extract() to object variables

[bilibytes]

Hi everyone,

I am wondering if it is possible to extract the key values of an array into object variables.

lets say i have the following $_REQUEST array:

$var_array = array("color" => "blue",
                   "size"  => "medium",
                   "shape" => "sphere");
extract($var_array, EXTR_IF_EXISTS);

and the the following object:

Class Listener
{
	public $color;
        public $size;
	
	public function __construct(){
		if(isset($_REQUEST)){

			extract($_REQUEST,  EXTR_IF_EXISTS);
			return true;
		}
		else{
			
			return false;
			
		}
	}
	
}

how could i use extract, to store the Key=>values into the object variables:

echo $this->color //blue
echo $this->size //medium

thankyou

[Atli]

Hi.

You can simply loop through the array and add each array element as a property.

For example:
[code=php]
class foo
{
public function __construct($in Array)
{
foreach($inArra y as $_key => $_value)
{
$this->$_key = $_value;
}
}
}
$arr = array('color' => 'blue', 'size' => 'medium');
$inst = new foo($arr);
print_r($inst);
[/code]
Which should give you:

foo Object
(
    [color] => blue
    [size] => medium
)

[bilibytes]

Thankyou,

the problem is that i cannot use the IF_EXISTS ability from the extract() function.

if i have a request[key] that is not expected, i would store it, which is a thing i would like to avoid...

thanks any way.

[Atli]

Then why don't you just pick out the elements you want and leave the rest?

Check out the array_intersect _key function.
It should do the trick.