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Saving and deleting user records - PHP

In this twelfth part of the series I finish building the controller class that permits you to run CRUD operations against the pertinent “users” MySQL table. This class uses the model to interface with the data layer, the input class to filter incoming data, and the view class to display output on the browser. This process demonstrates the real functionality of the MVC framework developed in previous tutorials.

  1. Completing an MVC-Based Framework's Controller Class
  2. Managing users via a controller class
  3. Saving and deleting user records
  4. The finished version of the user controller class
By: Alejandro Gervasio
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July 06, 2010

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As I explained in the earlier section, to make the user controller class a bit more useful, it’s necessary to enable it to save and delete records in the “users” MySQL table. To accomplish this, I’m going to add to the class a couple of methods that will perform these tasks in a very intuitive manner.

The corresponding implementations of these methods are shown below. Take a look:

// save user

public function save()


// get POST params

if (Input::post('send'))


$fname = Input::post('fname');

$lname = Input::post('lname');

$email = Input::post('email');

// save user data

$this->model->save(array('fname' => $fname, 'lname' => $lname, 'email' => $email));



// delete existing user

public function delete($id)




That was simple to code and read, right? As you can see, these new methods also use the model’s API to save newly-created users to the MySQL table, and for updating users. Quit possibly, the most relevant detail to stress here is the static calls to methods of the “Input” class (remember this one?) within the “save()” method, before inserting new data into the pertinent table.

Other than that tiny subtlety, the rest of the logic implemented by the previous methods is easy to follow. So it’s time to show what the source code of the user controller class looks like after introducing these last improvements.

To see the complete definition of the controller, click on the link below and read the following segment. 

>>> More PHP Articles          >>> More By Alejandro Gervasio

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