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<?php
namespace Drupal\Component\Utility;
/**
* Provides helper methods for byte conversions.
*/
class Bytes {
/**
* The number of bytes in a kilobyte.
*
* @see http://wikipedia.org/wiki/Kilobyte
*/
const KILOBYTE = 1024;
/**
* Parses a given byte size.
*
* @param mixed $size
* An integer or string size expressed as a number of bytes with optional SI
* or IEC binary unit prefix (e.g. 2, 3K, 5MB, 10G, 6GiB, 8 bytes, 9mbytes).
*
* @return int
* An integer representation of the size in bytes.
*/
public static function toInt($size) {
// Remove the non-unit characters from the size.
$unit = preg_replace('/[^bkmgtpezy]/i', '', $size);
// Remove the non-numeric characters from the size.
$size = preg_replace('/[^0-9\.]/', '', $size);
if ($unit) {
// Find the position of the unit in the ordered string which is the power
// of magnitude to multiply a kilobyte by.
return round($size * pow(self::KILOBYTE, stripos('bkmgtpezy', $unit[0])));
}
else {
return round($size);
}
}
}