[英]New session login script not working in PHP
我正在使用此腳本,請參見下面的腳本,該腳本是從本網站登錄用戶並根據其登錄重定向到網頁的。 效果很好,但我在將用戶名拖入重定向到的頁面時遇到了麻煩。 下面的新會話腳本通常與簡單腳本一起使用,但似乎不適用於此重定向腳本。 如果有人可以向我指出正確的方向,我將不勝感激,因為我是PHP的新手,這是我的第一次嘗試。 謝謝艾倫
重定向腳本效果很好。
<?php
$host="localhost"; // Host name
$username=""; // Mysql username
$password=""; // Mysql password
$db_name="trydata"; // Database name
$tbl_name="users"; // Table name
mysql_connect("$host", "$username", "$password")or die("cannot connect");
mysql_select_db("$db_name")or die("cannot select DB");
// username and password sent from form
$myusername=$_POST['username'];
$mypassword=$_POST['password'];
// To protect MySQL injection (more detail about MySQL injection)
$myusername = stripslashes($myusername);
$mypassword = stripslashes($mypassword);
$myusername = mysql_real_escape_string($myusername);
$mypassword = mysql_real_escape_string($mypassword);
$sql = "SELECT * FROM $tbl_name WHERE username='$myusername' and password='$mypassword'";
$result = mysql_query($sql);
// Mysql_num_row is counting table row
$count = mysql_num_rows($result);
// If result matched $myusername and $mypassword, table row must be 1 row
if($count == 1){
// Register $myusername, $mypassword and redirect to file"login_success.php"
$_SESSION['username'] = $myusername;
$_SESSION['password'] = $mypassword;
$result = mysql_fetch_array($result); // get the result set from the query
$redirect = trim($result['redirect']); // get the redirect column's value
if ($redirect == '') {
echo "No redirect value was set!";
} else {
header('Location: ' . $redirect);
exit;
}
} else {
echo "Wrong Username or Password";
}
?>
New session script not pulling loin information through.
<?php
session_start(); // start up your PHP session!
if (isset($_SESSION['username'])
{
echo "You are logged in as ".$_SESSION['username'];
echo "<p>";
echo "<a href='logout.php'> Click here to logout<a/>";
}
else
header ("Location: form.php");
?>
嘗試在重定向之前使用session_write_close :
if ($redirect == '') {
echo "No redirect value was set!";
} else {
session_write_close();
header('Location: ' . $redirect);
exit;
}
確保設置了session_start(); 在最上面一行中,訪問$ _SESSION數組的兩個腳本的<?php
行之后。
<?php
session_start(); <----------------Session should start here
$host="localhost"; // Host name
$username=""; // Mysql username
$password=""; // Mysql password
$db_name="trydata"; // Database name
$tbl_name="users"; // Table name
mysql_connect("$host", "$username", "$password")or die("cannot connect");
mysql_select_db("$db_name")or die("cannot select DB");
// username and password sent from form
$myusername=$_POST['username'];
$mypassword=$_POST['password'];
// To protect MySQL injection (more detail about MySQL injection)
$myusername = stripslashes($myusername);
$mypassword = stripslashes($mypassword);
$myusername = mysql_real_escape_string($myusername);
$mypassword = mysql_real_escape_string($mypassword);
$sql = "SELECT * FROM $tbl_name WHERE username='$myusername' and password='$mypassword'";
$result = mysql_query($sql);
// Mysql_num_row is counting table row
$count = mysql_num_rows($result);
// If result matched $myusername and $mypassword, table row must be 1 row
if($count == 1){
// Register $myusername, $mypassword and redirect to file"login_success.php"
$_SESSION['username'] = $myusername;
$_SESSION['password'] = $mypassword;
$result = mysql_fetch_array($result); // get the result set from the query
$redirect = trim($result['redirect']); // get the redirect column's value
if ($redirect == '') {
echo "No redirect value was set!";
} else {
header('Location: ' . $redirect);
exit;
}
} else {
echo "Wrong Username or Password";
}
?>
New session script not pulling loin information through.
<?php
if (isset($_SESSION['username'])
{
echo "You are logged in as ".$_SESSION['username'];
echo "<p>";
echo "<a href='logout.php'> Click here to logout<a/>";
}
else
header ("Location: form.php");
?>
您需要在開始時調用session_start()
。
我建議你學習PDO
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