keys()

keys():返回一个数组，里面是符合匹配模式的键列表

 $redis = new Redis();
   $redis->connect('127.0.0.1', 6379);
   $pattern = "name:*";
   $redis->setnx("name:1","huahua1");
   $redis->setnx("name:2","huahua2");
   $redis->setnx("name:3","huahua3");
   $keysList = $redis->keys($pattern);
   var_dump($keysList);die