如何让我的PHP联系表单工作？ [重复]

Question

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• Reference - What does this error mean in PHP? 34 answers

I have a php contact form which I developed from this forum, the form gets a customers name, email and contact number from a website however, I'm getting several errors saying; undefined index name on line 34, the same error is present for a number of other variables also, I'm wondering if I could have some help resolving this issue?

<?php
    $name = $_POST['name'];
    $email = $_POST['email'];
    $Contact_Number = $_POST['contact number'];
    $from='From:Client';
    $to='[e-mail]';
    $subject='Claremont Holding Page Enquiry';
    $body = "From: $name
 E-Mail: $email
 Contact Number:
 $Contact_Number";

if($_POST['submit'])
{
    if(mail($to, $subject,$body,$from))
    {
        echo '<p>Message sent!</p>';
    }
    else
    {
        echo '<p> something went wrong, please try again!</p>';
    }

}

?>



<form method = "post" action ="Index.php">

<label> name </label>
<input name="Name" placeholder="Type Here">


<label> email </label>
<input name="email" placeholder="Type Here">

<label> contact number </label>
<input name="Contact Number" placeholder="Type Here">

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


</form>

</div>

Answer 1

index of the post variable should be the same as the form input elements name

correct your form (with change name of elements)

<form method = "post" action ="Index.php">

<label> name </label>
<input name="name" placeholder="Type Here">


<label> email </label>
<input name="email" placeholder="Type Here">

<label> contact number </label>
<input name="contact_umber" placeholder="Type Here">

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


</form>

AND php

<?php
if(isset($_POST['submit']))
{
    $name = $_POST['name']; // use here the same name as in input elements of form
    $email = $_POST['email'];
    $Contact_Number = $_POST['contact_number'];
    $from='From:Client';
    $to='[e-mail]';
    $subject='Claremont Holding Page Enquiry';
    $body = "From: $name
 E-Mail: $email
 Contact Number:
 $Contact_Number";


    if(mail($to, $subject,$body,$from))
    {
        echo '<p>Message sent!</p>';
    }
    else
    {
        echo '<p> something went wrong, please try again!</p>';
    }

}

?>