submit form to self

At the moment, I have a form with an input (text) and a button to submit the form.

The form is posted to 'submit.php'. I would like the form post开发者_运维技巧ed to same page as the form.

How can I do this?

<form action="submit.php" method="POST">
    <input type="text" class="emailField" placeholder="email address" name="email" />
    <button type="submit">
        <div class="submit" />
    </button>
</form>

submit.php

<?php
    mysql_connect('localhost', '', '') or die('unable to connect');
    mysql_select_db('') or die('unable to select db');
    $query = mysql_query("");
    if (mysql_num_rows($query) > 0) {
        exit("You have already subscribed!");
    }
    else {
        mysql_query("") or die(mysql_error());
        exit("You have successfully subscribed!");
    }

?>

---

I think you have a couple of options here.

Submit the form onto itself

<?php
    if('POST' == $_SERVER['REQUEST_METHOD']) {
        // process the form here
    }
?>
<form action="" method="POST">
    <input type="text" class="emailField" placeholder="email address" name="email" />
    <button type="submit">
        <div class="submit" />
    </button>
</form>

Redirect back to the form

Add something like this in submit.php where you want to show the form.

<?php
    header('Location: http://example.org/form.php');
    exit;
?>