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