PHP simple form not posting - php

Question

I've been tearing my hair out trying to figure out why the isset($_POST['Submit']) is not executing with my form. The data from the form is just not passing into the php code. Basically the code does not seem to be recognizing something like $ffname = $_POST["ffname"];
<?php
$ffname = $flname = $femail = $fcemail = $fpass = $fcpass = "";
if(isset($_POST['ffname'])){
$ffname = $_POST["ffname"];
$flname = $_POST["flname"];
$femail = $_POST["femail"];
$fcemail = $_POST["fcemail"];
$fpass = $_POST["fpass"];
$fcpass = $_POST["fcpass"];
echo "<p>Hello World<p>";
$con = mysqli_connect("localhost", "root", "") or die(mysqli_error());
mysqli_select_db($con, "userdata") or die(mysqli_error($con));
mysqli_query($con,"INSERT INTO tbluser (fname, lname, email, pass) VALUES('$ffname', '$flname', '$femail', '$fpass')")
or die (mysqli_error($con));
}
?>
<form method="post">
First Name: <input type="text" name="ffname" id="ffname" value="<?php echo $ffname;?>"><br>
Last Name: <input type="text" name="flname" value="<?php echo $flname;?>"><br>
E-mail: <input type="email" name="femail" value="<?php echo $femail;?>"><br>
Confirm E-mail: <input type="email" name="fcemail" value="<?php echo $fcemail;?>"><br>
Password: <input type="password" name="fpass" value="<?php echo $fpass;?>"><br>
Confirm Password: <input type="password" name="fcpass" value="<?php echo $fcpass;?>"><br>
<input type="submit" name="Submit" value="submit">
</form>

Answer 1

The other answer by #DerVO is correct. But there seems to be something else at play, since you say it still doesn't work.
A comment became too long, so I've built a full answer here.
Step 1:
Add a name to your input:
<input type="submit" name="Submit" value="submit">
However, relying on the submit in your $_POST is not the best plan. So I suggest watching a different form field - for example, ffname:
Step 2:
Improve your watch, using a different field:
if ( isset( $_POST['ffname'] ) ) {
// do your work
}
Lastly, you may be munging your form action attribute.
Step 3:
In order to keep things simple, if the form is supposed to submit to the same page, you can simply omit the form action.
<form method="post">
Betweeen these three items, the form will work, unless you have some problem with your server.
Step 4:
Clean up your form formatting. You've got odd spacing which is problematic. In an html element, the property="value" code needs to be without spaces, but spaces between properties. Example:
<!-- Your version -->
<input type = "text"name = "ffname"id = "ffname"value="<?php echo $ffname;?>"><br>
<!-- Clean / correct version -->
<input type="text" name="ffname" id="ffname" value="<?php echo $ffname;?>"><br>
Here's a "clean" version of your whole form:
<form method="post">
First Name: <input type="text" name="ffname" id="ffname" value="<?php echo $ffname;?>"><br>
Last Name: <input type="text" name="flname" value="<?php echo $flname;?>"><br>
E-mail: <input type="email" name="femail" value="<?php echo $femail;?>"><br>
Confirm E-mail: <input type="email" name="fcemail" value="<?php echo $fcemail;?>"><br>
Password: <input type="password" name="fpass" value="<?php echo $fpass;?>"><br>
Confirm Password: <input type="password" name="fcpass" value="<?php echo $fcpass;?>"><br>
<input type="submit" name="Submit" value="submit">
</form>

Answer 2

You need to give your input submit a name:
<input type="submit" name="Submit" value="Submit">

Answer 3

You have pass name of element in $_POST
try put name attribute in input submit
<input type = "submit" name="Submit" value = "1">