plugin_basename( string $file ): string

776function plugin_basename( $file ) {777	global $wp_plugin_paths;778 779	// $wp_plugin_paths contains normalized paths.780	$file = wp_normalize_path( $file );781 782	arsort( $wp_plugin_paths );783 784	foreach ( $wp_plugin_paths as $dir => $realdir ) {785		if ( str_starts_with( $file, $realdir ) ) {786			$file = $dir . substr( $file, strlen( $realdir ) );787		}788	}789 790	$plugin_dir    = wp_normalize_path( WP_PLUGIN_DIR );791	$mu_plugin_dir = wp_normalize_path( WPMU_PLUGIN_DIR );792 793	// Get relative path from plugins directory.794	$file = preg_replace( '#^' . preg_quote( $plugin_dir, '#' ) . '/|^' . preg_quote( $mu_plugin_dir, '#' ) . '/#', '', $file );795	$file = trim( $file, '/' );796	return $file;797}