in/plind BeWelcome/Couchsurfing: Fake51 Twitter: http://twitter.com/kafe15 </hype>