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PHP获取本周第一天和最后一天

Jun 08, 2016 pm 05:22 PM
cache date Monday return timestamp

用PHP获取本周第一天和最后一天,网上有很多方法,但是太麻烦,或者有bug,这是用php自带的DateTime类实现的方法,比较简单:

<script>ec(2);</script>

//本周的第一天和最后一天

 代码如下 复制代码
$date=new DateTime();
$date->modify('this week');
$first_day_of_week=$date->format('Y-m-d');
$date->modify('this week +6 days');
$end_day_of_week=$date->format('Y-m-d');


经过测试modity不知道是用做什么了,于时找了另两个例子

 代码如下 复制代码

//这个星期的星期一

// @$timestamp ,某个星期的某一个时间戳,默认为当前时间

// @is_return_timestamp ,是否返回时间戳,否则返回时间格式

function this_monday($timestamp=0,$is_return_timestamp=true){

static $cache ;

$id = $timestamp.$is_return_timestamp;

if(!isset($cache[$id])){

if(!$timestamp) $timestamp = time();

$monday_date = date('Y-m-d', $timestamp-86400*date('w',$timestamp)+(date('w',$timestamp)>0?86400:-/*6*86400*/518400));

if($is_return_timestamp){

$cache[$id] = strtotime($monday_date);

}else{

$cache[$id] = $monday_date;

}

}

return $cache[$id];

 


}


//这个星期的星期天

 代码如下 复制代码

// @$timestamp ,某个星期的某一个时间戳,默认为当前时间

// @is_return_timestamp ,是否返回时间戳,否则返回时间格式

function this_sunday($timestamp=0,$is_return_timestamp=true){

static $cache ;

$id = $timestamp.$is_return_timestamp;

if(!isset($cache[$id])){

if(!$timestamp) $timestamp = time();

$sunday = this_monday($timestamp) + /*6*86400*/518400;

if($is_return_timestamp){

$cache[$id] = $sunday;

}else{

$cache[$id] = date('Y-m-d',$sunday);

}

}

return $cache[$id];

}

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