Little function to safely concatenate some paths easily

gistfile1.php

<?php
	function path() {
		$paths = func_get_args();

		$prefix = '';
		$suffix = '';

		if (substr(current($paths), 0, 1) == DIRECTORY_SEPARATOR) {
			$prefix = DIRECTORY_SEPARATOR;
		}

		if (substr(end($paths), -1, 1) == DIRECTORY_SEPARATOR) {
			$suffix = DIRECTORY_SEPARATOR;
		}

		foreach ($paths as $key => $path) {
			$paths[$key] = trim($path, DIRECTORY_SEPARATOR);
		}
		$path = $prefix . implode(DIRECTORY_SEPARATOR, $paths) . $suffix;

		return $path;
	}
	
	echo path('/some', 'path', 'somewhere/') . chr(10);
	// => /some/path/somewhere/
	echo path('/some', '/path/', 'somewhere') . chr(10);
  	// => /some/path/somewhere
	echo path('some', '/path/', '/somewhere/') . chr(10);
	// => some/path/somewhere/
?>