php fetch your details from the database via email - php

Question

I want to make a text field and button that will allow the user to fetch his details on the text fields instead of writting his details every time he wants to make a new reservation.
like in this picture:
http://oi41.tinypic.com/23ie70j.jpg
I tried to make this but with my code but gives me double forms one with the details and one without.
<form method="post" action="reserv page.php">
enter the email: <input type = "text" name = "email"/>
<input type = "submit" name = "submit" value="submit" />
</form>
<?php
mysql_connect("localhost","userName","password");
mysql_select_db("database_Name");
if(isset($_POST['submit']))
{
$email = $_POST['email'];
$q = "SELECT * FROM tabe WHERE the_email = '$email'";
$run = mysql_query($q );
while($row = mysql_fetch_array($run))
{
?>
</br></br>
<form action="payment.php" method="post" >
First Name:<input name="fName" type="text" value="<?php echo $row[1]; ?>" />
Last Name: <input name="lNamet" type="text" value="<?php echo $row[2]; ?>" />
User Name: <input name="uName" type="text" value="<?php echo $row[3]; ?>"/>
Email: <input name="email" type="text" value="<?php echo $row[4]; ?>" />
password: <input name="pass" type="password" value="<?php echo $row[5]; ?>"/>
contact: <input name="number" type="text" value="<?php echo $row[6]; ?>" />
<input name="confirm" type="submit" value="Confirm" />
</form>
</br></br>
<?php
}}
?>
<form action="payment.php" method="post" >
First Name:<input name="fName" type="text" />
Last Name: <input name="lNamet" type="text" />
User Name: <input name="uName" type="text" />
Email: <input name="email" type="text" />
password: <input name="pass" type="password" />
contact: <input name="number" type="text" />
<input name="confirm" type="submit" value="Confirm" />
</form>

Answer 1

<form method="post" action="reserv page.php">
enter the email: <input type = "text" name = "email"/>
<input type = "submit" name = "submit" value="submit" />
</form>
<?php
mysql_connect("localhost","userName","password");
mysql_select_db("database_Name");
if(isset($_POST['submit']))
{
$email = $_POST['email'];
//limit the query to one entry :)
$q = "SELECT * FROM tabe WHERE the_email = '$email' LIMIT 1";
$run = mysql_query($q );
//check if email is registered
if(mysql_num_rows($run)>0)
{
//display filled up form
while($row = mysql_fetch_array($run))
{
?>
</br></br>
<form action="payment.php" method="post" >
First Name:<input name="fName" type="text" value="<?php echo $row[1]; ?>" />
Last Name: <input name="lNamet" type="text" value="<?php echo $row[2]; ?>" />
User Name: <input name="uName" type="text" value="<?php echo $row[3]; ?>"/>
Email: <input name="email" type="text" value="<?php echo $row[4]; ?>" />
password: <input name="pass" type="password" value="<?php echo $row[5]; ?>"/>
contact: <input name="number" type="text" value="<?php echo $row[6]; ?>" />
<input name="confirm" type="submit" value="Confirm" />
</form>
</br></br>
<?php
}
}
//display blank form
else{
?>
<form action="payment.php" method="post" >
First Name:<input name="fName" type="text" />
Last Name: <input name="lNamet" type="text" />
User Name: <input name="uName" type="text" />
Email: <input name="email" type="text" />
password: <input name="pass" type="password" />
contact: <input name="number" type="text" />
<input name="confirm" type="submit" value="Confirm" />
</form>
<?php
}
}
?>

Answer 2

You're getting 2 forms because you're echoing one form if $_POST['submit'] is set and then another one regardless of anything. Print the second form only if $_POST['submit'] is not set. Since your code is so poorly written I will just give you an example:
if(isset($_POST['submit'])){
PRINT FETCHED FORM
}else{
PRINT EMPTY FORM
}
This, however, is not the "right" way to go. What people actually do is have variables null'd at start and then fill them up with data if there's a request and have a single form written in the file with input values as those variables.