go back 2 directories php code example

Example 1: import file 3 directories back

//Current Directory
./index.js

//One Directory Up
../index.js

//Two Directories Up
../../index.js

Example 2: php dirname

// dirname ( string $path [, int $levels = 1 ] ) : string

<?php
echo dirname("/etc/passwd") . PHP_EOL;
echo dirname("/etc/") . PHP_EOL;
echo dirname(".") . PHP_EOL;
echo dirname("C:\\") . PHP_EOL;
echo dirname("/usr/local/lib", 2);

// Above example outputs:

/*
	"/etc"
	"/" (or "\" on Windows)
	"."
	"C:\"
	"/usr"
*/