Object-Oriented PHP

__call

The magic method __call is to undeclared methods what __get and __set are to undeclared data members. This is another magic method provided as a convenience. At first, it is a little difficult to imagine what an undeclared method might be and what use it might have. Well, here's one way that this method can prove useful. Suppose you wanted to add to the functionality of the MySQLResultSet class defined in Chapters 9 and 10, so as to retrieve the current system status in this fashion:

//assume $rs is an instance of MySQLResultSet
$rs->stat();

You could just create a wrapper method for the existing MySQL function, mysql_stat, as you did when creating other methods of this class. For example, the existing getInsertId method simply encloses ...