Calling PHP code within same php file

Question

I want to create a form that calls PHP code within the same php file on submit.

Reading this, Why use $_SERVER['PHP_SELF'] instead of "", it seems I can use action="" instead of $_SERVER['PHP_SELF']; to do this.

If that's so, when I click submit, why isn't this PHP code at the top of the file executed?

if(isset($_POST['submit'])) {
    echo "submitted";
}

It should say submitted on the page.

In Google DevTools, the network tab doesn't show that the file is being called, just that the page is reloaded.

Form snippet:

<div id="contactForm">  
        <form role="form" action="" method='post' accept-charset='UTF-8'>
               <div class="row">
                   <div class="form-group col-xs-12 floating-label-form-group">
                         <input class="form-control" type="text" name="name" placeholder="Name">
                   </div>
               </div>
                <div class="row">
                    <div class="form-group col-xs-12">
                         <button type="submit" class="btn btn-lg btn-success">Send</button>
                    </div>
                </div>
         </form>

Heya. Are you sure $_POST['Submit'] is set? Try var_dump($_POST['Submit']).. or check if you used a lowercase 'submit' in the HTML code. — LGT, Jun 13 '14 at 00:23

score 4 · Accepted Answer · answered Jun 13 '14 at 00:27

4

It says type="submit", not name="submit"..

answered Jun 13 '14 at 00:27

LGT

4,957
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Ah this fixed it. Why does it not recognize the type? – user3871 Jun 13 '14 at 00:30
Well, type tells the browser what it's for while (variable) name is used by PHP (in combination with value). So in this case, use both attributes.. or select a method from one of the other answers. – LGT Jun 13 '14 at 00:32

score 1 · Answer 2 · answered Jun 13 '14 at 00:30

1

Because there is no variable in your form named "submit".

If you just want to test if the form has been submitted, you can use this:

if($_POST) {
    // ...
}

answered Jun 13 '14 at 00:30

Max

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score 0 · Answer 3 · answered Jun 13 '14 at 00:32

0

You'll want to use if(isset($_POST)) (else you will get PHP notices) and try to change your action from "" to "#", also add the name="submit" attribute to your submit button.

answered Jun 13 '14 at 00:32

Larry Williamson

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Calling PHP code within same php file

3 Answers3