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                [TOC] php獲取當月天數及當月第一天及最后一天、上月第一天及最后一天實現方法 * * * * * #### 1.獲取上個月第一天及最后一天 ~~~ echo date('Y-m-01', strtotime('-1 month')); echo "<br/>"; echo date('Y-m-d', strtotime(date('Y-m-01') . ' -1 day')); // 計算出本月第一天再減一天 echo "<br/>"; ~~~ #### 2.獲取當月第一天及最后一天 ~~~ $BeginDate=date('Y-m-01', strtotime(date("Y-m-d"))); echo $BeginDate; echo "<br/>"; echo date('Y-m-d', strtotime("$BeginDate +1 month -1 day")); echo "<br/>"; ~~~ #### 3.獲取當天年份、月份、日及天數 ~~~ echo " 本月共有:".date("t")."天"; echo " 當前年份".date('Y'); echo " 當前月份".date('m'); echo " 當前幾號".date('d'); echo "<br/>"; ~~~ #### 4.使用函數及數組獲取當月第一天及最后一天 ~~~ function getthemonth($date) { $firstday = date('Y-m-01', strtotime($date)); $lastday = date('Y-m-d', strtotime("$firstday +1 month -1 day")); return array($firstday,$lastday); } $today = date("Y-m-d"); $day=getthemonth($today); echo "當月的第一天: ".$day[0]." 當月的最后一天: ".$day[1]; echo "<br/>"; ~~~
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