/**
* Transmit headers that force a browser to display the download file dialog.
* Cross browser compatible. Only fires if headers have not already been sent.
*
* @param string $filename The name of the filename to display to browsers
* @return boolean
*
* @codeCoverageIgnore
*/
public static function download($filename)
{
if (!headers_sent()) {
while (@ob_end_clean()) {
// noop
}
// required for IE, otherwise Content-disposition is ignored
if (Sys::iniGet('zlib.output_compression')) {
Sys::iniSet('zlib.output_compression', 'Off');
}
Sys::setTime(0);
// Set headers
header('Pragma: public');
header('Expires: 0');
header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
header('Cache-Control: private', false);
header('Content-Disposition: attachment; filename="' . basename(str_replace('"', '', $filename)) . '";');
header('Content-Type: application/force-download');
header('Content-Transfer-Encoding: binary');
header('Content-Length: ' . filesize($filename));
// output file
if (Sys::isFunc('fpassthru')) {
$handle = fopen($filename, 'rb');
fpassthru($handle);
fclose($handle);
} else {
echo file_get_contents($filename);
}
return true;
}
return false;
}
/**
* Check is mbstring oeverload standard functions
*
* @return int
*/
public static function isOverload()
{
if (self::isMBString()) {
return (int) Sys::iniGet('mbstring.func_overload') & MB_OVERLOAD_STRING;
}
// @codeCoverageIgnoreStart
return false;
// @codeCoverageIgnoreEnd
}
