Re: Nesting level too deep - recursive dependency?
| From: | Curt Zirzow | Date: | Wed, 20 Oct 2004 00:12:11 +0000 |
| Subject: | Re: Nesting level too deep - recursive dependency? | ||
| References: | 1 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-199889@lists.php.net to get a copy of this message | ||
* Thus wrote Francisco M. Marzoa Alonso:
> This code:
>
> <?php
>
> class TestClass {
> public $myself;
>
> function __construct () {
> $this->myself = $this;
> }
> }
>
> $TestObj = new TestClass ();
>
> if ( $TestObj->myself == $TestObj ) {
> echo "They are same.\n";
> }
Since comparing objects is comparing all the attributes: first php
compares the $myself attrib for both objects:
$TestObj->myself->myself == $TestObj->myself
In order to see if those two myself's compare php needs to compare
all of those attributes:
$TestObj->myself->myself->myself == $TestObj->myself->myself
...And so on...
PHP Detected this and threw and error.
Curt
--
Quoth the Raven, "Nevermore."