Re: interface problem in PHP5

If you want to delete an object, when you have other references to it, you must use the & operator, otherwise the object will not be killed for all references. I tested without the &-operator, but that did not work The &-operator is still important in PHP5. Look at the folling example <? $a = new stdclass; $b = $a; $c =& $a; ?> unsetting a will only kill a, b and c will still be "alive". setting a to null will kill c but not b /Erik Torsten Roehr wrote:

"Erik franzén" <erik@nordicaudi.com> wrote in message news:20040904173846.53823.qmail@pb1.pair.com...

Can anuyone describe this error? Compile Error: E:\Source\CMAES\src\include\dom.inc.php line 67 - Declaration of CMAES_DOM_Node_List::item() must be compatible with that of CMAES_DOM_Node_List_Interface::item() // {{{ interface CMAES_DOM_Node_List /** * * @access public */ interface CMAES_DOM_Node_List_Interface {

     function item();

I think you have to also define the arguments you want to use for item() in your interface:

        function item($a_iIndex);

     function search();
     function addItem();
     function removeItem();

} // }}} /** * CMAES_DOM_Node * */ class CMAES_DOM_Node_List implements CMAES_DOM_Node_List_Interface {

    // {{{ properties
    /**
    * Number of elements in node list
    * @var integer
    */
    public $iLength = 0;

    /**
    * Nodes in list
    * @var array
    */
    private $_aNodes = array();
    // }}}

    // {{{ item
     /**
     *  Returns the nth index given in item.
     *
     * @param inte $a_iIndex - index in list
     * @return mixed node object or null if item was not found
     * @access public
     */
    function &item($a_iIndex)

Are you sure you need '&' here? Shouldn't PHP5 pass all variables by reference on default? Regards, Torsten Roehr