Syntax with returned array from class method...

[cgm225]

I have a method that returns a two dimensional array, from which I want to set a variable to ONLY the first array contained in the two dimensional array.  Currently, I am doing so successfully like so...

 

        $this->photoData = $this->getSlicedData($this->photoPosition, 1);
        $this->photoData = $this->photoData[0];

 

HOWEVER, I would like to do this all in one line, but am having problems with the syntax...  I want to do something like...

 

        $this->photoData = $this->getSlicedData($this->photoPosition, 1)[0];

 

...but the [ 0 ] I tagged on there is giving me errors...

 

Any ideas?  Thanks again!

[JasonLewis]

It would. Because $this->getSliceData() isn't an array. Your setting $this->photoData as the array so you need to do it on seperate lines.

 

Is it that big of a deal to have 1 extra line?

[DarkWater]

For some reason, PHP doesn't allow that syntax (yet.  Hopefully they will soon.  I'd love to see it).  You could always do something like:

 

        $this->photoData = array_shift($this->getSlicedData($this->photoPosition, 1));

[JasonLewis]

$this->photoData = $this->getSlicedData($this->photoPosition, 1)[0];

 

That syntax doesn't make sense. Not to me anyway.

[DarkWater]

$this->photoData = $this->getSlicedData($this->photoPosition, 1)[0];

 

That syntax doesn't make sense. Not to me anyway.

 

It makes as much sense as:

 

<?php
class Test {
protected $other;

public function __construct(Other $other)
{
	$this->other = $other;
}

public function getOther()
{
	return $this->other;
}
}

class Other {
public function test()
{
	echo "Testing";
}
}

$other = new Other();
$test = new Test($other);
$test->getOther()->test();
?>

 

Referring to the last line of that, of course.

[JasonLewis]

No that makes sense, lol.

Because $test->getOther() is an object already.

 

In the OP's example $this->getSlicedData($this->photoPosition, 1) is just calling the function. It isn't an array yet. Which is why this syntax:

$this->getSlicedData($this->photoPosition, 1)[0]

 

Makes no sense.

[DarkWater]

The return of the function is an array though, just like the return $this->getOther() is an Other object.

[JasonLewis]

I think I can see where you are coming from. But still, to me... Your example makes sense, the OP's one doesn't.