0

この上から髪を伸ばしています。セッションを保存するための簡単なスクリプトを作成しようとしました。ユーザーがブラウザを閉じたときに、後で戻ってきても買い物かごはそのままです。一部のアイテムでバスケットに以前と同じアイテムが含まれていることに気付くまで、これはすべてうまくいっているように見えました。いくつかのチェックの後、これらの奇妙なページでセッション ID が異なることに気付きました! これが私のフレームワークの一番上にある私のコードです。

<?php

session_start();
function sessions(){
    if( ! isset( $_COOKIE['PHPSESSID'] ) ) {
        setcookie( "PHPSESSID", session_id(), strtotime('+ 30 days') );
    }else{
        $con = Database::getInstance();
        if( session_id() != $_COOKIE['PHPSESSID'] ) {
            $re = $con->query( "SELECT * FROM `" . TABLE_PREFIX . "_tbl_sessions` WHERE session_id = '" . $_COOKIE['PHPSESSID'] . "'" );
            if( $re->num_rows != 0 ) {
                $ar = $re->fetch_assoc();
                $id = $ar['id'];
                $_SESSION['basket'] = unserialize( stripslashes( $ar['basket'] ) );
                $con->query("UPDATE `" . TABLE_PREFIX . "_tbl_sessions` SET session_id = '" . session_id() . "' WHERE id = '$id' " );
            }
            unset($_COOKIE['PHPSESSID']);
            setcookie( "PHPSESSID", session_id(), strtotime('+ 30 days') );
            header('Location: ' . get_base_url() );
        }else{
            $re = $con->query( "SELECT * FROM `" . TABLE_PREFIX . "_tbl_sessions` WHERE session_id = '" . $_COOKIE['PHPSESSID'] . "'" );
            if( $re->num_rows != 0 ) {
                $ar = $re->fetch_assoc();
                $id = $ar['id'];
                if( ! empty( $_SESSION['basket'] ) ) {
                    $con->query("UPDATE `" . TABLE_PREFIX . "_tbl_sessions` SET session_id = '" . $_COOKIE['PHPSESSID'] . "', data = '" . addslashes( serialize( $_SESSION['basket'] ) ) . "' WHERE id = '$id'" );
                }else{
                    $con->query( "DELETE FROM `" . TABLE_PREFIX . "_tbl_sessions` WHERE id = '$id'" );  
                }
            }else{
                if( ! empty( $_SESSION['basket'] ) ) {
                    $con->query( "INSERT INTO `" . TABLE_PREFIX . "_tbl_sessions` ( `session_id`, `stamp`, `data`) VALUES ( '" . $_COOKIE['PHPSESSID'] . "', NOW(), '" . addslashes( serialize( $_SESSION['basket'] ) ) . "' )" );  
                }
            }
        }
    }
    echo 'cookie: ' . $_COOKIE['PHPSESSID'] . ' : session(): ' . session_id();
}

?>

この問題に関するヘルプは大歓迎です。

** 編集 **

私はそれをもっと簡単にしようとしましたが、それでも同じ問題です

<?php

function sessions(){
    $con = Database::getInstance();
    if( session_id() == '' ) {
        if( isset( $_COOKIE['session_id'] ) ) {
            session_start();
            $re = $con->query( "SELECT * FROM `" . TABLE_PREFIX . "_tbl_sessions` WHERE session_id = '" . $_COOKIE['session_id'] . "'" );
            if( $re->num_rows != 0 ) {
                $ar = $re->fetch_assoc();
                $id = $ar['id'];
                if( session_id() != $_COOKIE['session_id'] ) {
                    $_COOKIE['session_id'] = session_id();
                    $con->query("UPDATE `" . TABLE_PREFIX . "_tbl_sessions` SET session_id = '" . session_id() . "' WHERE id = '$id' " );
                    $_SESSION['basket'] = unserialize( stripslashes( $ar['data'] ) );
                }else{
                    if( isset( $_SESSION['basket'] ) ) {
                        $con->query("UPDATE `" . TABLE_PREFIX . "_tbl_sessions` SET data = '" . addslashes( serialize( $_SESSION['basket'] ) ) . "' WHERE id = '$id' " );
                    }
                }   
            }else{
                $con->query( "INSERT INTO `" . TABLE_PREFIX . "_tbl_sessions` ( `session_id`, `stamp`, `data`) VALUES ( '" . $_COOKIE['session_id'] . "', NOW(), '' )" );       
            }
        }else{
            session_start();
            setcookie( "session_id", session_id(), strtotime('+ 30 days') );
            $_COOKIE['session_id'] = session_id();
        }
    }else{
        die('session has previously been created'); 
    }
    echo 'cookie: ' . $_COOKIE['session_id'] . ' : session(): ' . session_id();
}

?>
4

1 に答える 1

0 
<?php

function sessions(){
    $con = Database::getInstance();
    if( session_id() == '' ) {
        session_start();
        if( isset( $_COOKIE['session_id'] ) ) {
            $re = $con->query( "SELECT * FROM `" . TABLE_PREFIX . "_tbl_sessions` WHERE session_id = '" . $_COOKIE['session_id'] . "'" );
            display_error( $con );
            if( $re->num_rows != 0 ) {
                $ar = $re->fetch_assoc();
                $id = $ar['id'];
                if( session_id() != $_COOKIE['session_id'] ) {
                    setcookie( "session_id", '', strtotime('- 30 days'), '/', 'localhost' );
                    setcookie( "session_id", session_id(), strtotime('+ 30 days'), '/', 'localhost' );
                    $con->query("UPDATE `" . TABLE_PREFIX . "_tbl_sessions` SET session_id = '" . session_id() . "' WHERE id = '$id' " );
                    display_error( $con );
                    $_SESSION['basket'] = unserialize( stripslashes( $ar['data'] ) );
                }else{
                    if( isset( $_SESSION['basket'] ) ) {
                        $con->query("UPDATE `" . TABLE_PREFIX . "_tbl_sessions` SET data = '" . addslashes( serialize( $_SESSION['basket'] ) ) . "' WHERE id = '$id' " );
                        display_error( $con );
                    }
                }   
            }else{
                $con->query( "INSERT INTO `" . TABLE_PREFIX . "_tbl_sessions` ( `session_id`, `stamp`, `data`) VALUES ( '" . $_COOKIE['session_id'] . "', NOW(), '' )" );       
                display_error( $con );
            }
        }else{
            setcookie( "session_id", session_id(), strtotime('+ 30 days'), '/', 'localhost' );
            $_COOKIE['session_id'] = session_id();
        }
    }else{
        die('session has previously been created'); 
    }
    echo 'cookie: ' . $_COOKIE['session_id'] . ' : session(): ' . session_id();
}

function display_error( $con ) {
    if( isset( $con->error ) && $con->error != '' ) {
        die( $con->error );
    }
}

?>

上記の作品！ $_COOKIES['foo'] = 'bar' *しません* スクリプト中にのみブラウザで Cookie を再評価します。

もう 1 つの問題は、複数の Cookie が作成されるのを防ぐために、Cookieのパスとドメインを設定する必要があることでした。動作もスムーズ！

于 2011-03-24T08:00:57.790 に答える