From 06c09b9e744d2ac437b7f4e726a55399dbf0ea68 Mon Sep 17 00:00:00 2001
From: matt <matt@1a063a9b-81f0-0310-95a4-ce76da25c4cd>
Date: Thu, 17 Nov 2005 01:18:16 +0000
Subject: [PATCH] Don't let people register dupe emails, fixes #1487

git-svn-id: http://svn.automattic.com/wordpress/trunk@3121 1a063a9b-81f0-0310-95a4-ce76da25c4cd
---
 wp-register.php | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/wp-register.php b/wp-register.php
index 8591de7b7..b3e556b2d 100644
--- a/wp-register.php
+++ b/wp-register.php
@@ -30,6 +30,11 @@ case 'register':
   if ( username_exists( $user_login ) )
 		$errors['user_login'] = __('<strong>ERROR</strong>: This username is already registered, please choose another one.');
 
+	/* checking the email isn't already used by another user */
+	$email_exists = $wpdb->get_row("SELECT user_email FROM $wpdb->users WHERE user_email = '$user_email'");
+	if ( $email_exists)
+		die (__('<strong>ERROR</strong>: This email address is already registered, please supply another.'));
+
 	if ( 0 == count($errors) ) {
 		$password = substr( md5( uniqid( microtime() ) ), 0, 7);