wpseo_replacement_variables_custom_fields │ хук-фильтр │ Yoast 1.0

Filters the custom fields that are auto-completed and replaced as replacement variables in the meta box and sidebar.

Использование

add_filter( 'wpseo_replacement_variables_custom_fields', 'wp_kama_wpseo_replacement_variables_custom_fields_filter' );

/**
 * Function for `wpseo_replacement_variables_custom_fields` filter-hook.
 * 
 * @param string[] $fields The custom field names.
 *
 * @return string[]
 */
function wp_kama_wpseo_replacement_variables_custom_fields_filter( $fields ){

	// filter...
	return $fields;
}

$fields(string[])

The custom field names.

Где вызывается хук

$fields = apply_filters( 'wpseo_replacement_variables_custom_fields', $fields );

Где используется хук в Yoast SEO