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rhukster/dom-sanitizer
======================

A simple but effective DOM/SVG/MathML Sanitizer for PHP 7.4+

1.0.8(2y ago)112.3M—0%44MITPHPPHP >=7.3

Since Sep 22Pushed 1mo ago1 watchersCompare

[ Source](https://github.com/rhukster/dom-sanitizer)[ Packagist](https://packagist.org/packages/rhukster/dom-sanitizer)[ RSS](/packages/rhukster-dom-sanitizer/feed)WikiDiscussions main Synced 1mo ago

READMEChangelog (10)Dependencies (1)Versions (10)Used By (4)Security (1)

DOMSanitizer
============

[](#domsanitizer)

A simple but effective DOM/SVG/MathML Sanitizer for PHP 7.3+. This was created due to my requirements for a performant DOM and specifically SVG sanitizer that was MIT compatible.

This borrows the extensive list of valid tags and attributes in the excellent [DOMPurify](https://github.com/cure53/DOMPurify) library for JavaScript, but uses PHP DOMDocument to parse the DOM and filter out dangerous tags and attributes.

Installation
------------

[](#installation)

```
composer require rhukster/dom-sanitizer
```

Options
-------

[](#options)

Options can be passed to the `sanitize()` method as an optional array. Default values are:

```
$options = [
    'remove-namespaces' => false,
    'remove-php-tags' => true,
    'remove-html-tags' => true,
    'remove-xml-tags' => true,
    'compress-output' => true,
];
```

Usage
-----

[](#usage)

### Sanitizing HTML

[](#sanitizing-html)

The default option but provides with the full list of HTML tags and attributes.

```
require 'vendor/autoload.php';

use Rhukster\DomSanitizer\DOMSanitizer;

$input = file_get_contents('bad.html');

$sanitizer = new DOMSanitizer(DOMSanitizer::HTML);
$output = $sanitizer->sanitize($input, [
    'remove-html-tags' => false,
]);
```

### Sanitizing SVG

[](#sanitizing-svg)

You can limit the valid tags and attributes by passing `DOMSanitizer::SVG` to the constructor. This is advisable if you know you are dealing with SVGs.

```
require 'vendor/autoload.php';

use Rhukster\DomSanitizer\DOMSanitizer;

$input = file_get_contents('bad.svg');
$sanitizer = new DOMSanitizer(DOMSanitizer::SVG);
$output = $sanitizer->sanitize($input);
```

### Sanitizing MathML

[](#sanitizing-mathml)

You can limit the valid tags and attributes by passing `DOMSanitizer::MATHML` to the constructor. This is advisable if you know you are dealing with MathML code.

```
require 'vendor/autoload.php';

use Rhukster\DomSanitizer\DOMSanitizer;

$input = file_get_contents('mathml-sample.xml');
$sanitizer = new DOMSanitizer(DOMSanitizer::MATHML);
$output = $sanitizer->sanitize($input, [
    'compress-output' => false,
]);
```

### Modifying the allowed tags and attributes

[](#modifying-the-allowed-tags-and-attributes)

You have full access to the tags and attributes via the following methods:

```
public function addAllowedTags(array $allowed_tags): void

public function addAllowedAttributes(array $allowed_attributes): void

public function addDisallowedTags(array $disallowed_tags): void

public function addDisallowedAttributes(array $disallowed_attributes): void

public function getAllowedTags(): array

public function setAllowedTags(array $allowed_tags): void

public function getAllowedAttributes(): array

public function setAllowedAttributes(array $allowed_attributes): void

public function getDisallowedTags(): array

public function setDisallowedTags(array $disallowed_tags): void

public function getDisallowedAttributes(): array

public function setDisallowedAttributes($disallowed_attributes): void
```

###  Health Score

48

—

FairBetter than 95% of packages

Maintenance60

Regular maintenance activity

Popularity50

Moderate usage in the ecosystem

Community17

Small or concentrated contributor base

Maturity51

Maturing project, gaining track record

 Bus Factor1

Top contributor holds 96.4% of commits — single point of failure

How is this calculated?**Maintenance (25%)** — Last commit recency, latest release date, and issue-to-star ratio. Uses a 2-year decay window.

**Popularity (30%)** — Total and monthly downloads, GitHub stars, and forks. Logarithmic scaling prevents top-heavy scores.

**Community (15%)** — Contributors, dependents, forks, watchers, and maintainers. Measures real ecosystem engagement.

**Maturity (30%)** — Project age, version count, PHP version support, and release stability.

###  Release Activity

Cadence

Every ~117 days

Recently: every ~233 days

Total

9

Last Release

763d ago

PHP version history (2 changes)1.0.0PHP >=7.4

1.0.4PHP >=7.3

### Community

Maintainers

![](https://www.gravatar.com/avatar/6a85f5988e5b0457d61a12de933780ad099689271767b717feba55f04723c453?d=identicon)[rhukster](/maintainers/rhukster)

---

Top Contributors

[![rhukster](https://avatars.githubusercontent.com/u/1084697?v=4)](https://github.com/rhukster "rhukster (27 commits)")[![DeepDiver1975](https://avatars.githubusercontent.com/u/1005065?v=4)](https://github.com/DeepDiver1975 "DeepDiver1975 (1 commits)")

###  Code Quality

TestsPHPUnit

### Embed Badge

![Health badge](/badges/rhukster-dom-sanitizer/health.svg)

```
[![Health](https://phpackages.com/badges/rhukster-dom-sanitizer/health.svg)](https://phpackages.com/packages/rhukster-dom-sanitizer)
```

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