The recommended way to verify a form was submitted.

[atrum]

So I am aware that there are many ways to skin a cat as the saying goes, and I am trying to decide what is the recommended way to verify that a form was submitted.

 

Take for example a simple form, a few fields, some buttons, etc, etc.....

 

Now when a user submits that form, I want to verify on the php end that the form was submitted.

 

I can use isset or empty, and im sure many other ways.

 

What do you prefer/ recommend when verifying form submissions?

[trq]

The most reliable way is to create a hidden filed within the form and name it (for instance) 'submit'. You then check this index is set within the $_POST or $_GET array depending on your form's method. eg;

 

if (isset($_POST['submit'])) {
  // process form
}

 

Some people simply name there submit button 'submit' and check for that. Unfortunately, not all browsers will send this.