Update form won't update

<?php
session_start();

require ('header.html');
	
date_default_timezone_set('America/Los_Angeles');

if(isset($_SESSION['valid_user'])){
	echo '<div class="content"><div class="item">';
	require('dbc.php');
	connect_db();
	$query = "Select * FROM SitRepReport WHERE IncidentName = '{$_POST['IncidentName']}'";
		if($r = mysql_query($query)){
			while($row = mysql_fetch_array($r)){
				(variable declarations)
			}
		}
		if(isset($_POST['submit'])){
		
			$problem = FALSE;
	
			if(empty($_POST['A bunch of conditionals'])){
				$problem = TRUE;
				echo'<p><h2>Please go back you missed something!</h2></p>';
			}
		
			if(!$problem){
				$updtQuery = "UPDATE SitRepReport SET Values";
					if(@mysql_query($updtQuery)){
						echo'<div class = "item"><h1>REPORT UPDATED</h1><p>Your report has been updated.</p></div>';
		
					}else{
						echo"<div class = \"item\"><h1>MySQL Error</h1><div class = \"descr\">Error Generated</div><p>Could not submit report because: <b>".mysql_error()."</b>.  The query was $updtQuery.</p></div>";
					}	
			}
		}

	echo'<form>Form is populated by above declared variables using MySQL</form>';
	
	close_db();

}else{
	echo '<h1>YOU ARE NOT LOGGED IN!</h1>';
}
require ('footer.html');
?>

Select all Open in new window

Greetings experts,

I have a reporting form which is stored the date enterd into a MySQL DB.  Once the user has input the data I have given them the option to change said data need be.

The update form is set up to load the previously entered data so the user only need to change the one or two items he/she wishes to change.  Once they click the update button the new data is sent to the DB.  All of which works fine.

The problem I am having is once the update button is clicked the data is being updated in the DB but the form refreshs back to the orinal data and I am afraid this will confuse my users.  They can see the form change if they manually click the refresh button but the too provides a warning about resending data which I fear will also confuse them.

Is there a way to stop this from occuring?  I have tried reload, redirect back to the same page.

I am a beginner in PHP so I don't know all the tricks.

I have included my abriviated code below.