In this video we are going to learn about function overriding which is defined in PHP. Overriding is only pertinent to derived classes, where the parent class has defined a method and the derived class wishes to override that method. In PHP, you can create function with same name in your child class to override the function. Implementation of overriding can not be achieved by creating 2 function with same name and different argument in php. Because we can not create same name function more than 1 time in php class.