Html + PHP contact form (Page Not found) - php

Question

I have created a simple Html page index.html where the user can submit a message. An additional PHP file email_form.php is created to capture the form submissions and send the form contents to my email address.
index.html:
<form name="contactform" method="POST" action="email_form.php">
<div class="form-group">
<div class="form-row">
<div class="col" id="prenom">
<input type="text" class="form-control" placeholder="Prénom" required="True" name="prenom">
</div>
<div class="col" id="nom">
<input type="text" class="form-control" placeholder="Nom" required="True" name="nom">
</div>
</div>
<div class="col" id="age">
<input type="number" class="form-control" placeholder="Age" required="True" name="age">
</div>
<div class="form-row">
<div class="col" id="tel">
<input type="tel" class="form-control" placeholder="Téléphone" name="tel">
</div>
<div class="col" id="mail">
<input type="email" class="form-control" placeholder="Email" name="email">
</div>
</div>
<textarea class="form-control" id="exampleFormControlTextarea1" rows="3" placeholder="Your message" name="message"></textarea>
<div class="row">
<div class="col-xs-6" id="button">
<button type="submit" name="submit" class="btn btn-primary">Send</button>
</div>
</div>
</div>
</form>
email_form.php:
<?php
if(isset($_POST['submit'])) {
$email_to = "info#mysite.com";
$email_subject = "Email subject";
$prenom = $_POST['prenom'];
$nom = $_POST['nom'];
$age = $_POST['age'];
$tel = $_POST['tel'];
$email = $_POST['email'];
$message = $_POST['message'];
function clean_string($string) {
$bad = array("content-type","bcc:","to:","cc:","href");
return str_replace($bad,"",$string);
}
$email_message .= "Prénom: ".clean_string($prenom)."\n";
$email_message .= "Nom: ".clean_string($nom)."\n";
$email_message .= "Age: ".clean_string($age)."\n";
$email_message .= "Telephone: ".clean_string($tel)."\n";
$email_message .= "Message: ".clean_string($message)."\n";
// create email headers
$headers = "From: ".$email."\n\n";
mail($email_to, $email_subject, $email_message, $headers);
header("Location: index.html");
}
?>
On the website, when I try to submit a message, it redirects me to a link looking like this: mysite.com/email_form.php with an error saying "page not found". I don't know much about PHP and I can't tell what I'm doing wrong.

Answer 1

First of all you should have a closing form tag </form>
Then:
Paste the php code to the top of your HTML file and
Change the file's extension to .php
Change the form's action to index.php
Your index.php should look something like this:
<?php
if(isset($_POST['submit'])) {
$email_to = "info#mysite.com";
$email_subject = "Email subject";
$prenom = $_POST['prenom'];
$nom = $_POST['nom'];
$age = $_POST['age'];
$tel = $_POST['tel'];
$email = $_POST['email'];
$message = $_POST['message'];
function clean_string($string) {
$bad = array("content-type","bcc:","to:","cc:","href");
return str_replace($bad,"",$string);
}
$email_message .= "Prénom: ".clean_string($prenom)."\n";
$email_message .= "Nom: ".clean_string($nom)."\n";
$email_message .= "Age: ".clean_string($age)."\n";
$email_message .= "Telephone: ".clean_string($tel)."\n";
$email_message .= "Message: ".clean_string($message)."\n";
// create email headers
$headers = "From: ".$email."\n\n";
mail($email_to, $email_subject, $email_message, $headers);
header("Location: index.html");
}
?>
<form name="contactform" method="POST" action="index.php">
<div class="form-group">
<div class="form-row">
<div class="col" id="prenom">
<input type="text" class="form-control" placeholder="Prénom" required="True" name="prenom">
</div>
<div class="col" id="nom">
<input type="text" class="form-control" placeholder="Nom" required="True" name="nom">
</div>
</div>
<div class="col" id="age">
<input type="number" class="form-control" placeholder="Age" required="True" name="age">
</div>
<div class="form-row">
<div class="col" id="tel">
<input type="tel" class="form-control" placeholder="Téléphone" name="tel">
</div>
<div class="col" id="mail">
<input type="email" class="form-control" placeholder="Email" name="email">
</div>
</div>
<textarea class="form-control" id="exampleFormControlTextarea1" rows="3" placeholder="Your message" name="message"></textarea>
<div class="row">
<div class="col-xs-6" id="button">
<button type="submit" name="submit" class="btn btn-primary">Send</button>
</div>
</div>
</div>
</form>

Answer 2

I have resolved the problem by changing headerin email_form.php. Now it looks like this:
header("Location: https://example.com");
And it works fine.