<?php 
$file = 'dbexport.sql'; 
 
if (file_exists($file)) { 
    header('Content-Description: File Transfer'); 
    header('Content-Type: application/octet-stream'); 
    header('Content-Disposition: attachment; filename="'.basename($file).'"'); 
    header('Expires: 0'); 
    header('Cache-Control: must-revalidate'); 
    header('Pragma: public'); 
    header('Content-Length: ' . filesize($file)); 
    readfile($file); 
    exit; 
} 
?> 
 
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