php apc缓存以及与redis的对比

function getTimeStamp() {
  $timestr = microtime();
  $timestrary = explode(' ', $timestr);
  $result = intval($timestrary[1])*1000 + intval(floatval($timestrary[0])*1000);
  return $result;
} 
$redis = new Redis();
$redis->connect('127.0.0.1', 6379);
$key = 'key';
$value ='value';
$redis->set($key, $value);
  
apc_store($key, $value, 1); 
  
$begin = getTimeStamp();
for($i = 0 ; $i get($key);
} 
$cost = getTimeStamp() - $begin;
var_dump($cost);
$redis->close();