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PHP - Help Using Variables In Html Form.

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Help Using Variables In Html Form.	View Content

Session Variables Do Not Get Returned Into Previous Page's Form.

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This is a multi page registration form. I want to check the user input from form1.php with preg_match in form2.php then return the users details back into form1 with error messages(e.g $errname) so the user doesn't need to re enter the information.

Neither the error messages or the session variables are shown in form1.php's form. I've echoed out the session variables found that the value makes it to form 2. But the variables are empty when it goes back to form 1.

form1.php

<html>
<head>
  <title>Register</title>
  <style type="text/css">
   td { vertical-align: top; }
    .errText {
     font-family: Arial;
     font-size: 10px;
     color: #CC0000;
     text-decoration: none;
     font-weight: normal;
    }
  </style>
</head>
<body>
  <form action="form2.php" method="post">
   <table>
    <tr>
     <td><label for="name">Username:</label></td>
     <td><input type="text" name="name" id="name" size="20"
       maxlength="20" value="<?php echo $_SESSION['name'];?>"/>
   <?php  if(isset($_POST[$errname])) echo $errname; ?></td>
</tr><tr>
     <td><label for="password">Password:</label></td>
     <td><input type="password" name="password" id="password" size="20"
       maxlength="20" value=""/></td>
    </tr><tr>
     <td><label for="first_name">First name:</label></td>
     <td><input type="text" name="first_name" id="first_name" size="20"
       maxlength="20" value="<?php echo $_SESSION['first_name'];?>"/>
   <?php  if(isset($_POST[$errfirst])) echo $errfirst; ?></td>
    </tr><tr>
     <td><label for="last_name">Last name:</label></td>
     <td><input type="text" name="last_name" id="last_name" size="20"
       maxlength="20" value="<?php echo $_SESSION['last_name'];?>"/>
   <?php  if(isset($_POST[$errlast])) echo $errlast; ?>
   </td>
    </tr><tr>
     <td><label for="email">Email:</label></td>
     <td><input type="text" name="email" id="email" size="20" maxlength="50"
       value="<?php echo $_SESSION['email'];?>"/>
   <?php  if(isset($_POST[$erremail])) echo $erremail; ?></td>
    </tr><tr>
     <td><label for="address">Address:</label></td>
     <td><input type="text" name="address" id="address" size="20" maxlength="20"
       value="<?php echo $_SESSION['address'];?>"/>
   <?php  if(isset($_POST[$erraddress])) echo $erraddress; ?></td>
    </tr><tr>
     <td><label for="city">City/Town:</label></td>
     <td><input type="text" name="city" id="city" size="20" maxlength="20"
       value="<?php echo $_SESSION['city'];?>"/>
   <?php  if(isset($_POST[$errcity])) echo $errcity; ?></td>
    </tr><tr>
<td><label for="county">County:</label></td>
     <td><input type="text" name="county" id="county" size="20" maxlength="20"
       value="<?php echo $_SESSION['county'];?>"/>
   <?php  if(isset($_POST[$errcounty])) echo $errcounty; ?></td>
    </tr><tr>
<td><label for="post">Postcode:</label></td>
     <td><input type="text" name="post" id="post" size="20" maxlength="20"
       value="<?php echo $_SESSION['post'];?>"/>
   <?php  if(isset($_POST[$errpost])) echo $errpost; ?></td>
    </tr><tr>
<td><label for="home">Home Number:</label></td>
     <td><input type="text" name="home" id="home" size="20" maxlength="20"
       value="<?php echo $_SESSION['home'];?>"/>
   <?php  if(isset($_POST[$errhome])) echo $errhome; ?></td>
    </tr><tr>
<td><label for="mobile">Mobile:</label></td>
     <td><input type="text" name="mobile" id="mobile" size="20" maxlength="20"
       value="<?php echo $_SESSION['mobile'];?>"/>
   <?php  if(isset($_POST[$errmobile])) echo $errmobile; ?></td>
    </tr><tr>
     <td> </td>
     <td><input type="submit" name="submit" value="Sumbit"/></td>
    </tr>
   </table>
  </form>
</body>
</html>

form2.php

<?php

//let's start the session
session_start();

//finally, let's store our posted values in the session variables
$_SESSION['name'] = $_POST['name'];
$_SESSION['password'] = $_POST['password'];
$_SESSION['first_name'] = $_POST['first_name'];
$_SESSION['last_name'] = $_POST['last_name'];
$_SESSION['email'] = $_POST['email'];
$_SESSION['address'] = $_POST['address'];
$_SESSION['city'] = $_POST['city'];
$_SESSION['county'] = $_POST['county'];
$_SESSION['post'] = $_POST['post'];
$_SESSION['home'] = $_POST['home'];
$_SESSION['mobile'] = $_POST['mobile'];

$errname     = "";
$errfirst  = "";
$errlast  = "";
$erremail    = "";
$erraddress = "";
$errcity    = "";
$errcounty      = "";
$errpost     = "";
$errhome     = "";
$errmob     = "";

if(  preg_match('/^[A-Z][a-zA-Z -]{3,30}+$/',$_SESSION['name']) ) {
$errname = '<p class="errText">Name must be from letters, dashes, spaces and must not start with dash</p>';
}
if(  preg_match('/^[A-Z][a-zA-Z -]{3,30}+$/',$_SESSION['first_name']) ) {
$errfirst = '<p class="errText">Name must be from letters, dashes, spaces and must not start with dash</p>';
}
if(  preg_match('/^[A-Z][a-zA-Z -]{3,30}+$/',$_SESSION['last_name']) ) {
$errlast = '<p class="errText">Name must be from letters, dashes, spaces and must not start with dash</p>';
}
if(  preg_match('/^[a-zA-Z]\w+(\.\w+)*\@\w+(\.[0-9a-zA-Z]+)*\.[a-zA-Z]{2,4}$/',$_SESSION['email']) ) {
$erremail    = '<p class="errText">This is not a valid email address.';
}
if(  preg_match('/^[a-zA-Z0-9 _.,:\"\']+$/',$_SESSION['address']) ) {
$erraddress = '<p class="errText">Address must be only letters, numbers or one of the following ". , : /"</p>';
}
if(  preg_match('/[a-zA-Z]+/',$_SESSION['city']) ) {
$errcity    = '<p class="errText">Your city must contain a letter.';
}
if(  preg_match('/[a-zA-Z]+/',$_SESSION['county']) ) {
$errcounty      = '<p class="errText">Your county must contain a letter.';
}
if(  preg_match('/(GIR 0AA)|((([A-Z-[QVX]][0-9][0-9]?)|(([A-Z-[QVX]][A-Z-[IJZ]][0-9][0-9]?)|(([A-Z-[QVX]][0-9][A-HJKSTUW])|([A-Z-[QVX]][A-Z-[IJZ]][0-9][ABEHMNPRVWXY])))) [0-9][A-Z-[CIKMOV]]{2})/',$_SESSION['post']) ) {
$errpost     = '<p class="errText">This is not a valid UK Postcode.';
}
if(  preg_match('/s*$?0\d{4}$?(\s*|-)\d{3}(\s*|-)(\d{3}\s*)|(\s*$?0\d{3}$?(\s*|-)\d{3}(\s*|-)\d{4}\s*)|(\s*)(7|8)(\d{7}|\d{3}(\-|\s{1})\d{4})\s*/',$_SESSION['home']) ) {
$errhome     = '<p class="errText">This is not a valid UK local phone number.';
}
if(  preg_match('/^(\+44\s?7\d{3}|$?07\d{3}$?)\s?\d{3}\s?\d{3}$/',$_SESSION['mobile']) ) {
$errmob     = '<p class="errText">This is not a valid UK mobile phone number.';
}

else{

$errname     = ($_POST[$errname]);
$errfirst  = ($_POST[$errfirst]);
$errlast  = ($_POST[$errlast]);
$erremail    = ($_POST[$erremail]);
$erraddress = ($_POST[$erraddress]);
$errcity    = ($_POST[$errcity]);
$errcounty      = ($_POST[$errcounty]);
$errpost     = ($_POST[$errpost]);
$errhome     = ($_POST[$errhome]);
$errmob     = ($_POST[$errmob]);
header("Location: form1.php");
exit;

}

?>

Any help appreciated. I think I should buy a professional book, instead of my beginner one.