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See Release Notes
Long Term Support Release

  • Bug fixes for general core bugs in 4.1.x will end 13 November 2023 (12 months).
  • Bug fixes for security issues in 4.1.x will end 10 November 2025 (36 months).
  • PHP version: minimum PHP 7.4.0 Note: minimum PHP version has increased since Moodle 4.0. PHP 8.0.x is supported too.

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Defines 1 class

HTMLPurifier_Filter:: (2 methods):
  preFilter()
  postFilter()


Class: HTMLPurifier_Filter  - X-Ref

Represents a pre or post processing filter on HTML Purifier's output

Sometimes, a little ad-hoc fixing of HTML has to be done before
it gets sent through HTML Purifier: you can use filters to acheive
this effect. For instance, YouTube videos can be preserved using
this manner. You could have used a decorator for this task, but
PHP's support for them is not terribly robust, so we're going
to just loop through the filters.

Filters should be exited first in, last out. If there are three filters,
named 1, 2 and 3, the order of execution should go 1->preFilter,
2->preFilter, 3->preFilter, purify, 3->postFilter, 2->postFilter,
1->postFilter.

preFilter($html, $config, $context)   X-Ref
Pre-processor function, handles HTML before HTML Purifier

param: string $html
param: HTMLPurifier_Config $config
param: HTMLPurifier_Context $context
return: string

postFilter($html, $config, $context)   X-Ref
Post-processor function, handles HTML after HTML Purifier

param: string $html
param: HTMLPurifier_Config $config
param: HTMLPurifier_Context $context
return: string