<?
/***************************************************************************
|date.php - date manipulate
-------------------
begin : 29/09/2000 12:27:56 EEST
version : 1.1
copyright : (C) Moroz Yuriy, 2001
email : frost@ukrcom.net
***************************************************************************/
class Date
{
var $classname = "Date";
// public
var $strDate;
var $arrayDate = array();
var $separator = "-";
function now()
{
return date("Y-m-d H:i:s",time());
}
/************************************************************
* input: Array or triplet "$day $month $year" or string *
* output: formated string with global $separator *
* string format YYYY-MM-DD *
************************************************************/
function getStr($day,$month="",$year="")
{
$this->convert($day,$month,$year);
return $this->strDate;
}
/************************************************************
* input: Array or triplet "$day $month $year" or string *
* output: Array *
* Array format Date[year]=YYYY, Date[month]=MM, Date[dd]=DD *
************************************************************/
function getArray($day,$month="",$year="")
{
$this->convert($day,$month,$year);
return $this->arrayDate;
}
/************************************************************
* not implemented *
************************************************************/
function add()
{
}
/************************************************************
* not implemented *
************************************************************/
function sub()
{
}
/************************************************************
* input: Array or triplet "$day $month $year" or string *
* output: 1 if left > right *
************************************************************/
function isGreat($left,$right)
{
$aLeft = $this->convert($left);
$aRight = $this->convert($right);
if($aLeft[year] > $aRight[year]){
return 1;
}elseif($aLeft[year] < $aRight[year]){
return 0;
}else{
if($aLeft[month] > $aRight[month]){
return 1;
}elseif($aLeft[month] < $aRight[month]){
return 0;
}else{
if($aLeft[day] > $aRight[day]){
return 1;
}
}
}
return 0;
}
/************************************************************
* input: Array or triplet "$day $month $year" or string *
* output: 1 if left < right *
************************************************************/
function isLess($left,$right)
{
return $this->isGreat($right,$left);
}
/************************************************************
* input: Array or triplet "$day $month $year" or string *
* output: 1 if left = right *
************************************************************/
function isEqual($left,$right)
{
$aLeft = $this->convert($left);
$aRight = $this->convert($right);
if($this->ArrayToStr($aLeft) == $this->ArrayToStr($aRight)){
return 1;
}else{
return 0;
}
}
/************************************************************
* input: Array or triplet "$day $month $year" or string *
* output: 1 if left >= right *
************************************************************/
function isGreatOrEqual($left,$right)
{
$test = $this->isGreat($left,$right) | $this->isEqual($left,$right);
return $test;
}
/************************************************************
* input: Array or triplet "$day $month $year" or string *
* output: 1 is date valid *
************************************************************/
function validate($day,$month="",$year="")
{
$this->convert($day,$month,$year);
/* FIX ME may be make first parameter Array */
if(!preg_match("/^\d{1,2}$/",$this->arrayDate[day])){
return 0;
}
if(!preg_match("/^\d{1,2}$/",$this->arrayDate[month])){
return 0;
}
$year = "20".$year;
if(!preg_match("/^\d{1,4}$/",$this->arrayDate[year])){
return 0;
}
switch($this->arrayDate[month]){
case "03":
case "05":
case "08":
case "12":
case "07":
case "10":
if($this->arrayDate[day] < 32 ){ return 1;}else{ return 0;}
break;
case "01":
case "04":
case "06":
case "09":
case "11":
if($this->arrayDate[day] < 31){ return 1;}else{ return 0;}
break;
case "02":
$leap=(($this->arrayDate[year]-2000)/4);
$type=gettype($leap);
if($type == "integer"){
$daysin="29";
}else{
$daysin="28";
}
if($this->arrayDate[day] < ($daysin+1)){ return 1;}else{ return 0;}
break;
default:
return 0;
}
}
/************************************************************
* input: Array or triplet "$day $month $year" or string *
* output: date Array *
* Array format Date[year]=YYYY, Date[month]=MM, Date[dd]=DD *
************************************************************/
function convert($day,$month="",$year="")
{
if(is_array($day)){
$this->arrayDate = $day;
$this->strDate = $this->ArrayToStr($day);
}elseif(is_string($day) && empty($month)){
$this->strDate = $day;
$this->splitStr($day);
}else{
$this->arrayDate[day] = $day;
$this->arrayDate[month] = $month;
$this->arrayDate[year] = $year;
$this->strDate = $this->ArrayToStr($this->arrayDate);
}
return $this->arrayDate;
}
/************************************************************
* input: Array and separator *
* output: string *
* string format YYYY-MM-DD *
* Array format Date[year]=YYYY, Date[month]=MM, Date[dd]=DD *
************************************************************/
function ArrayToStr($arrayDate,$separator="")
{
if(empty($separator)) $separator = $this->separator;
$str = $arrayDate[year].$separator;
$str .= $arrayDate[month].$separator;
$str .= $arrayDate[day];
return $str;
}
/************************************************************
* input: triplet "$day $month $year" *
* output: string *
* string format YYYY-MM-DD *
************************************************************/
function ToStr($day,$month,$year)
{
$this->arrayDate[day] = $day;
$this->arrayDate[month] = $month;
$this->arrayDate[year] = $year;
return $this->ArrayToStr($this->arrayDate);
}
function splitStr($str)
{
list($this->arrayDate[year],
$this->arrayDate[month],
$this->arrayDate[day] ) = split("-",$str);
/* FIX ME */
if(strlen($this->arrayDate[year]) < 4){
$this->arrayDate[year] = "20".$this->arrayDate[year];
}
}
} // end of class
?>
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