Simple PHP contact form returning blank results?

Question

I have a very basic form. The form is being sent to the email, however it does not return any data, not sure what I am missing.

Here is my HTML code...

<form id="contact" action="process.php" />

    <label for="name">Your name</label>
    <input type="text" name="name" id="name" required>

    <label for="size">Your Size</label>
    <select id="size" name="size" required>
        <option value="">Choose a Size</option>
        <option value="s">S</option>
        <option value="m">M </option>
        <option value="l">L</option>
    </select>

    <input type="submit" name="submit" value="Submit"> 

</form>

...and here is my process.php file...

<?php
// Get Data 
$name = strip_tags($_POST['name']);
$size = strip_tags($_POST['size']);

// Send Message
mail( "test@testing.com", "Email Contact",
"Name: $name\nSize: $size\n",
"From: Test Server" );
?>

This email will be received successfully, but will look like this...

Name:

Size:

It returns the labels but not the fields. Any help would be greatly appreciated.

Answer 1

请确保指定您的表单应为POST，以确保变量可以通过$_POST ：

<form id="contact" action="process.php" method="POST"/>

Answer 2

尝试：

<form id="contact" action="process.php" method="post" >

Answer 3

Unless you do not define form's sending method it is assumed as GET as default.

Use method="POST"

<form id="contact" action="process.php" method="post">
...
</form>

In addition to this, you must check first if form is posted:

if(isset($_POST)) {
    $name = strip_tags($_POST['name']);
    $size = strip_tags($_POST['size']);

    // Send Message
    mail( "test@testing.com", "Email Contact", "Name: $name\nSize: $size\n", "From: Test Server" );
}

You may also use $_REQUEST but it is more vulnerable than $_POST . Because $_REQUEST does not mind how data comes; accepts data both from $_GET and $_POST .