PHP Fatal Error can't use function return value in write context

Question

I am working on a PHP project and doing the development on Windows and everything works perfectly fine.

When I install the code onto a Linux box the page breaks and I get the following error:

 PHP Fatal error:  Can't use function return value in write context

The line that this error is referring to is

if (!isset(parent::getPostArray()["searchRefOnly"]))

And all the parent::getPostarray() function does is return an array as follows:

protected function getPostArray()
        {
            return $this->postArray;
        }

The above code works perfectly fine on Windows, so why not on Linux?

Duplication, solution is to upgrade to a higher PHP version. Works in PHP 5.5 and above. — Zhafur, Jan 22 '16 at 11:09
How is that a duplicate, that is referring to the empty function so they are trying to make a change. I'm not writing any changes I'm just checking if a value in a returned array exists — Boardy, Jan 22 '16 at 11:10

score 0 · Accepted Answer · answered Jan 22 '16 at 11:10

0

you can use this way

$result = $this->getPostArray();//parent::getPostArray()
if (!empty($result)){}

answered Jan 22 '16 at 11:10

Gagan Upadhyay

1 Answers1