adding dropdown data into my DB - php

Question

Alright so knocking some issues out one by one, now I am trying to get my dropdown menu data to submit. I don't know where to start with this one though.
here's my form.. anything wrong here? :
<form action="form.php" method="POST">
<div class="row">
<div class="large-4 columns">
<span id="spryfirstname">
<input name="firstname" type="text" placeholder="First Name"/>
<span class="textfieldRequiredMsg">A value is required.</span></span></div>
<div class="large-4 columns">
<span id="sprylastname">
<input name="lastname" type="text" placeholder="Last Name"/>
<span class="textfieldRequiredMsg">A value is required.</span></span></div>
<div class="large-4 columns">
<div class="row collapse">
<div class="small-9 columns"><span id="spryemail">
<input name="email" type="text" placeholder="email#example.com"/>
<span class="textfieldRequiredMsg">A value is required.</span></span></div>
</div>
</div>
</div>
<div class="row">
<div class="large-12 columns">
<label>Check all Products that you're interested in</label>
<input name="products[]" type="checkbox" value="all">
ALL PRODUCTS/SERVICES
<input name="products[]" type="checkbox" vallue="trade">Trade-in
<input name="products[]" type="checkbox" value="layaway">Layaway products
<input name="products[]" type="checkbox" value="theatre">Home Theatre Systems
<input name="products[]" type="checkbox" value="TV">HD TVs
<input name="products[]" type="checkbox" value="Games">Video Game Consoles<br>
<input name="products[]" type="checkbox" value="laptops"> Laptops
<input name="products[]" type="checkbox" value="monitors"> Monitors
<input name="products[]" type="checkbox" value="phones"> Phones
<input name="products[]" type="checkbox" value="cameras"> Cameras
<input name="products[]" type="checkbox" value="acoustic"> Acoustic Guitars
<input name="products[]" type="checkbox" value="electric"> Electric Guitars
<input name="products[]" type="checkbox" value="drums"> Drums
<input name="products[]" type="checkbox" value="wind"> Wind Instruments <br>
<input name="products[]" type="checkbox" value="pianos"> Pianos
<input name="products[]" type="checkbox" value="violins"> Violins
<input name="products[]" type="checkbox" value="diamonds"> Diamonds
<input name="products[]" type="checkbox" value="neck"> Necklaces
<input name="products[]" type="checkbox" value="rings"> Rings
<input name="products[]" type="checkbox" value="ear"> Ear Rings
<input name="products[]" type="checkbox" value="gold"> Gold Jewelry
<input name="products[]" type="checkbox" value="silver"> Silver Jewelry
<hr>
</div>
</div>
<div class="row">
<div class="large-12 columns">
<label>How often would you like to have product updates? <select>
<option value="daily" name="Updates">Daily</option>
<option value="weekly" name="Updates">Weekly</option>
<option value="monthly" name="Updates">Monthly</option>
</select>
</label>
</div>
</div>
<div class="row">
<div class="large-12 columns">
<label>Tell us a little about yourself <textarea placeholder="Type here">
</textarea>
</label>
</div>
</div>
<div class="row">
<input class="button small large-3" type="submit" name="submit" />
</div>
</form>
Here is my connection to the database/php:
<?php
if(isset($_POST['submit'])){
$con = mysqli_connect("localhost","dxh6110","tcqfoz7","dxh6110")
or die("Error " . mysqli_error($con));
$first = stripslashes($_POST['firstname']);
$last = stripslashes($_POST['lastname']);
$email = stripslashes($_POST['email']);
$checkbox = stripslashes($_POST['products']);
$first = mysqli_real_escape_string($con,$_POST['firstname']);
$last = mysqli_real_escape_string($con,$_POST['lastname']);
$email = mysqli_real_escape_string($con,$_POST['email']);
$checkbox = mysqli_real_escape_string($con,$_POST['products']);
$checkbox = implode(',', $_POST['products']);
$sql = "INSERT INTO Register (Firstname,Lastname,Email,Product)
VALUES('".$firstname."','".$lastname."','".$email."','".$checkbox."')";
}
mysqli_query($con,$sql);
mysqli_close($con);
?>

Answer 1

Well, part of your problem is that every time you visit the page, it will add another row. regardless of a submit or not so add this:
if(isset($_POST['Submit'])){
}
just wrap that around all the php you go there ^.^
so go ahead and delete all the blank rows it got ya and try again. That way you can debug it a little bit better.
So this explains the blank row problem you are having. ;) what of the 3 are not going through?

Answer 2

Welp I have figured my issues out. Thanks all for helping.
Basically when I first posted my issue it was 1 of 3 fields were being submitted to my DB
the reason for this was because my variables were not the same I had it out like this and also I was getting double entries... 1 blank entry and another with the 1 of 3 entries:
$first = stripslashes($_POST['firstname']);
$last = stripslashes($_POST['lastname']);
$email = stripslashes($_POST['email']);
$first = mysqli_real_escape_string($con,$_POST['firstname']);
$last = mysqli_real_escape_string($con,$_POST['lastname']);
$email = mysqli_real_escape_string($con,$_POST['email']);
$sql = "INSERT INTO Register (First,Last,Email,Product,Updates)
VALUES('".$firstname."','".$lastname."','".$email."');
}
$first did not equal $firstname, $last did not equal $lastname $email did equal $email.... so only 1 of 3 were being submitted to the db.
after this issue i didn't know how to add checkboxes and dropdown data... this is what I did to change it and also the double entries (1 blank) thanks to Nate Nevins.
if(isset($_POST['submit'])){
$con = mysqli_connect("localhost","dxh6110","tcqfoz7","dxh6110")
or die("Error " . mysqli_error($con));
$first = stripslashes($_POST['firstname']);
$last = stripslashes($_POST['lastname']);
$email = stripslashes($_POST['email']);
$checkbox = stripslashes($_POST['products']);
$update = stripslashes($_POST['updates']);
$first = mysqli_real_escape_string($con,$_POST['firstname']);
$last = mysqli_real_escape_string($con,$_POST['lastname']);
$email = mysqli_real_escape_string($con,$_POST['email']);
$checkbox = mysqli_real_escape_string($con,$_POST['products']);
$checkbox = mysqli_real_escape_string($con,$_POST['updates']);
$checkbox = implode(',', $_POST['products']);
$sql = "INSERT INTO Register (First,Last,Email,Product,Updates)
VALUES('".$first."','".$last."','".$email."','".$checkbox."','".$update."')";
}
mysqli_query($con,$sql);
mysqli_close($con);
?>