Two submit buttons in one form

Question

I have two submit buttons in a form. How do I determine which one was hit serverside?

Answer 1

Solution 1:
Give each input a different value and keep the same name:

<input type="submit" name="action" value="Update" /> <input type="submit" name="action" value="Delete" /> 

Then in the code check to see which was triggered:

if ($_POST['action'] == 'Update') {     //action for update here } else if ($_POST['action'] == 'Delete') {     //action for delete } else {     //invalid action! } 

The problem with that is you tie your logic to the user-visible text within the input.

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Solution 2:
Give each one a unique name and check the $_POST for the existence of that input:

<input type="submit" name="update_button" value="Update" /> <input type="submit" name="delete_button" value="Delete" /> 

And in the code:

if (isset($_POST['update_button'])) {     //update action } else if (isset($_POST['delete_button'])) {     //delete action } else {     //no button pressed } 

Answer 2

If you give each one a name, the clicked one will be sent through as any other input.

<input type="submit" name="button_1" value="Click me">