Your IP : 216.73.216.43
<?php
defined( '_JEXEC' ) or die( 'Restricted access' );
class date_time
{
/**
* Shifts from and to dates by $shift_amount of $shift_units.
* are the unit names.
* Modified in my version: I am more familiar with the standard
* units used in the date function provided by PHP so I changed
* the units to them. Also the default in mine is to add dates and
* time radther than subtracting. Cleaned up a bit of the code and
* added checking if a datetime variable is set and if not it will
* use the todays but you are able to input your own to modify.
*
* shift_units:
* months = m;
* days = d;
* years = Y;
* hours = H;
* minutes = i;
* seconds = s;
*
* @author Albert Lash
* @modifed Richard Sumilang
* @param string $datetime TimeStamp of the time you woud like to edit "YYYY-MM-DD HH:MM:SS".
* @param integer $shit_amount The amount you want to shit
* @param string $shift_unit Unit you would like to shift
*
* @return timestamp
*/
static function shift_dates($datetime, $shift_amount, $shift_unit)
{
// Check that $datetime was given
if (!$datetime)
{
$datetime = date("Y-m-d H:i:s");
}
/* Split into separate sections: date and time */
list($date, $time)=preg_split("/ /", $datetime);
/* Break down the date */
list($year, $month, $day)=preg_split("/-/", $date, 3);
/* Break down the time */
list($hour, $min, $sec)=preg_split("/:/", $time, 3);
/* This is the date shifting area */
if ($shift_unit=="m")
{
$newdate = mktime ($hour, $min, $sec, (int)$month + (int)$shift_amount, $day, $year);
$newdate = date("Y-m-d H:i:s", $newdate);
}
elseif ( $shift_unit=="d")
{
$newdate = mktime ($hour, $min, $sec, $month, (int)$day + (int)$shift_amount, $year);
$newdate = date("Y-m-d H:i:s", $newdate);
}
elseif ($shift_unit=="Y")
{
$newdate = mktime ($hour, $min, $sec, $month, $day, (int)$year + (int)$shift_amount);
$newdate = date("Y-m-d H:i:s", $newdate);
}
elseif ($shift_unit=="H")
{
$newdate = mktime ($hour+$shift_amount, $min, $sec, $month, $day, $year);
$newdate = date("Y-m-d H:i:s", $newdate);
}
elseif ($shift_unit=="i")
{
$newdate = mktime ($hour, $min+$shift_amount, $sec, $month, $day, $year);
$newdate = date("Y-m-d H:i:s", $newdate);
}
elseif ($shift_unit=="s")
{
$newdate = mktime ($hour, $min, $sec+$shift_amount, $month, $day, $year);
$newdate = date("Y-m-d H:i:s", $newdate);
}
else
{
echo '<span class="alert alert-warning fcpadded">Unknown shift unit character(s) in configuration: ' . $shift_unit . ' <br/><br/>Supported: Y (year), m (month), d (day), H (hour), i (minutes), s (seconds) </span>';
$newdate = date("Y-m-d H:i:s");
}
return $newdate;
}
/**
* This converts MM-DD-YYYY to YYYY-MM-DD
*
* @author Richard Sumilang
* @param date $date MM-DD-YYYY
* @return string
*/
static function machine_date($date)
{
list($month, $date, $year)=preg_split("/-/", $date);
return $year . "-" . $month . "-" . $date;
}
/**
* This converts YYYY-MM-DD to MM-DD-YYYY
*
* @author Richard Sumilang
* @param date $date YYYY-MM-DD
*
* @return string
*/
static function human_date($date)
{
list($year, $month, $date)=preg_split("/-/", $date);
return $month . "-" . $date . "-" . $year;
}
/**
* This converts stuff like 3:00am to 03:00 and 4:00pm to like 16:00
*
* @author Richard Sumilang
* @param string $time Time in the form of 1:00 or whatever
* @param string $ampm Values are am or pm
* @return string
*/
static function convert_to_24_hr($time, $ampm)
{
// Make sure it's lower case
$ampm=strtolower($ampm);
// Split the time
list($hour, $min)=preg_split("/:/", $time);
switch($ampm)
{
case "am":
$hour=$this->fill_time($hour);
break;
case "pm":
$hour=$hour + 12;
break;
}
$min = $this->fill_time($min);
return $hour . ":" . $min;
}
/**
* This converts stuff like 16:00 to 04:00pm
*
* @author Richard Sumilang
* @param string $time Time in the form of HH:MI
* @return array
*/
static function convert_from_24_hr($time)
{
// Split up the time
list($hour, $min)=preg_split("/:/", $time);
// AM / PM
$ampm = $hour > 12 ? 'pm' : 'am';
// Adjust hour to 0-12
$hour = $hour > 12 ? $hour - 12 : $hour;
// Set hour to 12 instead of 00
$hour = $hour == '00' ? '12' : $hour;
$result=array(
'time' => $hour . ':' . $min,
'ampm' => $ampm
);
return $result;
}
/**
* Add a 0 in front of times with 1 character
*
* @author Richard Sumilang
* @param string $string
* @return string
*/
static function fill_time($string)
{
if (strlen($string)==1)
{
$string = '0' . $string;
}
return $string;
}
}