#28796 [Com]: Apache eat all Memory (parent::$this->__construct())

[benjcarson at digitaljunkies dot ca]

 ID:               28796
 Comment by:       benjcarson at digitaljunkies dot ca
 Reported By:      felix at trilithium dot de
 Status:           Open
 Bug Type:         Apache related
 Operating System: Linux version 2.4.21-199-default
 PHP Version:      5.0.0RC3
 New Comment:

$this->__construct() is a recursive call to secondClass' constructor. 
Since the constructor never returns, the recursion never bottoms out;
it is effectively an infinite loop.  Each call consumes space on the
stack, so eventually PHP chews up all available memory and dies.

You would see the same behaviour if secondClass' constructor was:

function __construct() {
  $this->__construct();
}

What you really want, as alex dot pagnoni at solarix dot it has pointed
out is:

function __construct() {
  parent::__construct();
}


Previous Comments:
------------------------------------------------------------------------

[2004-06-17 13:38:32] alex dot pagnoni at solarix dot it

is parent::$this->__construct() the correct syntax? Wasn't 
it supposed to be parent::__construct()?

------------------------------------------------------------------------

[2004-06-15 17:03:13] felix at trilithium dot de

Description:
------------
Apache eat all memory when your try the example code



Reproduce code:
---------------
class firstClass{
        function __construct(){
                echo __CLASS__."::".__FUNCTION__."<br>";
        }
        function test(){
                echo __CLASS__."::".__FUNCTION__."<br>";
                return $this;
        }
 }

 class secondClass extends firstClass{
        function __construct(){
                echo __CLASS__."::".__FUNCTION__."<br>"; 
                parent::$this->__construct(); //<-here Apache eat all memory
                //parent::$this->test(); // this works          
        }
 }
 
$e= new secondClass;



------------------------------------------------------------------------


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Edit this bug report at http://bugs.php.net/?id=28796&edit=1