[PHP] Passing Object Refs throught Arrays

[James]

I'm having a problem, and I wrote this sample code to illistrate it.

In this code, I'm trying to create a object, put it throught a que. I
then want something to happen to this object, and this change to be
reflected in the original object. I am aware that PHP uses copy
symantecs not refrence ones, so I have used  at all the places I can
see to use them. However it doesnt work: the output from this is still
0 not 100 as it should be.

Does anyone have any suggestions, or URL's to really good guides on
reference passing?

Thanks in Advance,
James.

-

class test {
var $flag = 0;
}

// Make Object
$root = new test();

// Make Que
$que = array();

// Stick object on que
array_push($que, $root);

// Take object from Que
$consider = array_shift($que);

// Change something on the object we pulled from the que
$consider-flag = 100;

// Test and see if it changed on the original object
echo($root-flag);





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Re: [PHP] Passing Object Refs throught Arrays

[Tom Rogers]

Hi,

Thursday, January 30, 2003, 10:36:20 PM, you wrote:

J I'm having a problem, and I wrote this sample code to illistrate it.

J In this code, I'm trying to create a object, put it throught a que. I
J then want something to happen to this object, and this change to be
J reflected in the original object. I am aware that PHP uses copy
J symantecs not refrence ones, so I have used  at all the places I can
J see to use them. However it doesnt work: the output from this is still
J 0 not 100 as it should be.

J Does anyone have any suggestions, or URL's to really good guides on
J reference passing?

J Thanks in Advance,
J James.

J -

J class test {
J var $flag = 0;
J }

J // Make Object
J $root = new test();

J // Make Que
J $que = array();

J // Stick object on que
J array_push($que, $root);

J // Take object from Que
J $consider = array_shift($que);

J // Change something on the object we pulled from the que
$consider-flag = 100;

J // Test and see if it changed on the original object
echo($root-flag);

Here are some replacements that I use for handling references as the normal pop
and push wont work:

function array_ref_push($array,$ref){
$array[] = $ref;
}
function array_ref_pop($array){
$r = $array[count($array)-1];
array_pop($array);
return $r;
}

function array_ref_unshift($array,$ref){
array_unshift($array,'');
$array[0] = $ref;
}
function array_ref_shift($array){
$r = $array[0];
array_shift($array);
return $r;
}



-- 
regards,
Tom


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