<?php
/*
* Date Created: March 12, 2008
* Create By: Frank Marcelo
* Please feel free to email me: frankitoy@gmail.com
* If you have problems
* first parameter show be greater than second parameter
* dates should be in this format etc September 16, 2008 00:00:00 09/16/2008 01:01:01
*
*/
class Date_Diff
{
public $dateFrom ;
public $dateTo ;
private $intDays ;
private $intHours ;
private $intMinutes ;
private $sError ;
public function getError()
{
return "Invalid date format from dateFrom or dateTo.";
}
public function setDate_Diff( $dateFrom = null , $dateTo = null )
{
$from = $this->isValidDate($dateFrom);
$to = $this->isValidDate($dateTo);
if( $from && $to )
{
$dateDiff = mktime( $from['hour'] , $from['minutes'] , $from['seconds'] ,
$from['month'] , $from['day'] , $from['year'] ) -
mktime( $to['hour'] , $to['minutes'] , $to['seconds'] ,
$to['month'] , $to['day'] , $to['year'] );
$this->intDays = floor( $dateDiff / (60*60*24) );
$this->intHours = floor( ($dateDiff - ($this->intDays*60*60*24) ) / (60*60) );
$this->intMinutes = floor( ($dateDiff - ($this->intDays*60*60*24) - ($this->intHours*60*60) ) /60 );
}
}
public function isValidDate( $sDate = "12/11/2008 00:00:00" )
{
if( !is_null($sDate) && !empty($sDate) )
{
if( preg_match( '/^[0-9][0-9][0-9][0-9]/' , $sDate ) )
{
list( $strFullDate , $strHMS ) = explode( ' ' , $sDate );
list( $year , $month , $day ) = explode( '-' , $strFullDate );
$sDate = $month . DS . $day . DS . $year .' '.$strHMS;
}
$dateString = split( " " , $sDate );
$dateParts = split( "[/-]" , $dateString[0] );
$dateParts2 = split( "[:]" , $dateString[1] );
if( !checkdate($dateParts[0],$dateParts[1],$dateParts[2]) )
{ return false; }
return array
(
'month' => intval($dateParts[0]) ,
'day' => intval($dateParts[1]) ,
'year' => intval($dateParts[2]) ,
'hour' => intval($dateParts2[0]) ,
'minutes' => intval($dateParts2[1]) ,
'seconds' => intval($dateParts2[2])
);
}
else
{
return false;
}
}
public function getDiffInDays()
{ return $this->intDays; }
public function getDiffInHours()
{ return $this->intHours; }
public function getDiffInMinutes()
{ return $this->intMinutes; }
public function getAge( $sDate = "12/11/2008 00:00:00" )
{
$strDateNow = gmdate("m/d/Y H:i:s",time());
$arrOfDateBefore = $this->isValidDate( $sDate );
$arrOfDateNow = $this->isValidDate( $strDateNow );
/*
implement using timezone offset
$offset = +8;
$now = gmdate("m/d/Y H:i:s", time() + (60*60*$offset) );
*/
//print_r($arrOfDateNow);
$this->setDate_Diff( $strDateNow , $sDate );
$intAge = $arrOfDateNow['year'] - $arrOfDateBefore['year'];
if( ( $arrOfDateNow['month'] == $arrOfDateBefore['month'] ) &&
( $arrOfDateNow['day'] >= $arrOfDateBefore['day'] ) &&
( $this->getDiffInMinutes() > 0 ) &&
( $arrOfDateNow['seconds'] >= $arrOfDateBefore['seconds'])
)
{ return $intAge; }
else
{
$intAge--;
return $intAge;
}
}
function __destruct()
{
unset($this->dateFrom);
unset($this->dateTo);
unset($this->intDays);
unset($this->intHours);
unset($this->intMinutes);
}
}
//$date = new Date_Diff();
//$date->setDate_Diff( '02/01/2007 23:02:01', '01/31/2007 22:01:01');
//echo $date->getDiffInMinutes();
//echo $date->getAge( '04/25/1984 05:09:00' );
//echo $date->getDiffInMinutes();
//echo $date->getError();
?>
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