Online PHP editor | vld for pEb2p

@ 2015-05-30T16:32:06Z

<?php

$clashes = [
    [
        "s1_id" => 26,
        "s2_id" => 27
    ],
    [
        "s1_id" => 26,
        "s2_id" => 27
    ]
];

array_walk($clashes, function (&$item, $key) use ($item) {
    if (in_array($item, $item, true)) {
        unset($item);
    }
}, array());

var_dump($clashes);

3v4l.org

This is an error 404