Clase para operaciones sobre fechas

OperationsDate.php

<?php

namespace Helpers;

/*
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/**
 * Description of OperationsDate
 *
 * Dependence for operations on date
 *
 * @author stivenson
 */

use DateTime;


class OperationsDate {


  public function addDaysToCurrentDate($days){
    date_default_timezone_set('america/bogota');
    $today = new DateTime();
    date_add($today, date_interval_create_from_date_string($days.' days'));
    return date_format($today, 'Y-m-d');

  }


  public function addDaysToDate($date,$days){
    $date = new DateTime($date);
    date_add($date, date_interval_create_from_date_string($days.' days'));
    return date_format($date, 'Y-m-d');

  }

  public function lessDaysToDate($date,$days){
    $date = new DateTime($date);

    $date->modify("-".$days." days");

    return date_format($date, 'Y-m-d');

  }

  public function statusClient($effective_end_date){


    if($effective_end_date == null){ return 4;}

    $today = new DateTime();
    $datetime_end_date = new DateTime($effective_end_date);

    if($datetime_end_date >= $today){

      date_add($today, date_interval_create_from_date_string('5 days'));

      if($datetime_end_date <= $today){
        return 2;
      }else{
        return 1;
      }

    }else{
      return 3;
    }
  }


  public function ageOfDate($date_birth){

    $today = date('Y-m-d');

    if(strtotime($today) <= strtotime($date_birth)){
      return '( Indique un fecha valida ) ';
    }

    $diff = abs(strtotime($today) - strtotime($date_birth));
    $years = floor($diff / (365*60*60*24));
    return $years;

  }

  public function daysBetween($effective_starting_date,$effective_end_date){

    if($effective_end_date == null){ return 0;}

    $dias	= (strtotime($effective_starting_date)-strtotime($effective_end_date))/86400;
  	$dias 	= abs($dias); $dias = floor($dias);
  	return $dias;

  }

}