predis/lib/Predis/Commands/SetMultiple.php

<?php

namespace Predis\Commands;

class SetMultiple extends Command {
    public function canBeHashed()  { return false; }
    public function getId() { return 'MSET'; }
    public function filterArguments(Array $arguments) {
        if (count($arguments) === 1 && is_array($arguments[0])) {
            $flattenedKVs = array();
            $args = $arguments[0];
            foreach ($args as $k => $v) {
                $flattenedKVs[] = $k;
                $flattenedKVs[] = $v;
            }
            return $flattenedKVs;
        }
        return $arguments;
    }
}