Parse, manipulate, humanize, and format bytes.

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v1.0.0 2023-07-26 15:23 UTC

This package is auto-updated.

Last update: 2024-02-16 01:26:19 UTC


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A value object to parse, manipulate, humanize, and format bytes.


composer require zenstruck/bytes


Create a Zenstruck\Bytes object and access its value:

use Zenstruck\Bytes;

$bytes = Bytes::parse(1024); // create from number of bytes as integer
$bytes->value(); // (int) 1024

$bytes = Bytes::parse('1.54kb'); // create from a quantity suffixed by a valid informational unit
$bytes->value(); // (int) 1540

$bytes = Bytes::parse('1.54 KiB'); // can use binary informational units
$bytes->value(); // (int) 1577


By default, when a Zenstruck\Bytes object is converted to a string, it humanizes the to make it easier to read.

use Zenstruck\Bytes;

(string) Bytes::parse(389789364783); // "389.79 GB"

You can customize the formatting:

use Zenstruck\Bytes;

Bytes::parse(389789364783)->format('%.4f%s'); // "389.7894GB"

Unit Conversion

If you'd like a consistent unit to be used when formatting, use the to() method with a valid informational unit:

use Zenstruck\Bytes;

(string) Bytes::parse(389789364783)->to('mib'); // "371732.11 MiB"


Perform add and subtract operations:

use Zenstruck\Bytes;

/** @var Bytes $first */
/** @var Bytes $second */
/** @var Bytes $third */

$result = $first // $result instanceof Bytes
    ->add($second) // add another Bytes object
    ->add(500) // add specific amount of bytes
    ->add('2.1 MB') // parse and add
    ->subtract($third) // subtract another Bytes object
    ->subtract(100) // subtract specific amount of bytes
    ->subtract('100 kib') // parse and subtract

Note: These operations are immutable.


You can compare Zenstruck\Byte objects:

use Zenstruck\Bytes;

/** @var Bytes $bytes */
/** @var Bytes $another */

$bytes->isEqualTo(100); // bool
$bytes->isEqualTo('1.1kb'); // bool
$bytes->isEqualTo($another); // bool

$bytes->isGreaterThan(100); // bool
$bytes->isGreaterThan('1.1kb'); // bool
$bytes->isGreaterThan($another); // bool

$bytes->isLessThan(100); // bool
$bytes->isLessThan('1.1kb'); // bool
$bytes->isLessThan($another); // bool

$bytes->isGreaterThanOrEqualTo(100); // bool
$bytes->isGreaterThanOrEqualTo('1.1kb'); // bool
$bytes->isGreaterThanOrEqualTo($another); // bool

$bytes->isLessThanOrEqualTo(100); // bool
$bytes->isLessThanOrEqualTo('1.1kb'); // bool
$bytes->isLessThanOrEqualTo($another); // bool