HTML/PHP Form not working - php

Question

I have a HTML Form that uses partial PHP to grab the value, the form is basically like an edit account details form.
The Problem
I cannot work out why the form is not working and when using notepad++ to edit my code if I click on the it shows the start to be a DIV which just confuses the matter even more... When submitting the form it takes you back to the form page with no message so I am lost for a reason..
Form Page
<form method="POST" action="dev.php">
<!-- Row -->
<div class="row-fluid">
<!-- Column -->
<div class="span6">
<!-- Group -->
<div class="control-group">
<label class="control-label" for="fname">First name</label>
<div class="controls">
<input type="text" name="fname" id="fname" value="<?php echo $user_fname; ?>" class="span10" />
<span style="margin: 0;" class="btn-action single glyphicons circle_question_mark" data-toggle="tooltip" data-placement="top" data-original-title="First name is mandatory"><i></i></span>
</div>
</div>
<!-- // Group END -->
<!-- Group -->
<div class="control-group">
<label class="control-label" for="lname">Last name</label>
<div class="controls">
<input type="text" name="lname" id="lname" value="<?php echo $user_sname; ?>" class="span10" />
<span style="margin: 0;" class="btn-action single glyphicons circle_question_mark" data-toggle="tooltip" data-placement="top" data-original-title="Last name is mandatory"><i></i></span>
</div>
</div>
<!-- // Group END -->
</div>
<!-- // Column END -->
<!-- Column -->
<div class="span6">
<!-- Group -->
<div class="control-group">
<label class="control-label" for="email">Email Address</label>
<div class="controls">
<input type="text" name="email" id="email" value="<?php echo $user_email; ?>" class="span10" />
<span style="margin: 0;" class="btn-action single glyphicons circle_question_mark" data-toggle="tooltip" data-placement="top" data-original-title="First name is mandatory"><i></i></span>
</div>
</div>
<!-- // Group END -->
<!-- Group -->
<div class="control-group">
<label class="control-label" for="phonenumber" >Phone Number:</label>
<div class="controls">
<input type="text" name="phonenumber" id="phonenumber" value="<?php echo $user_number; ?>" class="span10" />
</div>
</div>
<!-- // Group END -->
</div>
<!-- // Column END -->
</div>
<!-- // Row END -->
<div class="separator line bottom"></div>
<!-- Group -->
<div class="control-group row-fluid">
<label class="control-label" for="bio">About me</label>
<div class="controls">
<textarea id="bio" name="bio" class="span12" rows="5"><?php echo $user_bio;?></textarea>
</div>
</div>
<!-- Form actions -->
<div class="form-actions" style="margin: 0;">
<button type="submit" id="accountdetails" name="accountdetails" class="btn btn-icon btn-primary glyphicons circle_ok"><i></i>Save changes</button>
</div>
</div>
</form>
<!-- // Form actions END -->
dev.php
if (isset($_POST['accountdetails'])) {
if (isset($_POST['fname']) || isset($_POST['lname']) || isset($_POST['email']) || isset($_POST['phonenumber']) || isset($_POST['bio'])) {
die ("HERE");
};
};
I probably need to drink more Coffee but I cannot for the life of me work out why it is not working.
Any help would be appreciated!
Thanks in advance.
EDIT
I put the name's in and this did not help, now the URL of the page shows this:
update.php?fname=Aaron&lname=Hatton&email=me%40aaronhatton.co.uk&phonenumber=0123456789&bio=+18+%7C+London+%7C+Taken&accountdetails=
any ideas?

Answer 1

One: do what Fred said (name attributes on your input tags).
Two: You're missing the </form> tag at the end.

Answer 2

Your form page seems correct, however, since the form updates the user data, look what the dev.php code is doing:
isset() function returns true if the value is set and you manual set the fields so it will evaluate to true.
and in your if statement you are ORing all the conditions so as soon as it finds 1 true condition, it will go into the if statement body and execute die which will do nothing.
so if you want to test, instead of using die, try echo "here" to see if a message is printed.

Answer 3

So I found out the form works perfect and there was some AJAX being used by another coder, removed and surprise surprise it works perfectly!
Damn co-workers!
Thanks to all that helped!