wp-includes/class-wp-theme.php:1611Retrieves the path of a file in the theme.
$filestringoptional''stringOne hook fires while WP_Theme::get_file_path() runs, in this order:
Filters the path to a file in the theme.
public function get_file_path( $file = '' ) { $file = ltrim( $file, '/' ); $stylesheet_directory = $this->get_stylesheet_directory(); $template_directory = $this->get_template_directory(); if ( empty( $file ) ) { $path = $stylesheet_directory; } elseif ( $stylesheet_directory !== $template_directory && file_exists( $stylesheet_directory . '/' . $file ) ) { $path = $stylesheet_directory . '/' . $file; } else { $path = $template_directory . '/' . $file; } /** This filter is documented in wp-includes/link-template.php */ return apply_filters( 'theme_file_path', $path, $file ); }Introduced in 5.9.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/class-wp-theme.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.