<?php
/**
 * Retrieve path of single template in current or parent template.
 *
 * @since 1.5.0
 *
 * @return string
 */
function get_single_template() {
    $object = get_queried_object();

    $templates = array();

    $templates[] = "single-{$object->post_type}.php";
    $templates[] = "single.php";

    return get_query_template( 'single', $templates );
}


/**
 * Retrieve path to a template
 *
 * Used to quickly retrieve the path of a template without including the file
 * extension. It will also check the parent theme, if the file exists, with
 * the use of {@link locate_template()}. Allows for more generic template location
 * without the use of the other get_*_template() functions.
 *
 * @since 1.5.0
 *
 * @param string $type Filename without extension.
 * @param array $templates An optional list of template candidates
 * @return string Full path to file.
 */
function get_query_template( $type, $templates = array() ) {
    $type = preg_replace( '|[^a-z0-9-]+|', '', $type );

    if ( empty( $templates ) )
        $templates = array("{$type}.php");

    return apply_filters( "{$type}_template", locate_template( $templates ) );
}