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在开发中，我们往往需要对数据进行统计，而统计离不开时间维度的搜索，因此我们可以建立一个公共的时间类库来生成相关的时间范围。
class StatisticsDate
{
//环比对应的时间戳
const CHAIN_RATIO = [
'today' => 'yesterday',
'week' => 'lastWeek',
'month' => 'lastMonth'
];
//单例模式
protected static $instance;
//返回的时间格式
private $timestamp;
//单例方法
public static function getInstance()
{
if (!self::$instance instanceof StatisticsDate) {
self::$instance = new static();
}
return self::$instance;
}
//设置时间格式 默认为时间戳, 可传入 date 方法的 时间参数
public function setTimestamp($timestamp)
{
$this->timestamp = $timestamp;
return $this;
}
/**
* 传入时间格式 并返回开始时间和结束时间
* @param $dateType
* @return array
*/
public final function execute($dateType)
{
switch ($dateType)
{
case 'today':
$range = $this->getDateRangeByToday();
break;
case 'yesterday':
$range = $this->getDateRangeByYesterday();
break;
case 'week':
$range = $this->getDateRangeByWeek();
break;
case 'lastWeek':
$range = $this->getDateRangeByLastWeek();
break;
case 'month':
$range = $this->getDateRangeByMonth();
break;
case 'lastMonth':
$range = $this->getDateRangeByLastMonth();
break;
default:
$range = [];
}
return $range;
}
/**
* 环比时可以用
* @param $dateType
* @return array
*/
public function chainRatioExecute($dateType)
{
if(!isset(self::CHAIN_RATIO[$dateType]))
{
return [];
}
return $this->execute(self::CHAIN_RATIO[$dateType]);
}
/**
* 返回今天的时间范围
* @return array
*/
protected function getDateRangeByToday()
{
return [
$this->getTime(mktime(0, 0, 0, date('m'), date('d'), date('Y'))),
$this->getTime(mktime(23, 59, 59, date('m'), date('d'), date('Y')))
];
}
/**
* 返回昨日的时间范围
* @return array
*/
protected function getDateRangeByYesterday()
{
$yesterday = date('d') - 1;
return [
$this->getTime(mktime(0, 0, 0, date('m'), $yesterday, date('Y'))),
$this->getTime(mktime(23, 59, 59, date('m'), $yesterday, date('Y')))
];
}
/**
* 获取本周的时间范围
* @return array
*/
protected function getDateRangeByWeek()
{
$timestamp = time();
return [
$this->getTime(strtotime(date('Y-m-d', strtotime("this week Monday", $timestamp)))),
$this->getTime(strtotime(date('Y-m-d', strtotime("this week Sunday", $timestamp))) + 24 * 3600 - 1)
];
}
/**
* 获取上周的时间范围
* @return array
*/
protected function getDateRangeByLastWeek()
{
$timestamp = time();
return [
$this->getTime(strtotime(date('Y-m-d', strtotime("last week Monday", $timestamp)))),
$this->getTime(strtotime(date('Y-m-d', strtotime("last week Sunday", $timestamp))) + 24 * 3600 - 1)
];
}
/**
* 获取本月的时间范围
* @return array
*/
protected function getDateRangeByMonth()
{
return [
$this->getTime(mktime(0, 0, 0, date('m'), 1, date('Y'))),
$this->getTime(mktime(23, 59, 59, date('m'), date('t'), date('Y')))
];
}
/**
* 获取上月的时间范围
* @return array
*/
protected function getDateRangeByLastMonth()
{
$begin = mktime(0, 0, 0, date('m') - 1, 1, date('Y'));
$end = mktime(23, 59, 59, date('m') - 1, date('t', $begin), date('Y'));
return [$this->getTime($begin), $this->getTime($end)];
}
/**
* 按 $this->timestamp 返回时间格式
* @param string $time
* @return false|int|string
*/
public function getTime($time = '')
{
switch (true) {
case (empty($time)):
$timeInt = time();
break;
case (is_numeric($time)):
$timeInt = $time;
break;
case (is_string($time)):
$timeInt = strtotime($time);
if (false == $timeInt) {
$timeInt = time();
}
break;
default:
$timeInt = time();
}
return empty($this->timestamp) ? $timeInt : date($this->timestamp, (int)$timeInt);
}
/**
* 获取给定的开始时间和结束时间的每天时间
* @param int $start
* @param int $end
* @return array|bool
*/
public function getTimeRangeByDateRange(int $start, int $end)
{
if($start > $end)
{
return false;
}
$diff = ($end - $start)/86400;
$day = [];
for ($i = 0; $i <= $diff; $i ++)
{
$day[] = $this->getTime($start + $i* 24 * 60 * 60);
}
return $day;
}
}
使用实例：
StatisticsDate::getInstance()->setTimestamp('Y-m-d')->execute('week');