php get uppermost directory code example

Example 1: php get file location

# C:\Users\Redacted\Desktop\main.php
include __DIR__ . DIRECTORY_SEPARATOR . 'include.php';
echoScriptPath();

# C:\Users\Redacted\Desktop\include.php
function echoScriptPath() {
    list($scriptPath) = get_included_files();
    echo 'The script being executed is ' . $scriptPath;
}

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"
*/