Fernando_mcunha

Oi, 'Fernando_mcunha' Você não pode comparar um campo com NULO usando = ou <> (igual ou diferente). A comparação correta é com IS NULL ou IS NOT NULL. Exemplo: campo IS NULL campo IS NOT NULL. Veja o Manual do MySQL para mais detalhes. Deu certo .. Vlw amigão.

Boa tarde, Sou novo forum e tenho uma dúvida ... Tenho pagina de autenticação porem quando digito o usuario e senha me retorna o seguinte erro ... "You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'AND pass=NULL' at line 1" Segue o codigo da minha página ... index.php <?php require_once('Connections/config.php'); ?> <?php if (!function_exists("GetSQLValueString")) { function GetSQLValueString($theValue, $theType, $theDefinedValue = "", $theNotDefinedValue = "") { if (PHP_VERSION < 6) { $theValue = get_magic_quotes_gpc() ? stripslashes($theValue) : $theValue; } $theValue = function_exists("mysql_real_escape_string") ? mysql_real_escape_string($theValue) : mysql_escape_string($theValue); switch ($theType) { case "text": $theValue = ($theValue != "") ? "'" . $theValue . "'" : "NULL"; break; case "long": case "int": $theValue = ($theValue != "") ? intval($theValue) : "NULL"; break; case "double": $theValue = ($theValue != "") ? doubleval($theValue) : "NULL"; break; case "date": $theValue = ($theValue != "") ? "'" . $theValue . "'" : "NULL"; break; case "defined": $theValue = ($theValue != "") ? $theDefinedValue : $theNotDefinedValue; break; } return $theValue; } } ?> <?php // *** Validate request to login to this site. if (!isset($_SESSION)) { session_start(); } $loginFormAction = $_SERVER['PHP_SELF']; if (isset($_GET['accesscheck'])) { $_SESSION['PrevUrl'] = $_GET['accesscheck']; } if (isset($_POST['user'])) { $loginUsername=$_POST['user']; $password=$_POST['pass']; $MM_fldUserAuthorization = ""; $MM_redirectLoginSuccess = "index1.php"; $MM_redirectLoginFailed = "index2.php"; $MM_redirecttoReferrer = false; mysql_select_db($database_config, $config); $LoginRS__query=sprintf("SELECT `user`, pass FROM authen WHERE `user`=%s AND pass=%s", GetSQLValueString($loginUsername, "-1"), GetSQLValueString($password, "text")); $LoginRS = mysql_query($LoginRS__query, $config) or die(mysql_error()); $loginFoundUser = mysql_num_rows($LoginRS); if ($loginFoundUser) { $loginStrGroup = ""; if (PHP_VERSION >= 5.1) {session_regenerate_id(true);} else {session_regenerate_id();} //declare two session variables and assign them $_SESSION['MM_Username'] = $loginUsername; $_SESSION['MM_UserGroup'] = $loginStrGroup; if (isset($_SESSION['PrevUrl']) && false) { $MM_redirectLoginSuccess = $_SESSION['PrevUrl']; } header("Location: " . $MM_redirectLoginSuccess ); } else { header("Location: ". $MM_redirectLoginFailed ); } } ?> <?php include"header1.php" ?> <div id="content"> <div id="conteudo"> <div id="box1"> <div id="loginbox"> <div id="login"> <form action="<?php echo $loginFormAction; ?>" method="POST" id="boxlogin"><table width="200" border="1"> <tr> <td colspan="2" align="center">Login:</td> </tr> <tr> <td>User:</td> <td><label for="user"></label> <input type="text" name="user" id="user" /></td> </tr> <tr> <td>Password:</td> <td><label for="pass"></label> <input type="password" name="pass" id="pass" /></td> </tr> <tr> <td>&nbsp;</td> <td align="right"><input type="submit" name="login" id="login2" value="Login" /></td> </tr> </table> </form> </div><!--login--> </div><!--loginbox--> </div><!--box1--> </div><!--conteudo--> </div><!--conteudo--> <?php include"nav/sidebar.php"?> <div id="divclear"></div> </div><!--content--> <div id="footer"> <ul> <li><a href="http://www.diablo3.com" target="_blank"><img src="imagens/blizzard.jpg"/></a></li> <li><p>&copy;2010 - Blizzard Entertainment.<br /> All rights reserved.</li></p> <li><a href="http://www.diablo3.com" target="_blank"><img src="imagens/blizzard.jpg"/></a></li> </ul> </div><!--footer--> </div><!--box--> </body> </html> Por favor me ajudem ... Aguardo.