WordPress at a glance
function is not described

wp_kses_normalize_entities2() WP 1.0.0

Callback for wp_kses_normalize_entities() regular expression.

This function helps wp_kses_normalize_entities() to only accept 16-bit values and nothing more for &#number; entities.

No Hooks.

Return

String. Correctly encoded entity

Usage

wp_kses_normalize_entities2( $matches );
$matches(array) (required)
preg_replace_callback() matches array

Code of wp kses normalize entities2: wp-includes/kses.php VER 5.0.3

<?php
function wp_kses_normalize_entities2($matches) {
	if ( empty($matches[1]) )
		return '';

	$i = $matches[1];
	if (valid_unicode($i)) {
		$i = str_pad(ltrim($i,'0'), 3, '0', STR_PAD_LEFT);
		$i = "&#$i;";
	} else {
		$i = "&amp;#$i;";
	}

	return $i;
}