PHP date formatting and date calculation as well as getting the current week, month and tail date _php tutorial

PHP date formatting and date calculation as well as getting the current week, month and tail date

PHP date formatting and date calculation as well as when getting previous week, month tail date

PHP date formatting Sample code:

   /** * Format time * $type: Type * $strDate: Time string to process * * Year y: four-digit year y: two-bit year * Month M: two-digit month N: one digit month Part M: English month * Date D: Two digit date J: one digit Date D: English date *: H, min: I, SEC: s **/public Function getformatdate ($type = 1, $strDat            E= ') {$time = time ();            if (Isset ($strDate) &&!empty ($strDate)) {$time = Strtotime ($strDate);                } switch ($type) {case 1:return date ("H:i", $time);                Case 2:return Date ("M-D-Day h:i", $time);                Case 3:return Date ("M/d h:i", $time);                Case 4:return Date ("Y year m D-Day H:i", $time);                Case 5:return Date ("Y/m/d h:i", $time);                Case 6:return Date ("Y year m D-Day H:i:s", $time);                Case 7:return Date ("Y-m-d h:i:s", $time); Case 8:return Date ("Y/m/d h:i:S ", $time);            Default:return $strDate; }    }

Date Calculation Sample code:

   /**     * time plus minus processing     * $strDate: Time string to process     * $days:   Add and Subtract days     **/public    function ChangeDate ($strDate, $ Days) {          $time = time ();          if (Isset ($strDate) &&!empty ($strDate)) {              $time = Strtotime ($strDate);          }         Return date (' y-m-d h:i:s ', Strtotime ("$days Day", $time));    }

Get the current week, month, and tail date sample code:

   /**     *   Get current week, month's Day and tail date      *     *   $DATEARR [' W1 ']: Monday   &NB Sp  *   $DATEARR [' W7 ']: weekends      *   $DATEARR [' M1 ']: month-end      *   $DATEARR [' M2 ' ]: Month      **/    public Function getcurrentdateinfo () {        $dayTimes = 24*6 0*60;        $DATEARR = []; $temp = ';        $weekIndex = (int) Date (' W ');  &NB Sp     switch ($weekIndex) {            case 0:                $DATEARR [' W1 '] = Date (' y-m-d 00:00:00 ', Strtotime (' +1 Day '));            &NBSP ;    $DATEARR [' W7 '] = Date (' y-m-d 23:59:59 ', Strtotime (' +7 Day '));                break;            case 1:                $DATEARR [' W1 '] = date (' y-m-d 00:00:00 ');                $DATEARR [' W7 '] = Date (' y-m-d 23:59:59 ', Strtotime (' +6 Day ');                break;            Case 2:                 $DATEARR [' W1 '] = Date (' y-m-d 00:00:00 ', Strtotime ('-1 day '));                $DATEARR [' W7 '] = Date (' y-m-d 23:59:59 ', Strtotime (' +5 Day '));    &NBSP ;           break;            case 3:        &NBS P        $DATEARR [' W1 '] = Date (' y-m-d 00:00:00 ', Strtotime ('-2 Day '));                $DATEARR [' W7 '] = Date (' y-m-d 23:59:59 ', Strtotime (' +4 Day '));            &NBSP ;   break;            case 4:                $dat earr[' W1 '] = Date(' y-m-d 00:00:00 ', Strtotime ('-3 day '));                $DATEARR [' W7 '] = Date (' y-m-  D 23:59:59 ', Strtotime (' +3 day ');                break;            Case 5:                $DATEARR [' W1 '] = Date (' y-m-d 00:00:00 ', Strto Time ('-4 day '));                $DATEARR [' W7 '] = Date (' y-m-d 23:59:59 ', Strtotime (' +2 Day ");                break;            Case 6:& nbsp                $DATEARR [' W1 '] = Date (' y-m-d 00:00:00 ', Strtotime ('-5 day '));                $DATEARR [' W7 '] = Date (' y-m-d 23:59:59 ', Strtotime (' +1 Day '));    &NBSP ;           break;       }       //1-12: January to December   &NB Sp     $monthIndex = (int) date (' m ');       switch ($monthIndex) {             Case 1:                $temp = Date (' y-02-01 00:00:00 ');                $DATEARR [' M1 '] = Date (' y-m-01 00:00:00 ');              &NBS p; $dateArr [' M2 '] = Date (' y-m-d 23:59:59 ', Strtotime ($temp)-$dayTimes);              & nbsp;break;           case 2:                $temp = Date (' y-03-01 00:00:00 ');                $DATEARR [' M1 '] = Date (' y-m-01 00:00:00 ');                 $DATEARR [' M2 '] = Date (' y-m-d 23:59:59 ', Strtotime ($temp)-$dayTimes );               break;           case 3:  &nbs P         &NBSp   $temp = Date (' y-04-01 00:00:00 ');                $DATEARR [' M1 '] = Date (' y-m-0 1 00:00:00 ');                $DATEARR [' M2 '] = Date (' y-m-d 23:59:59 ', Strtotime ($tem P)-$dayTimes);               break;           case 4 :                $temp = Date (' y-05-01 00:00:00 ');        &NBSP ;       $DATEARR [' M1 '] = Date (' y-m-01 00:00:00 ');                $dateA rr[' M2 ' = Date (' y-m-d 23:59:59 ', Strtotime ($temp)-$dayTimes);                break;           case 5:                $temp = Date ( ' y-06-01 00:00:00 ');                $DATEARR [' M1 '] = Date (' y-m-01 00:00:00 '); &nbsp ;       &NBSp       $DATEARR [' M2 '] = Date (' y-m-d 23:59:59 ', Strtotime ($temp)-$dayTimes);                break;           case 6:                $temp = Date (' y-07-01 00:00:00 ');                $DATEARR [' M1 '] = dat E (' y-m-01 00:00:00 ');                $DATEARR [' M2 '] = Date (' y-m-d 23:59:59 ', Strtot IME ($temp)-$dayTimes);               break;          &NBS P;case 7:                $temp = Date (' y-08-01 00:00:00 ');      &NBS P         $DATEARR [' M1 '] = Date (' y-m-01 00:00:00 ');              &NBSP ; $dateArr [' M2 '] = Date (' y-m-d 23:59:59 ', Strtotime ($temp)-$dayTimes);              & nbsp;break;    &nbsP      case 8:                $temp = Date (' y-09-01 00:00:00 ');                $DATEARR [' M1 '] = Date (' y-m-01 00:00:00 ');        &NBSP ;       $DATEARR [' M2 '] = Date (' y-m-d 23:59:59 ', Strtotime ($temp)-$dayTimes);                break;           case 9:                $temp = Date (' y-10-01 00:00:00 ');                $DATEARR [' M1 '] = dat E (' y-m-01 00:00:00 ');                $DATEARR [' M2 '] = Date (' y-m-d 23:59:59 ', Strtot IME ($temp)-$dayTimes);               break;          &NBS P;case 10:                $temp = Date (' y-11-01 00:00:00 ');      &NB Sp         $DATEARR [' M1 '] = Date (' y-m-01 00:00:00 ');                $DATEARR [' M2 '] = date ( ' Y-m-d 23:59:59 ', Strtotime ($temp)-$dayTimes);               break;           case 11:                $temp = Date (' y-12-01 00:00:00 ') ;                $DATEARR [' M1 '] = Date (' y-m-01 00:00:00 ');      &NBS P         $DATEARR [' M2 '] = Date (' y-m-d 23:59:59 ', Strtotime ($temp)-$dayTimes);               break;           case 12:        &NBSP ;       $temp = date (date (' Y ') +1). " -01-01 00:00:00 ");                $DATEARR [' M1 '] = Date (' y-m-01 00:00:00 ');  & nbsp             $DATEARR [' M2 '] = Date (' y-m-d 23:59:59 ', Strtotime ($temp)-$dayTimes);               break;       }     return $dateArr;   }

The above code is for reference only, the omission also please point out in order to improve!

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