javascript,php , Cant submit form


Cant submit form

Question:

Tag: javascript,php

Basically I've got a form with 5 radio buttons. No submit button. I want the form to run when the user clicks on any of the radio buttons, so this is what I did.

<input id="5" type="radio" name="star" onchange="this.form.submit();" <?php if ($row["star"] =="5") echo "checked";?> value="5"/>

a querystring is required for the form so I'm using a form action like this

<form name="submit" action="http://example.com/page.php?id=<?php echo $urlid;?>&title=<?php echo $title;?>" method="POST">

and my php is

if ($_POST["submit"]) {
    $rating = $_POST['star'];
    $title = $_GET['title'];
    $verification = ($_GET['verification']);
} else {
    //run the page like usual
}

After testing, I found that onclick, it runs the form action, but on the php side, it goes to "else" where is runs the page like usual instead. Any ideas?


Answer:

Your PHP is checking if $_POST['submit'] contains a value. Your form does not contain a form element with the attribute name="submit", so therefore it fails and moves straight to the else statement.

If you want to check if the form was posted then you should instead check for:

if (!empty($_POST)) {}

or

if ($_SERVER['REQUEST_METHOD'] == 'POST') {}

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