PHP Check which form was submitted

Question

I am working on a website where I have 2 forms on 1 page. I use 1 PHP script to check the forms. But if I submit my second form on the page, my website submits the first form. How can I check which form is submitted?

<!--// Form 1-->
<form method="post">

<input type="text" name="test">
<input type="submit" name="submit">
<input type="hidden" name="page_form" value="1">

</form>

<!--// Form 2-->
<form method="post">

<input type="text" name="test">
<input type="submit" name="submit">
<input type="hidden" name="page_form" value="2">

</form>

PHP:

if(isset($_POST['submit'])) {

    $forms = array(1, 2);
    foreach($forms as $form) {

        if($_POST['page_form'] == $form) {
        // All my form validations which are for every form the same.

        }       
    }            
}    

Answer 1

What to do it this way:

<!--// Form 1-->
<form method="post">

<input type="text" name="test">
<input type="submit" name="form1" value="Submit form">

</form>

<!--// Form 2-->
<form method="post">

<input type="text" name="test">
<input type="submit" name="form2" value="Submit form">

</form>

And check which form was submitted:

if(isset($_POST["form1"]))
   echo "Form 1 have been submitted";
else if(isset($_POST["form2"]))
   echo "Form 2 have been submitted";