get_parent_theme_file_uri() WP 1.0

Retrieves the URL of a file in the parent theme.

Works based on: get_template_directory_uri()

Hooks in function

parent_theme_file_uri

Return

String. The URL of the file.

Usage

get_parent_theme_file_uri( $file );

$file(string): File to return the URL for in the template directory.
Default: ''

Code of get parent theme file uri: `wp-includes/link-template.php` ^{WP 5.2.2}

<?php
function get_parent_theme_file_uri( $file = '' ) {
	$file = ltrim( $file, '/' );

	if ( empty( $file ) ) {
		$url = get_template_directory_uri();
	} else {
		$url = get_template_directory_uri() . '/' . $file;
	}

	/**
	 * Filters the URL to a file in the parent theme.
	 *
	 * @since 4.7.0
	 *
	 * @param string $url  The file URL.
	 * @param string $file The requested file to search for.
	 */
	return apply_filters( 'parent_theme_file_uri', $url, $file );
}