Create PHP Functions

Below spells it out exactly as it needs to be done..When the term "tour" is used below, that is just referring to the fact that this will be used on a tour vacation booking site... ---------------start --------------------- <?php ///////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////// // To Do - Above this function Define a Tour Object class objTour { public $szName = ""; } class objClient { public $szName = ""; } class objTransaction { public $nTransactionNumber = ""; } ///////////////////////////////////////////////////////////////////// // This fuction Returns a Tour Object // Returns the Tour object for the $nTourNumber which is the primary key function GetTour($nTourNumber) { } ///////////////////////////////////////////////////////////////////// // This fuction updates a Tour fields in the database // Returns the True or false function SetTour($objTour) { } ///////////////////////////////////////////////////////////////////// // This fuction Returns an Array of Tour Objects // Returns the Array of Tour objects for the $nTourType function GetTours($nTourType) { } ///////////////////////////////////////////////////////////////////// // This fuction Returns a Tour Object // Returns the Tour object for the $nTourNumber which is the primary key function GetClient($nPhoneNumber) { } ///////////////////////////////////////////////////////////////////// // This fuction updates a Tour fields in the database // Returns the True or false function SetClient($objClient) { } ///////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////// ?>