redis 用戶登錄次數(shù)

丶平上 2016-12-14

展開全文

<?php
/**
*
* User: shikiliu
* Date: 14-8-27
*/
class ActiveDate
{
private $redisConf = array('host' => 'localhost', 'port' => 6379);
private $redis = null;
private $userPrefix = 'user_active_';
/**
* 設(shè)置用戶某天登錄過
*/
public function setActiveDate($userId, $time = null)
{
if (emptyempty($time)) {
$time = time();
}
$redis = $this->getRedis();
$redis->setBit($this->userPrefix . $userId . '_' . date('Y-m', $time), intval(date('d', $time)) - 1, 1);
return true;
}
/**
* 得到用戶本月登錄天數(shù)
* redis >= 2.6.0 才可以
*/
public function getActiveDatesCount($userId, $time = null){
if (emptyempty($time)) {
$time = time();
}
$redis = $this->getRedis();
return $redis->bitcount($this->userPrefix . $userId . '_' . date('Y-m', $time));
}
/**
* 得到用戶某月所有的登錄過日期
*/
public function getActiveDates($userId, $time = null)
{
$result = array();
if (emptyempty($time)) {
$time = time();
}
$redis = $this->getRedis();
$strData = $redis->get($this->userPrefix . $userId . '_' . date('Y-m', $time));
if (emptyempty($strData)) {
return $result;
}
$monthFirstDay = mktime(0, 0, 0, date("m", $time), 1, date("Y", $time));
$maxDay = cal_days_in_month(CAL_GREGORIAN, date("m", $time), date("Y", $time));
$charData = unpack("C*", $strData);
for ($index = 1; $index <= count($charData); $index++) {
for ($bit = 0; $bit < 8; $bit++) {
if ($charData[$index] & 1 << $bit) {
//$intervalDay = ($index - 1) * 8 + 8-$bit;
$intervalDay = $index * 8 -$bit;
//如果數(shù)據(jù)有大于當月最大天數(shù)的時候
if ($intervalDay > $maxDay) {
return $result;
}
$result [] = date('Y-m-d', $monthFirstDay + ($intervalDay-1) * 86400);
}
}
}
return $result;
}
/**
* redis連接
*/
private function getRedis()
{
if (emptyempty($this->redis)) {
$redis = new Redis();
if (!$redis->connect($this->redisConf['host'], $this->redisConf['port'])) {
throw new Exception("Error Redis Connect", 100);
}
$redis->select(3);
$this->redis = $redis;
}
return $this->redis;
}
}