- var_dump: documentation ( source)
- in_array: documentation ( source)
- array_walk: documentation ( source)
<?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);