get_object_vars
    (PHP 4 )
get_object_vars -- Returns an associative array of object properties
Description
array 
get_object_vars ( object obj)
     This function returns an associative array of defined object properties       for the specified object obj.     
Note:        In versions prior to PHP 4.2.0, if the variables declared in the class        of which the obj is an instance, have not been        assigned a value, those will not be returned in the array.  In versions       after PHP 4.2.0, the key will be assigned with a NULL        value.      
     
| Example 1. Use of get_object_vars() | <?php
class Point2D {
    var $x, $y;
    var $label;
    function Point2D($x, $y) {
        $this->x = $x;
        $this->y = $y;
    }
    function setLabel($label) {
        $this->label = $label;
    }
    function getPoint() {
        return array("x" => $this->x,
                     "y" => $this->y,
                     "label" => $this->label);
    }
}
// "$label" is declared but not defined
$p1 = new Point2D(1.233, 3.445);
print_r(get_object_vars($p1));
$p1->setLabel("point #1");
print_r(get_object_vars($p1));
 ?> | 
 
       The printout of the above program will be:         | Array
 (
     [x] => 1.233
     [y] => 3.445
     [label] =>
 )
 Array
 (
     [x] => 1.233
     [y] => 3.445
     [label] => point #1
  ) | 
 | 
     
     See also get_class_methods() and      get_class_vars()!