magic methods
__construct()
__destruct()
__clone # $y = clone $x;
# $y is new copy of the object $x. and then __clone is called.
__autoload($class)
__get($arg)
__set($key,$arg)
__isset($arg)
__call($name,$argv)
__toString()
__construct()
__destruct()
__clone # $y = clone $x;
# $y is new copy of the object $x. and then __clone is called.
__autoload($class)
__get($arg)
__set($key,$arg)
__isset($arg)
__call($name,$argv)
__toString()