TalkPHP - View Single Post - How to access the method of an object that is inside an object

tony · 11-13-2008, 02:04 AM

Hi guys and gals, once again i hit bump in this project.
the thing is that I have 2 classes, well I think it's better if i put the code first:

PHP Code:


			
<?php

class foo{

    private $a;

    private $b;

    

    function __construct(){

        $this->a=3;

        $this->b=3;

    }

    

    public function getA(){    return $this->a; }

    public function getB(){    return $this->b; }

    public function setA($t){ $this->a=$t; }

    public function setB($t){ $this->a=$t; }

}



clas bar{

    $private c;

    $private d;

    

    function __construct(){

        $this->c=10;

        $this->d= new foo;

    }

    

    public function getC(){ return $this->c }

    public function getD(){ return $this->d }

    public function setC($t){ $this->c=$t; }

    public function setD($t){ $this->d=$t; }

}

?>

now the problem rises when i want to get the getA() method from an instance of bar, like this:

PHP Code:


			
<?php

$house=new Bar;

echo $house->getD()->getA(); // it should output 3 ideally 

?>

but I get this "Fatal error: Can't use method return value in write context"

any ideas on what i am doing wrong? thanks for the help in advance.

11-13-2008, 02:04 AM	#1 (permalink)
tony The Addict Join Date: Aug 2008 Posts: 336 Thanks: 8	How to access the method of an object that is inside an object Hi guys and gals, once again i hit bump in this project. the thing is that I have 2 classes, well I think it's better if i put the code first: PHP Code: <?php class foo{ private $a; private $b; function __construct(){ $this->a=3; $this->b=3; } public function getA(){ return $this->a; } public function getB(){ return $this->b; } public function setA($t){ $this->a=$t; } public function setB($t){ $this->a=$t; } } clas bar{ $private c; $private d; function __construct(){ $this->c=10; $this->d= new foo; } public function getC(){ return $this->c } public function getD(){ return $this->d } public function setC($t){ $this->c=$t; } public function setD($t){ $this->d=$t; } } ?> now the problem rises when i want to get the getA() method from an instance of bar, like this: PHP Code: `<?php $house=new Bar; echo $house->getD()->getA(); // it should output 3 ideally ?>` but I get this "Fatal error: Can't use method return value in write context" any ideas on what i am doing wrong? thanks for the help in advance.