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get_theme_file_uri() WP 1.0

Retrieves the URL of a file in the theme.

Searches in the stylesheet directory before the template directory so themes which inherit from a parent theme can just override one file.

1 time — 0.003745 sec (very slow) | 50000 times — 6.93 sec (fast) | PHP 7.1.5, WP 4.9.4
Hooks from the function

Return

String. The URL of the file.

Usage

get_theme_file_uri( $file );
$file(string)
File to search for in the stylesheet directory.
Default: ''

Changelog

Since 4.7.0 Introduced.

Code of get_theme_file_uri() WP 5.8.1

function get_theme_file_uri( $file = '' ) {
	$file = ltrim( $file, '/' );

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

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

theme path (theme folder url)

Theme files connection

Links (URL)

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