Skip to main content

PHP Forms Class in Action

A couple of days ago I created a Forms class that I can re-use in most of my projects. I stated that I would show you an example of how I generate the form fields when they're needed. So here we go.

To reference the Form Class:
http://dinocajic.blogspot.com/2015/06/php-forms-class.html

In the following example I'm creating a form and utilizing the forms class to help me separate most of the HTML from PHP.

This is what the form will look like once the code is executed.
















To help guide you through the code:

  • $_form is instantiated prior to the method call. 
  • A random token is generated and set to $_SESSION['token'] to prevent Cross Site Request Forgery
  • Also as an additional measure of security, we're only going to allow for the form to be valid for 5 minutes. So, we'll set $_SESSION['token_time'] = current time()
  • The hidden field is generated with the random token as the value
  • Input type of text is called to generate po_number..
  • Months are generated (i.e. 1 => January, 2 => February, etc).
  • Select tag is generated and the months are passed into it as the options
  • Days are simply generated as 1 to 31 and are passed to a new select tag
  • Two years are added to the current year and are passed to another select tag.
  • Locations are passed through to a select tag. This ideally should be stored in the Database but for the sake of the example, we added the locations manually to the array before passing it to the select tag
  • Status array is generated (another good example of items that should have been stored in the database) and passed to another select tag.
  • Submit button is generated
  • Form is ended.
  • Also please note that the form() method is part of a class. I just created a snippet so that you can focus on the method() itself



Later, I'll generate a class that ties all of it together.

Comments

Post a Comment

Popular posts from this blog

Beginner Java Exercise: Sentinel Values and Do-While Loops

In my previous post on while loops, we used a loop-continuation-condition to test the arguments. In this example, we'll loop at a sentinel-controlled loop. The sentinel value is a special input value that tests the condition within the while loop. To jump right to it, we'll test if an int variable is not equal to 0. The data != 0 within the while (data != 0) { ... } is the sentinel-controlled-condition. In the following example, we'll keep adding an integer to itself until the user enters 0. Once the user enters 0, the loop will break and the user will be displayed with the sum of all of the integers that he/she has entered. As you can see from the code above, the code is somewhat redundant. It asks the user to enter an integer twice: Once before the loop begins, and an x amount of times within the loop (until the user enters 0). A better approach would be through a do-while loop. In a do-while loop, you "do" something "while" the condition...
14 comments
Read more

Laravel 6.x with React and react-router

This will get you started on getting your first React/Laravel application deployed to your server. We'll cover everything from installation to deployment. Start by reading the installation instructions on  https://laravel.com/docs/6.x#installing-laravel . We'll cover those details below. Setting Up Laravel Check that you have the latest version of PHP installed on your computer.  It must be >= 7.2.0. Open terminal to get the Laravel installation tool. Type in composer global require laravel/installer Type in laravel to verify installation. Navigate to a directory on your computer where you want to install your project on your terminal. Run the following command: laravel new project_name (replace project_name with your project name). Once complete, cd into your new project. Type the following command: php artisan serve. You'll get a message like the following if it's running successfully: Laravel development server started: http://127.0.0.1:8000 ...
54 comments
Read more

Creating your own ArrayList in Java

Wanted to show that certain data structures in Java can be created by you. In this example, we'll go ahead and create an ArrayList data structure that has some of the methods that the built in ArrayList class has. We'll create 2 constructors: The default constructor that creates an ArrayList with a default size of 10. Constructor that allows an initial size to be passed to the array. We'll also create a number of methods: void add(Object x);  A method that allows you to place an Object at the end of the ArrayList. void add(int index, Object x);  A method that allows you to place a value at a given location. Object get(int index):  Allows you to retrieve a value of the arrayList array from a given location. int size();  Allows you to get the number of elements currently in the Arraylist. boolean isEmpty();  Tests to see if the Arraylist is empty. boolean isIn(Object x);  A method that sees if a particular object exist in the arrayList. int ...
49 comments
Read more