<?php

$array = [[1,2,3,4], [4,2,3,1], [18,3,22,9], [23, 12, 33, 55]];

$matches = array();
$array = array_filter($array, function($ar) use (&$matches) {
	sort($ar);
	if(in_array($ar, $matches)) {
		return false;
	}
	$matches[] = $ar;
	return true;
});

var_dump($array);