/**
* Returns the mime type of a file.
*
* @param string $filename
* @return string
*/
public static function getMimeType($filename)
{
if (self::$finfo === null) {
if (!class_exists('\\finfo', false)) {
return '';
}
self::$finfo = new \finfo(FILEINFO_MIME_TYPE);
}
return self::$finfo->file($filename);
}
/**
* Returns memory limit in bytes.
*
* @return integer
*/
public static function getMemoryLimit()
{
if (self::$memoryLimit === null) {
self::$memoryLimit = 0;
$memoryLimit = ini_get('memory_limit');
// no limit
if ($memoryLimit == -1) {
self::$memoryLimit = -1;
}
// completely numeric, PHP assumes byte
if (is_numeric($memoryLimit)) {
self::$memoryLimit = $memoryLimit;
}
// PHP supports 'K', 'M' and 'G' shorthand notation
if (preg_match('~^(\\d+)([KMG])$~', $memoryLimit, $matches)) {
switch ($matches[2]) {
case 'K':
self::$memoryLimit = $matches[1] * 1024;
break;
case 'M':
self::$memoryLimit = $matches[1] * 1024 * 1024;
break;
case 'G':
self::$memoryLimit = $matches[1] * 1024 * 1024 * 1024;
break;
}
}
}
return self::$memoryLimit;
}