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Class member introspection functions
class_alias($s1,$s2) creates an alias $s2 for the class $s1.
get_called_class() returns the name of the class the method is called in.
get_object_ vars($o) returns an associative array of the non-static properties of the object $o.
get_class_ vars($s) returns an associative array of the declared properties of the class $s. The properties are visible from the current scope.
get_class_ methods($m) returns an array of the names of the methods in the class $m. $m is the class name or an object instance. 

<!DOCTYPE html><html><head></head>
<body><?php

class P {
   function shout(){
      echo get_called_class()."<br />";
   }
}
class C extends P{
   const x=10;
   private $a=1;
   public $b=2;
   static public $c=3;
}

class_alias('C','D');
$o = new D;
$o->shout();
$arr = get_object_vars($o); print_r($arr); echo "<br />";
$arr = get_class_vars('D'); print_r($arr); echo "<br />";
$arr = get_class_methods('D'); print_r($arr); echo "<br />";
$arr = get_class_methods($o); print_r($arr); echo "<br />";

?></body></html>

C Array ( [b] => 2 ) Array ( [b] => 2 [c] => 3 ) Array ( [0] => shout ) Array ( [0] => shout )