get_object_vars
    (PHP 4 , PHP 5)
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().