Sun 13 Jan 2008 23:25:55
คือผมใช้ dreamweaver สร้างการตรวจสอบผู้ใช้ผ่าน login ให้อัตโนมัตินะครับ ทำให้ตัวแปรสำหรับ text feild ที่อยู่ใน from ไม่ส่งค่าไปอีกหน้าอะครับ ผมต้องการให้มันส่งค่า user ไปอีกหน้าอะครับ ไม่ทราบว่าต้องแก้โคด้อย่างไร ผมจะแสดงโค้ดให้ดูนะครับ
<?php require_once('../Connections/dbconn.php'); ?>
<?php
if (!function_exists("GetSQLValueString")) {
function GetSQLValueString($theValue, $theType, $theDefinedValue = "", $theNotDefinedValue = "")
{
$theValue = get_magic_quotes_gpc() ? stripslashes($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 = "level";
$MM_redirectLoginSuccess = "../DaySaleReport.php";
$MM_redirectLoginFailed = "login.php";
$MM_redirecttoReferrer = true;
mysql_select_db($database_dbconn, $dbconn);
$LoginRS__query=sprintf("SELECT `user`, pass, level FROM member WHERE `user`=%s AND pass=%s",
GetSQLValueString($loginUsername, "-1"), GetSQLValueString($password, "text"));
$LoginRS = mysql_query($LoginRS__query, $dbconn) or die(mysql_error());
$loginFoundUser = mysql_num_rows($LoginRS);
if ($loginFoundUser) {
$loginStrGroup = mysql_result($LoginRS,0,'level');
//declare two session variables and assign them
$_SESSION['MM_Username'] = $loginUsername;
$_SESSION['MM_UserGroup'] = $loginStrGroup;
if (isset($_SESSION['PrevUrl']) && true) {
$MM_redirectLoginSuccess = $_SESSION['PrevUrl'];
}
header("Location: " . $MM_redirectLoginSuccess );
}
else {
header("Location: ". $MM_redirectLoginFailed );
}
}
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=windows-874" />
<title>Untitled Document</title>
</head>
<body>
<form ACTION="<?php echo $loginFormAction; ?>" method="POST" name="form1" target="_parent" id="form1">
Username
<label>
<input type="text" name="user" id="user" />
</label>
<p>Password
<label>
<input type="password" name="pass" id="pass" />
</label>
<input name="hiddenField" type="hidden" id="hiddenField" value="<? echo $user; ?>" />
</p>
<p>
<label>
<input type="submit" name="login" id="login" value="login" />
</label>
</p>
</form>
</body>
</html>
ข้างบนๆ คือส่วนที่โปรแกรมันสร้างให้นะครับ
Sun 13 Jan 2008 23:59:49
ผมแก้ได้แล้วครับ ผมไปใช้เครื่องมือ Restrict Access To Page แล้วก็ไปหายตัวแปร ก็เจอว่า ตัวแปรนี้มันบอก $_SESSION['MM_Username'] นี่โค้ดครับ
<?php
if (!isset($_SESSION)) {
session_start();
}
$MM_authorizedUsers = "admin,saler";
$MM_donotCheckaccess = "false";
// *** Restrict Access To Page: Grant or deny access to this page
function isAuthorized($strUsers, $strGroups, $UserName, $UserGroup) {
// For security, start by assuming the visitor is NOT authorized.
$isValid = False;
// When a visitor has logged into this site, the Session variable MM_Username set equal to their username.
// Therefore, we know that a user is NOT logged in if that Session variable is blank.
if (!empty($UserName)) {
// Besides being logged in, you may restrict access to only certain users based on an ID established when they login.
// Parse the strings into arrays.
$arrUsers = Explode(",", $strUsers);
$arrGroups = Explode(",", $strGroups);
if (in_array($UserName, $arrUsers)) {
$isValid = true;
}
// Or, you may restrict access to only certain users based on their username.
if (in_array($UserGroup, $arrGroups)) {
$isValid = true;
}
if (($strUsers == "") && false) {
$isValid = true;
}
}
return $isValid;
}
$MM_restrictGoTo = "Sample2/login.php";
if (!((isset($_SESSION['MM_Username'])) && (isAuthorized("",$MM_authorizedUsers, $_SESSION['MM_Username'], $_SESSION['MM_UserGroup'])))) {
$MM_qsChar = "?";
$MM_referrer = $_SERVER['PHP_SELF'];
if (strpos($MM_restrictGoTo, "?")) $MM_qsChar = "&";
if (isset($QUERY_STRING) && strlen($QUERY_STRING) > 0)
$MM_referrer .= "?" . $QUERY_STRING;
$MM_restrictGoTo = $MM_restrictGoTo. $MM_qsChar . "accesscheck=" . urlencode($MM_referrer);
header("Location: ". $MM_restrictGoTo);
exit;
}
?>
เพื่อคนอื่นจะศึกษา ต่อไปผมจะเอาข้อมูลออกมาแสดงโดยอ้างอิงตัวแปล $_SESSION['MM_Username'] ถ้าเจอปัญหาแล้วจะมาถามอีกนะครับ
