php擷取時間代碼小結分享

本文主要和大家分享php擷取時間代碼小結，希望能讓小夥伴們對php擷取時間有一個更深的理解和掌握。

1. <?php      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";         echo "*********第幾個月:";      echo date('n');      echo "*********本周周幾:";      echo date("w");      echo "*********本月天數:";      echo date("t");      echo "*********";      echo '<br>上周特定周幾</br>';    echo date('Y-m-d',strtotime('-1 monday', $time));      echo '<br>上周起始時間:<br>';      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 '<br>本周起始時間:<br>';      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";       //從第幾周找出該周的開始日期和結束日期      $dayNumber = date('W') * 7;      $weekDayNumber = date("w", mktime(0, 0, 0, 1, $dayNumber, date("Y")));//當前周的第幾天      $startNumber = $dayNumber - $weekDayNumber;      echo date("Y-m-d", mktime(0, 0, 0, 1, $startNumber + 1, date("Y")));//開始日期      echo date("Y-m-d", mktime(0, 0, 0, 1, $startNumber + 7, date("Y")));//結束日期         echo '<br>上月起始時間:<br>';      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 '<br>本月起始時間:<br>';      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";         $season = ceil((date('n'))/3);//當月是第幾季度      echo '<br>本季度起始時間:<br>';      echo date('Y-m-d H:i:s', mktime(0, 0, 0,$season*3-3+1,1,date('Y'))),"\n";      echo date('Y-m-d H:i:s', mktime(23,59,59,$season*3,date('t',mktime(0, 0 , 0,$season*3,1,date("Y"))),date('Y'))),"\n";         $season = ceil((date('n'))/3)-1;//上季度是第幾季度      echo '<br>上季度起始時間:<br>';      echo date('Y-m-d H:i:s', mktime(0, 0, 0,$season*3-3+1,1,date('Y'))),"\n";      echo date('Y-m-d H:i:s', mktime(23,59,59,$season*3,date('t',mktime(0, 0 , 0,$season*3,1,date("Y"))),date('Y'))),"\n";  ?>