Finding duplicates in an array

find-dups-array.php

<?php
$array = array('pedro', 'juan', 'paco', 'pedro');
$repeated = array_filter(array_count_values($array), function($count) {
    return $count > 1;
});
foreach ($repeated as $key => $value) {
    echo "Key '$key' is repeated $value times <br />";
}

Thanks