The recursion warning happens because in theory, print_r goes through
a prints out the values for an object. So it prints out everything in
A, which includes a reference to B. So it prints out everything in B,
which includes an A. So it prints everything in A, which has a B.....
So that function would run recursively. Have two objects with
reference to each other isn't a problem, just that the print_r
function will throw those recursions errors.
Justin
On Jun 22, 2009, at 12:57 PM, Kirk Ouimet wrote:
Hi List,
I need to be able to access a other variables in a parent class from
an
object inside the parent class. Here's what I've cooked up, but it
throws a
*RECURSION* warning:
<?php
Class A {
var $msg = 'Why hello there my old friend';
var $b;
function __construct() {
$this->b = new B($this);
}
}
Class B {
var $a;
function __construct($a) {
$this->a = $a;
}
}
$a = new A();
$b = $a->b;
echo $b->a->msg;
// Output: Why hello there my old friend
print_r($a);
/* Output:
(
[msg] => Why hello there my old friend
[b] => B Object
(
[a] => A Object
*RECURSION*
)
)
*/
?>
Is the *RECURSION* warning bad coding on my part? What's a best
practice
here?
Thanks!
Kirk Ouimet
<mailto:[email protected]> [email protected]
Cell: (801) 310-1421
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