wp_kses_split() WordPress Function
The wp_kses_split() function is used to split a string of HTML into an array of elements. This function is useful for making sure that only valid HTML elements are included in a string.
wp_kses_split( string $string, array[]|string $allowed_html, string[] $allowed_protocols ) #
Searches for HTML tags, no matter how malformed.
Description
It also matches stray > characters.
Parameters
- $string
- (string)(Required)Content to filter. 
- $allowed_html
- (array[]|string)(Required)An array of allowed HTML elements and attributes, or a context name such as 'post'. See wp_kses_allowed_html() for the list of accepted context names. 
- $allowed_protocols
- (string[])(Required)Array of allowed URL protocols. 
Return
(string) Content with fixed HTML tags
Source
File: wp-includes/kses.php
function wp_kses_split( $string, $allowed_html, $allowed_protocols ) {
	global $pass_allowed_html, $pass_allowed_protocols;
	$pass_allowed_html      = $allowed_html;
	$pass_allowed_protocols = $allowed_protocols;
	return preg_replace_callback( '%(<!--.*?(-->|$))|(<[^>]*(>|$)|>)%', '_wp_kses_split_callback', $string );
}
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Changelog
| Version | Description | 
|---|---|
| 1.0.0 | Introduced. |