PHP Internship Redis lock mechanism

<?PHPclassredis_lock{ Public Static functionGetredis () {$redis=NewRedis (); $redis->connect (' 182.254.208.72 ', 3838, 0); $redis->auth (' eh.123 '); return $redis; }     Public Static functionLock$key,$expire= 60)    {        if(!$key) {            return false; }        $redis= Self::Getredis ();  Do {            if($acquired= ($redis->setnx ("lock:{$key}", Time()))) {//If Redis does not exist, it succeeds                $redis->expire ($key,$expire);  Break; }            Usleep($expire); }  while(true); return true; }    //Release Lock     Public Static functionRelease$key)    {        if(!$key) {            return false; }        $redis= Self::Getredis (); $redis->del ("lock:{$key}"); $redis-Close (); }}$redis= Redis_lock::Getredis (); Redis_lock:: Lock (' Lock ');$re=$redis->get (' Sentiger ');$re--;$redis->set (' Sentiger ',$re); Redis_lock:: Release (' Lock ');?>

Tests can be tested with AB test tools

PHP Internship Redis lock mechanism