用php获取本周,上周,本月,上月,本季度日期的代码实例

用php获取本周,上周,本月,上月,本季度日期的代码，方法得到各种日期。

代码如下:

echo date("Ymd",strtotime("now")), "\n"; 
echo date("Ymd",strtotime("-1 week Monday")), "\n"; 
echo date("Ymd",strtotime("-1 week Sunday")), "\n"; 
echo date("Ymd",strtotime("+0 week Monday")), "\n"; 
echo date("Ymd",strtotime("+0 week Sunday")), "\n"; 


//date('n') 第几个月 
//date("w") 本周周几 
//date("t") 本月天数 

echo &#39;<br>上周:<br>&#39;; 
echo date("Y-m-d H:i:s",mktime(0, 0 , 0,date("m"),date("d")-date("w")+1-7,date("Y"))),"\n"; 
echo date("Y-m-d H:i:s",mktime(23,59,59,date("m"),date("d")-date("w")+7-7,date("Y"))),"\n"; 
echo &#39;<br>本周:<br>&#39;; 
echo date("Y-m-d H:i:s",mktime(0, 0 , 0,date("m"),date("d")-date("w")+1,date("Y"))),"\n"; 
echo date("Y-m-d H:i:s",mktime(23,59,59,date("m"),date("d")-date("w")+7,date("Y"))),"\n"; 

echo &#39;<br>上月:<br>&#39;; 
echo date("Y-m-d H:i:s",mktime(0, 0 , 0,date("m")-1,1,date("Y"))),"\n"; 
echo date("Y-m-d H:i:s",mktime(23,59,59,date("m") ,0,date("Y"))),"\n"; 
echo &#39;<br>本月:<br>&#39;; 
echo date("Y-m-d H:i:s",mktime(0, 0 , 0,date("m"),1,date("Y"))),"\n"; 
echo date("Y-m-d H:i:s",mktime(23,59,59,date("m"),date("t"),date("Y"))),"\n"; 

$getMonthDays = date("t",mktime(0, 0 , 0,date(&#39;n&#39;)+(date(&#39;n&#39;)-1)%3,1,date("Y")));//本季度未最后一月天数 
echo &#39;<br>本季度:<br>&#39;; 
echo date(&#39;Y-m-d H:i:s&#39;, mktime(0, 0, 0,date(&#39;n&#39;)-(date(&#39;n&#39;)-1)%3,1,date(&#39;Y&#39;))),"\n"; 
echo date(&#39;Y-m-d H:i:s&#39;, mktime(23,59,59,date(&#39;n&#39;)+(date(&#39;n&#39;)-1)%3,$getMonthDays,date(&#39;Y&#39;))),"\n";

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