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私はこのサイトから取得したこのスクリプトを使用して、ユーザーにログインし、ユーザーのログインに基づいてWebページにリダイレクトします。うまく機能しますが、リダイレクト先のページにユーザー名を取り込むのに問題があります。以下の新しいセッションスクリプトは通常、単純なスクリプトで機能しますが、このリダイレクトスクリプトでは機能しないようです。誰かが私を正しい方向に向けることができれば、私はPHPに非常に慣れていないので、私は感謝するでしょう。これは私の最初の試みです。ありがとうアラン

リダイレクトスクリプトはうまく機能します。

<?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");

?>
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3 に答える 3

0

リダイレクトする直前にsession_write_closeを使用してみてください:

if ($redirect == '') {
    echo "No redirect value was set!";
} else {
    session_write_close(); 
    header('Location: ' . $redirect);
    exit;
}
于 2012-05-11T08:06:21.487 に答える
0

必ず session_start(); を設定してください。$_SESSION配列にアクセスする両方<?phpのスクリプトの行の後、一番上の行に。

于 2012-05-11T08:06:37.467 に答える
0 
<?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");

?>

最初に電話する必要がありますsession_start()。

PDOを学ぶことをお勧めします

于 2012-05-11T08:11:38.583 に答える