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php-filesize

A flexible library for calculating file sizes and converting between units.

Installation

Include in your project, or, install with Composer:

$ composer require chrisullyott/php-filesize

Instantiate

A FileSize object, both on creation and within its methods, understands just about any expression of data size. You may instantiate it with a size, or leave it initially empty.

use ChrisUllyott\FileSize;

$size = new FileSize('500 GB');

Convert between units

Use as() to export the size in another format.

echo $size->as('MB'); // 512000

The second argument specifies decimal precision (default is 2).

echo $size->as('TB', 3); // 0.488

Use asAuto() to simply get a user-friendly string.

$size = new FileSize('1234522678.12 KB');

echo $size->asAuto(); // '1.15 TB'

Modify the size

To make changes, use add(), subtract(), multiplyBy(), and divideBy(). A variety of file size strings are supported here as well.

$size = new FileSize('4 GB');

$size->add('2G')
     ->subtract('1 gigabytes')
     ->multiplyBy(4)
     ->divideBy(2);

echo $size->asAuto(); // '10.00 GB'

Negative values are supported. In the case below, 1.2 megabytes are subtracted:

$size->add('-1.2mb');

You may also use add() and subtract() with an array of values:

$size->add(['50mb', '140mb', '1.2mb']);

Number base

The second argument of the constructor is the number base, which accepts either 2 (binary) or 10 (decimal). We use binary by default. To handle sizes in decimal:

$size = new FileSize(10921134, 10);

echo $size->asAuto(); // '10.92 MB'

Contribute

Did this library help? Let me know!