Remove duplicates from multidimensional array in PHP

index.php

<?php
$array = array(
    array("Github","https://github.com"),
    array("Pixelsoul","https://pixelsoul.com"),
    array("Pixelsoul","https://pixelsoul.com"),
    array("Acertus","https://www.acertusdelivers.com"),
    array("Github","https://github.com"),
    array("YouTube","https://youtube.com"),
    array("Acertus","https://metrogistics.com")
);

$href = array_unique(array_column($array, 1)); // to get a single level array of just those unique values
$href = array_intersect_key($array, $href); // if I wanted the original array with unique

var_dump(array_values($href)); // array_values to reset the array keys