"Peter Lind" <peter.e.l...@gmail.com> wrote in message 
On 7 June 2010 21:52, Ashley Sheridan <a...@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:


WWW: http://plphp.dk / http://plind.dk
LinkedIn: http://www.linkedin.com/in/plind
BeWelcome/Couchsurfing: Fake51
Twitter: http://twitter.com/kafe15

Thanks! It works...

class TestClass {
  protected $errors = array();

  function getErrors() {
    return $this->errors;

$class = new TestClass;

if($class->getErrors()) {
  echo 'there is an value!';
} else {
  echo 'empty';

No need to complicate things.


PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php

Reply via email to