duangu1868
2015-01-28 11:16
浏览 55
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使用PHP从MySQL创建zip文件

I am trying to put a XML file from MySQL database to a zip archive before downloading. I am able to create zip file but Windows is giving error while opening it.

error msg: window cannot open the foler. filename.zip is invalid

Here is my code:

 <?php

if(isset($_GET['id'])) 
{

    $id  = intval($_GET['id']);


    if($id <= 0) {
        die('The id is invalid!');
    }
    else 
{
        // Connect to the database
        $dbLink = new mysqli('localhost', 'root', 'root', 'db');
        if(mysqli_connect_errno()) {
            die("MySQL connection failed: ". mysqli_connect_error());
        }



 $zip = new ZipArchive();
$filename = "export_".date('Y.m.d H.i').".zip";

if ($zip->open($filename, ZIPARCHIVE::CREATE | ZIPARCHIVE::OVERWRITE) !== true)
{
    echo "Cannot Open for writing";
}


$zip->addEmptyDir('Section');

$query = "SELECT name,data FROM file_section WHERE id ='$id'";   
$result = $dbLink->query($query);


 if($result->num_rows == 1) 
     {          
 // Get the row

     $row = mysqli_fetch_array($result);
 }
while($row = mysql_fetch_array($result))
{
    $zip->addFile($row['data'], "{$row['name']}.xml");
}

$zip->close();



    header("Content-disposition: attachment; filename='.$filename'");
    header('Content-type: application/zip');


    readfile($fileName);
    }


            // Free the mysqli resources
            mysqli_free_result($result);
        }
        else {
            echo "Error! Query failed: <pre>{$dbLink->error}</pre>";
        }
        mysqli_close($dbLink);


?>

P.S.: I have limited PHP knowledge.

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