从离线更新数据库

Question

我刚刚使用 PHP Mysql 创建了一个 Web 应用程序，我想将此系统安装在本地服务器和在线 Web 服务器中。但是当 Not Net Connection 时，它存储在本地 mysql 中并自动更新或同步在线 mysql 数据。

请帮帮我怎么可能..我刚刚使用过这个但不工作。

            <form action ='#' method ='post' enctype='multipart/form-data'>
                            <div class="form-group">

                                        <input type='hidden' class="form-control" value='<?php echo $dbname;?>' name='dbname' required>
                            </div>

                            <div class="form-group">
                                        <label>Upload Photograph </label>
                                        <input type="file" name='backup_file'>
                            </div>
                            <input type="submit" class="btn btn-primary" value='Restore' name='submit'>
            </form>


<?php

include_once('conn.php');
// ------------ Upload Process  -------------------------------//
if(isset($_FILES['backup_file']))
{                               
$file = $_FILES ['backup_file'];
$name1 = $file ['name'];
$type = $file ['type'];
$size = $file ['size'];
$tmppath = $file ['tmp_name']; 



if (!is_dir('upload')) 
{
    mkdir('upload');     
}

if( !move_uploaded_file ($tmppath, 'upload/'.$name1))
{
Echo ("Error In File Upload");
}


# UPDATING PROCESS STRAT HERE #

$mysqli = new mysqli('localhost', 'database_user', 'database_password', 'dbname');

if (mysqli_connect_error()) {
    die('Connect Error (' . mysqli_connect_errno() . ') '
            . mysqli_connect_error());
}

echo 'Success... ' . $mysqli->host_info . "<br />";
echo 'Retrieving dumpfile' . "<br />";

$sql = file_get_contents('upload/'.$name1);
if (!$sql){
    die ('Error opening file');
}

echo 'processing file <br />';

mysqli_multi_query($mysqli,$sql);

echo "<h4> Backup Updated Successfully. </h4>";
echo "<h2> Thanks for Using ..GURU DAKSHINA</h2>";

$mysqli->close();

}
?>

Answer 1

<?php
$dbname = $_COOKIE['database'];

backup_tables('localhost','user','password',$dbname);

/* backup the db OR just a table */
    function backup_tables($host,$user,$pass,$dbname,$tables = '*')
    {
        $return='';
        $link = mysql_connect($host,$user,$pass);
        mysql_select_db($dbname,$link);

        //get all of the tables
        if($tables == '*')
        {
            $tables = array();
            $result = mysql_query('SHOW TABLES');
            while($row = mysql_fetch_row($result))
            {
                $tables[] = $row[0];
            }
        }
        else
        {
            $tables = is_array($tables) ? $tables : explode(',',$tables);
        }

        //cycle through
        foreach($tables as $table)
        {
            $result = mysql_query('SELECT * FROM '.$table);
            $num_fields = mysql_num_fields($result);
            $return.= 'DROP TABLE IF EXISTS '.$table.';';
            $row2 = mysql_fetch_row(mysql_query('SHOW CREATE TABLE '.$table));
            $return.= "\n\n".$row2[1].";\n\n";

            for ($i = 0; $i < $num_fields; $i++) 
            {
                while($row = mysql_fetch_row($result))
                {
                    $return.= 'INSERT INTO '.$table.' VALUES(';
                    for($j=0; $j<$num_fields; $j++) 
                    {
                        $row[$j] = addslashes($row[$j]);
                        $row[$j] = ereg_replace("\n","\\n",$row[$j]);
                        if (isset($row[$j])) { $return.= '"'.$row[$j].'"' ; } else { $return.= '""'; }
                        if ($j<($num_fields-1)) { $return.= ','; }
                    }
                    $return.= ");\n";
                }
            }
            $return.="\n\n\n";
        }


    //save file

    $handle = fopen('backup-'.$dbname.'-'.date('d-m-y').'.sql','w+');

    $backup = 'backup-'.$dbname.'-'.date('d-m-y').'.sql';

    fwrite($handle,$return);
    fclose($handle);

        function uploadfile($file)
        {
            $ftp_server = "ftp.domain.com";
            $ftp_user_name = "user@domain.com";
            $ftp_user_pass = "ftp_password";
            // open some file for reading
            //$file = $bname;
            $fp = fopen($file, 'r');

            // set up basic connection
            $conn_id = ftp_connect($ftp_server);

            // login with username and password
            $login_result = ftp_login($conn_id, $ftp_user_name, $ftp_user_pass);

            // try to upload $file
            if (ftp_fput($conn_id, $file, $fp, FTP_ASCII)) {
                echo "Backup Successfully Uploaded \n";
            } else {
                echo "There was a problem while uploading $file\n";
            }

            // close the connection and the file handler
            ftp_close($conn_id);
            fclose($fp);
        }

    uploadfile($backup);

    $link ='http://domain.com/update.php?bname='.$backup.'&dbname='.$dbname;
    //echo "<br><a href='http://domain.com/update.php?bname=$backup&dbname=$dbname' target='_blank'> Click Here </a> to Update Database online";

    echo("<div class='alert alert-success alert-dismissable'>
                                <button type='button' class='close' data-dismiss='aler' aria-hidden='true'>&times;</button>
                                <i class='fa fa-inbox fa-2x'> </i> <a href='$link' target='new' class='alert-link'>Click Here </a>to Update Database Online.
                            </div> ");
    }

?>
</div>
</div>