PHP date format and date calculation and get the current week, month and tail date

Source: Internet
Author: User
Tags date format empty end return string


PHP date formatting and date calculation and when getting before week, month and end date



PHP date format Sample code:


/ **
     * Formatting time
     * $ type: type
     * $ strDate: time string to be processed
     *
     * Year Y: four-digit year y: two-digit year
     * Month m: two-digit month n: one-digit month M: English month
     * Date d: Two-digit date j: One-digit date D: English date
     * Hour: H, minute: i, second: s
     ** /
    public function GetFormatDate ($ type = 1, $ strDate = '') {
            $ time = time ();
            if (isset ($ strDate) &&! empty ($ strDate)) {
                $ time = strtotime ($ strDate);
            }

            switch ($ type) {
                case 1:
                   return date ("H: i", $ time);
                case 2:
                    return date ("m month d H: i", $ time);
                case 3:
                    return date ("m / d H: i", $ time);
                case 4:
                    return date ("Y: m, d, H: i", $ time);
                case 5:
                    return date ("Y / m / d H: i", $ time);
                case 6:
                    return date ("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 be processed
     * $days:   Add and Subtract days
     **/public
    function ChangeDate ($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, the month-and-tail date sample code:


/ **
     * Get the beginning and end of the current week and month
     *
     * $ dateArr ['W1']: Monday
     * $ dateArr ['W7']: Weekend
     * $ dateArr ['M1']: month head
     * $ dateArr ['M2']: end of the month
     ** /
    public function GetCurrentDateInfo () {
       $ dayTimes = 24 * 60 * 60;
       $ dateArr = []; $ temp = '';

       $ weekIndex = (int) date ('w');
       switch ($ weekIndex) {
            case 0:
                $ dateArr ['W1'] = date ('Y-m-d 00: 00: 00', strtotime ('+ 1 day'));
                $ 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'));
                break;
            case 3:
                $ dateArr ['W1'] = date ('Y-m-d 00: 00: 00', strtotime ('-2 day'));
                $ dateArr ['W7'] = date ('Y-m-d 23: 59: 59', strtotime ('+ 4 day'));
                break;
            case 4:
                $ dateArr ['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', strtotime ('-4 day'));
                $ dateArr ['W7'] = date ('Y-m-d 23: 59: 59', strtotime ('+ 2 day'));
                break;
            case 6:
                $ dateArr ['W1'] = date ('Y-m-d 00: 00: 00', strtotime ('-5 day'));
                $ dateArr ['W7'] = date ('Y-m-d 23: 59: 59', strtotime ('+ 1 day'));
                break;
        }


       // 1-12: January to December
       $ 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');
               $ dateArr ['M2'] = date ('Y-m-d 23: 59: 59', strtotime ($ temp)-$ dayTimes);
               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:
               $ temp = date ('Y-04-01 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 4:
               $ temp = date ('Y-05-01 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 5:
               $ temp = date ('Y-06-01 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 6:
               $ temp = date ('Y-07-01 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 7:
               $ temp = date ('Y-08-01 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 8:
               $ temp = date ('Y-09-01 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 9:
               $ temp = date ('Y-10-01 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 10:
               $ temp = date ('Y-11-01 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 11:
               $ temp = date ('Y-12-01 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 12:
               $ temp = date ((date ('Y') + 1). "-01-01 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;
       }


       return $ dateArr;
    }

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




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