How to check if a form is submitted via javascript?

Question

I have this conventional submit button which submit a form like this:

<form method="post" id="form_submit">
...
<input class="button" type="submit" name="Submit" value="Submit">
</form>

And I check if the submit button is clicked using this:

if(isset($_POST['Submit'])){
   //update DB
}

Now I have a submit link using jquery:

<a href="#" onclick="publish(); return false;">Submit</a>

JS code:

$("#form_submit").submit();

What is the alternative way here to be used here for if(isset($_POST['Submit'])) since I'm submitting the form using javascript?

Answer 1

If I understand you correctly, try this:

if ($_SERVER['REQUEST_METHOD'] === 'POST')
{
 // your code.........
}

Answer 2

You should add a hidden input <input type="hidden" name="formsubmit" value="yes" /> to the form which will always get submitted, and check for that instead of the button (which only gets submitted if it is clicked on ..)