A PHP class which offers a way to escape output and defend from XSS and related vulnerabilities by introducing HTML, CSS and Javascript escaping context.

Phower\Escaper is inspired in Zend's escaper component and both attempt to minimize the risks from the second most important OWASP web security risk.

This package uses Composer tool for auto-loading and dependency management. From your project root folder just run:

composer require phower/escaper

Simply instantiate your object as usual:

``` php
use Phower\Escaper;

$escaper = new Escaper();
```

Class constructor supports a argument which allows to specify a given encoding format. E.g you can escape code from iso-8859-1 using:

``` php
use Phower\Escaper;

$escaper = new Escaper('iso-8859-1');
```

This package is meant to be used for code output escaping only. Looking the implemented interface there are five methods available for that:

• escapeHtml: escape a string for the HTML Body context.
• escapeHtmlAttr: escape a string for the HTML Attribute context.
• escapeJs: escape a string for the Javascript context.
• escapeCss: escape a string for the CSS context.
• escapeUrl: escape a string for the URI or Parameter contexts.