Alert: This function’s access is marked private. This means it is not intended for use by plugin or theme developers, only in other core functions. It is listed here for completeness.

wp_kses_split2( string $string, array $allowed_html, array $allowed_protocols )

Callback for wp_kses_split for fixing malformed HTML tags.


Description Description

This function does a lot of work. It rejects some very malformed things like <:::>. It returns an empty string, if the element isn’t allowed (look ma, no strip_tags()!). Otherwise it splits the tag into an element and an attribute list.

After the tag is split into an element and an attribute list, it is run through another filter which will remove illegal attributes and once that is completed, will be returned.


Parameters Parameters

$string

(string) (Required) Content to filter

$allowed_html

(array) (Required) Allowed HTML elements

$allowed_protocols

(array) (Required) Allowed protocols to keep


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Return Return

(string) Fixed HTML element


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Source Source

File: wp-includes/kses.php

 *                              'strip', 'data', 'entities', or the name of a field filter such as
 *                              'pre_user_description'.
 * @return array Array of allowed HTML tags and their allowed attributes.
 */
function wp_kses_allowed_html( $context = '' ) {
	global $allowedposttags, $allowedtags, $allowedentitynames;

	if ( is_array( $context ) ) {
		/**
		 * Filters the HTML that is allowed for a given context.
		 *
		 * @since 3.5.0
		 *
		 * @param array[]|string $context      Context to judge allowed tags by.
		 * @param string         $context_type Context name.
		 */
		return apply_filters( 'wp_kses_allowed_html', $context, 'explicit' );
	}

	switch ( $context ) {
		case 'post':
			/** This filter is documented in wp-includes/kses.php */
			$tags = apply_filters( 'wp_kses_allowed_html', $allowedposttags, $context );

			// 5.0.1 removed the `<form>` tag, allow it if a filter is allowing it's sub-elements `<input>` or `<select>`.
			if ( ! CUSTOM_TAGS && ! isset( $tags['form'] ) && ( isset( $tags['input'] ) || isset( $tags['select'] ) ) ) {
				$tags = $allowedposttags;

				$tags['form'] = array(
					'action'         => true,
					'accept'         => true,
					'accept-charset' => true,
					'enctype'        => true,
					'method'         => true,
					'name'           => true,
					'target'         => true,
				);

				/** This filter is documented in wp-includes/kses.php */
				$tags = apply_filters( 'wp_kses_allowed_html', $tags, $context );
			}


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Changelog Changelog

Changelog
Version Description
1.0.0 Introduced.

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