esc_xml │ filter-hook │ WP 5.5.0

Filters a string cleaned and escaped for output in XML.

Text passed to esc_xml() is stripped of invalid or special characters before output. HTML named character references are converted to their equivalent code points.

Usage

add_filter( 'esc_xml', 'wp_kama_esc_xml_filter', 10, 2 );

/**
 * Function for `esc_xml` filter-hook.
 * 
 * @param string $safe_text The text after it has been escaped.
 * @param string $text      The text prior to being escaped.
 *
 * @return string
 */
function wp_kama_esc_xml_filter( $safe_text, $text ){

	// filter...
	return $safe_text;
}

$safe_text(string)

The text after it has been escaped.

$text(string)

The text prior to being escaped.

Changelog

Where the hook is called

return apply_filters( 'esc_xml', $safe_text, $text );

Where the hook is used in WordPress