An other solution to remove duplicates entries of a multi-dimensional array based on key…
<?php
function array_unique_multi(array $array, string $key): array
{
$unique = [];
foreach ($array as $v) {
if (!array_key_exists($v[$key], $unique)) {
$unique[$v[$key]] = $v;
}
}
return array_values($unique);
}
$unique = array_unique_multi($users, 'id');
?>
Or to preserve keys…
<?php
function array_unique_amulti(array $array, string $key): array
{
$keys = [];
$unique = [];
foreach ($array as $k => $v) {
if (!isset($keys[$v[$key]])) {
$keys[$v[$key]] = true;
$unique[$k] = $v;
}
}
return $unique;
}
?>
