Check for duplicate email address as well as username (user registration)

Hi Jason - thank you again for your help. I think this would be helpful for anyone trying to add multiple server validations from an original css form builder form.

I've been trying to show the returned value for $colname_newsletter but it always seems to come back as -1, so the validation always fails.

Can you provide some more assistance?

My code now is:

<?php
if (isset($_POST["Default_submit"])) {
$WAFV_Redirect = "index.php?invalid=true";
$_SESSION['WAVT_index_Errors'] = "";
if ($WAFV_Redirect == "") {
$WAFV_Redirect = $_SERVER["PHP_SELF"];
}
$WAFV_Errors = "";
$WAFV_Errors .= WAValidateEM((isset($_POST["fieldset_group_Email_address"])?$_POST["fieldset_group_Email_address"]:"") . "",true,1);
$WAFV_Errors .= WAValidateNM($totalRows_newsletter . "",-1,0,"",",.",true,2);

if ($WAFV_Errors != "") {
PostResult($WAFV_Redirect,$WAFV_Errors,"index");
}
}
?>
<?php
$colname_newsletter = "-1";
if (isset($_POST['fieldset_group_Email_address'])) {
$colname_newsletter = (get_magic_quotes_gpc()) ? $_POST['fieldset_group_Email_address'] : addslashes($_POST['fieldset_group_Email_address']);
}
mysql_select_db($database_ourhands1, $ourhands1);
$query_newsletter = sprintf("SELECT * FROM visitors WHERE VisitorEmail = %s", GetSQLValueString($colname_newsletter, "text"));
$newsletter = mysql_query($query_newsletter, $ourhands1) or die(mysql_error());
$row_newsletter = mysql_fetch_assoc($newsletter);
$totalRows_newsletter = mysql_num_rows($newsletter);

// WA Application Builder Insert
if (isset($_POST["Default_submit"])) // Trigger
{
$WA_connection = $ourhands1;
$WA_table = "visitors";
$WA_sessionName = "VisitorID";
$WA_redirectURL = "index.php";
$WA_keepQueryString = true;
$WA_indexField = "VisitorID";
$WA_fieldNamesStr = "VisitorEmail|userLevel";
$WA_fieldValuesStr = "".((isset($_POST["fieldset_group_Email_address"]))?$_POST["fieldset_group_Email_address"]:"") ."|" . "2";
$WA_columnTypesStr = "',none,''";
$WA_fieldNames = explode("|", $WA_fieldNamesStr);
$WA_fieldValues = explode("|", $WA_fieldValuesStr);
$WA_columns = explode("|", $WA_columnTypesStr);
$WA_connectionDB = $database_ourhands1;
mysql_select_db($WA_connectionDB, $WA_connection);
if (!session_id()) session_start();
$insertParamsObj = WA_AB_generateInsertParams($WA_fieldNames, $WA_columns, $WA_fieldValues, -1);
$WA_Sql = "INSERT INTO `" . $WA_table . "` (" . $insertParamsObj->WA_tableValues . ") VALUES (" . $insertParamsObj->WA_dbValues . ")";
$MM_editCmd = mysql_query($WA_Sql, $WA_connection) or die(mysql_error());
$_SESSION[$WA_sessionName] = mysql_insert_id();
if ($WA_redirectURL != "") {
if ($WA_keepQueryString && $WA_redirectURL != "" && isset($_SERVER["QUERY_STRING"]) && $_SERVER["QUERY_STRING"] !== "" && sizeof($_POST) > 0) {
$WA_redirectURL .= ((strpos($WA_redirectURL, '?') === false)?"?":"&").$_SERVER["QUERY_STRING"];
}
header("Location: ".$WA_redirectURL);
}
}
?>