• 生成月份周日的類

<?php class mycalendar {function __construct($year,$mon){$this->nianyue=$year.'-'.$mon.'-'.'01';$this->firstday=strtotime(date($this->nianyue));$this->m = intval(date('m',$this->firstday));$this->wdaylist=array();$this->lday = strtotime(date($this->nianyue).'+1 month -1 day');//echo "時間戳:".date('Y-m-d',$this->lday)."\n"; }function startday(){$w = date('w',$this->firstday);$diffdays=0;if ($w!=0){$diffdays= 7-$w;}$this->firstday = strtotime(date('Y-m-d',strtotime($this->nianyue))."+".$diffdays." day");//array_push($this->wdaylist,$w);//echo "\n".date('Y-m-d',$this->firstday);//echo "\n".$this->firstday;return $this->firstday;}function addwday(){$curday = $this->startday();while (true){if(intval(date('m',$curday)!=$this->m)){break;}//echo date('Y-m-d',$curday)."\n";array_push($this->wdaylist,date('Y-m-d',$curday));$curday=strtotime(date('Y-m-d',$curday)."+7 day");}return $this->wdaylist;} }

• 根據(jù)每個周日推算每個周的日期

<?php require('mycal.php'); class gencal {function __construct(array $wkday){$this->time = strtotime($wkday[count($wkday)-1]);$this->wdaylist=$wkday;$this->ldday= date('m',$this->time);$this->ttday= date('t',$this->time);$this->firstday=strtotime($wkday[0]);}function diffdays(){$lastday = 0;if($this->ldday<$this->ttday){$lastday = strtotime(date('Y-m-d',$this->time)."+1 day");}//echo "this day:".date('Y-m-d',$lastday);return $lastday;}function adddays(){//生成日期輾轉(zhuǎn)相加$genarray = array();$startday = $this->diffdays();//echo $startday."\n";$newday = date('Y-m-d',strtotime(date('Y-m-d',strtotime($this->wdaylist[count($this->wdaylist)-1]))."+1 day"));//echo 'newday:'. $newday;$genarray[] = $newday;for ($i=1;$i<7;$i++){$startday=strtotime(date('Y-m-d',$startday)."+1 day");$genarray[] = date('Y-m-d',$startday);/*array_push($genarray,strtotime(date('Y-m-d',$startday).'+1 day'));*/}return $genarray;}function minus($startday){//輾轉(zhuǎn)相減法$thisweek=array();$startday = strtotime($startday);$thisweek[7]=date('Y-m-d',$startday);//echo $startday;for($i=6;$i>0;$i--){$startday=strtotime(date('Y-m-d',$startday)."-1 day");$thisweek[$i]=date('Y-m-d',$startday);//echo date('Y-m-d',$startday)."---"."\n"; }return $thisweek;}function gendaylist(){$finallist=array();for ($i=0;$i<count($this->wdaylist);$i++){array_push($finallist,$this->minus($this->wdaylist[$i]));}array_push($finallist,$this->adddays());return $finallist;} }

• 測試

$cal = new mycalendar(2019,9); $wuwa= new gencal($cal->addwday()); //$wuwa->adddays(); print_r($wuwa->gendaylist());

• 輸出結(jié)果

Array ([0] => Array([7] => 2019-09-01[6] => 2019-08-31[5] => 2019-08-30[4] => 2019-08-29[3] => 2019-08-28[2] => 2019-08-27[1] => 2019-08-26)[1] => Array([7] => 2019-09-08[6] => 2019-09-07[5] => 2019-09-06[4] => 2019-09-05[3] => 2019-09-04[2] => 2019-09-03[1] => 2019-09-02)[2] => Array([7] => 2019-09-15[6] => 2019-09-14[5] => 2019-09-13[4] => 2019-09-12[3] => 2019-09-11[2] => 2019-09-10[1] => 2019-09-09)[3] => Array([7] => 2019-09-22[6] => 2019-09-21[5] => 2019-09-20[4] => 2019-09-19[3] => 2019-09-18[2] => 2019-09-17[1] => 2019-09-16)[4] => Array([7] => 2019-09-29[6] => 2019-09-28[5] => 2019-09-27[4] => 2019-09-26[3] => 2019-09-25[2] => 2019-09-24[1] => 2019-09-23)[5] => Array([0] => 2019-09-30[1] => 2019-10-01[2] => 2019-10-02[3] => 2019-10-03[4] => 2019-10-04[5] => 2019-10-05[6] => 2019-10-06))

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轉(zhuǎn)載于:https://www.cnblogs.com/saintdingspage/p/11563870.html

總結(jié)

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