WordPress at a glance
function is not described

WP_Customize_Manager::_sanitize_external_header_video() public WP 4.7.1

Callback for sanitizing the external_header_video value.

{} It's a method of the class: WP_Customize_Manager{}

No Hooks.

Return

String. Sanitized URL.

Usage

$WP_Customize_Manager = new WP_Customize_Manager();
$WP_Customize_Manager->_sanitize_external_header_video( $value );
$value(string) (required)
URL.

Changelog

Since 4.7.1 Introduced.

Code of WP_Customize_Manager::_sanitize_external_header_video() WP 5.7.2

<?php
public function _sanitize_external_header_video( $value ) {
	return esc_url_raw( trim( $value ) );
}