<?
/**
* Converts string date to date array by using date patterns.
*
* Example usage : $sd->parseDate("Y-m-d H:i:s","2008-4-24 20:28:34");
* Returns : array( "Year"=>2008,
* "Month"=>4,
* "Day"=>24,
* "Hour"=>20,
* "Minute"=>28,
* "Second"=>34,
* "Timezone"=>"+0300"
* );
*
*/
class dateparser{
var $date;
var $tempdate;
var $patrVal;
var $timezone;
var $days3 = array("Mon","Tue","Wed","Thu","Fri","Sat","Sun");
var $days = array("Monday","Tuesday","Wednesday","Thursday","Friday","Saturday","Sunday");
var $month3 = array("Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec");
var $month = array("January","February","March","April","May","June","July","August","September","October","November","December");
var $types=array(
"d"=>"([0-9]{2})",
"D"=>"([a-zA-z]{3})",
"j"=>"([0-9]{1,2})",
"l"=>"([A-Z][a-z]{4,7})",
"N"=>"([1-7])",
"S"=>"(st|nd|rd|th)",
"w"=>"([0-6])",
"z"=>"([0-9]{3})",
"W"=>"([0-9]{2})",
"F"=>"([A-Z][a-z]{2,8})",
"m"=>"([0-9]{2})",
"M"=>"([A-Za-z]{3})",
"n"=>"([0-9]{1,2})",
"t"=>"(28|29|30|31)",
"L"=>"(1|0)",
"o"=>"([0-9]{4})",
"Y"=>"([0-9]{4})",
"y"=>"([0-9]{2})",
"a"=>"(am|pm)",
"A"=>"(AM|PM)",
"B"=>"([0-9]{3})",
"g"=>"([1-12])",
"G"=>"([0-9]|1[0-9]|2[0-3])", // Contributor: MadMind
"h"=>"([0-9]{2})",
"H"=>"([0-9]{2})",
"i"=>"([0-9]{2})",
"s"=>"([0-9]{2})",
"u"=>"([0-9]{1,5})",
"e"=>"([A-Za-z0-9_]{3,})",
"I"=>"(1|0)",
"O"=>"(\+[0-9]{4})",
"P"=>"(\+[0-9]{2}:[0-9]{2})",
"T"=>"([A-Z]{1,4})",
"Z"=>"(-?[0-9]{1,5})",
"c"=>"(\d\d\d\d)(?:-?(\d\d)(?:-?(\d\d)(?:[T](\d\d)(?::?(\d\d)(?::?(\d\d)(?:\.(\d+))?)?)?(?:Z|(?:([-+])(\d\d)(?::?(\d\d))?)?)?)?)?)?",
"r"=>"([a-zA-Z]{2,}),\040(\d{1,})\040([a-zA-Z]{2,})\040([0-9]{4})\040([0-9]{2}):([0-9]{2}):([0-9]{2})\040([+-][0-9]{4})",
"U"=>"(\d+)"
);
/**
* function which tests regex pattern for validity :
* Test regexes and throw exception if they don't parse well
*
* @param string $regex
* @return true/throw exception
* Contributor : Glenn Plas
*/
function preg_test($regex) {
if (sprintf("%s",@preg_match($regex,'')) == '') {
$error = error_get_last();
throw new Exception(substr($error['message'],70));
} else {
return true;
}
}
# 0-7 Day
# 8 Week
# 9-13 Month
# 14-17 Year
# 18-27 Time
# 28-33 Timezone
/**
* Internal function which generates regex pattern from date pattern
*
* @param string $dateformat
* @return string
*/
function generatePattern($dateformat){
$k=0;
$datearray = preg_split("//",$dateformat);
$patternkey = array();
for($i=0;$i<count($datearray);$i++){
if($datearray[$i-1]=="@"){ $patternkey[$i]=$datearray[$i];}
elseif($datearray[$i]=="@"){$patternkey[$i]="";}
elseif($datearray[$i]==" "){$patternkey[$i]="\040";}
elseif(in_array($datearray[$i],array_keys($this->types))){
$patternkey[$i]=$this->types[$datearray[$i]];
$this->patrVal[$k] = array_search($datearray[$i],array_keys($this->types));
$k++;
}else{$patternkey[$i]=$datearray[$i];}
}
$patternkey = implode("",$patternkey);
return "/".$patternkey."/";
}
/**
* Converts the string date to array by using the pattern generated by generatePattern() function
*
* @param string $dateformat
* @param string $date
* @param boolean $localize
* @return array
*/
function parseDate($dateformat,$date,$localize=false){
$newdate="";
$dateformat = str_replace(array("\\","\t"),array("@","@t"),$dateformat);
$pattern = $this->generatePattern($dateformat);
$this->preg_test($pattern);
// Exception will be thrown here when its trying to match a non-valid regex (which Glenn Plas fixed)
preg_match_all($pattern,$date,$newdate);
$newdate = array_slice($newdate,1);
if($this->patrVal[0]==34){
$resultvar = array("Year"=>$newdate[0],
"Year"=>$newdate[0][0],
"Month"=>$newdate[1][0],
"Day"=>$newdate[2][0],
"Hour"=>$newdate[3][0],
"Minute"=>$newdate[4][0],
"Second"=>$newdate[5][0],
"Timezone"=>$newdate[6][0].$newdate[7][0].$newdate[8][0]);
}elseif($this->patrVal[0]==35){
$resultvar = array("Year"=>$newdate[0],
"Year"=>$newdate[3][0],
"Month"=>(array_search($newdate[2][0],$this->month3)+1),
"Day"=>$newdate[1][0],
"Hour"=>$newdate[4][0],
"Minute"=>$newdate[5][0],
"Second"=>$newdate[6][0],
"Timezone"=>$newdate[7][0]);
}elseif($this->patrVal[0]==36){
$result = getdate(mktime($newdate));
$resultvar = array(
"Year"=>$result["year"],
"Month"=>array_search($result["month"],$this->month)+1,
"Day"=>$result["mday"],
"Hour"=>$result["hours"],
"Minute"=>$result["minutes"],
"Second"=>$result["seconds"],
"Timezone"=>date("O"));
}else{
$labels = array_keys($this->types);
for($i=0;$i<count($newdate);$i++)$result[$labels[$this->patrVal[$i]]]=$newdate[$i][0];
if($result["F"]) $month = array_search($result["F"],$this->month)+1;
elseif($result["M"]) $month = array_search($result["M"],$this->month3)+1;
elseif($result["m"]) $month = $result["m"];
elseif($result["n"]) $month = $result["n"];
if($result["d"]) $day = $result["d"];
elseif($result["j"]) $day = $result["j"];
if($result["Y"]) $year = $result["Y"];
elseif($result["o"]) $year = $result["o"];
elseif($result["y"]) $year = ($result["y"]>substr(date("Y",time()),2,2))?(substr(date("Y",time()),0,2)-1).$result["y"]:substr(date("Y",time()),0,2).$result["y"];
if($result["l"]) $weekday = array_search($result["l"],$this->days)+1;
elseif($result["D"]) $weekday = array_search($result["D"],$this->days3)+1;
elseif($result["N"]) $weekday = $result["N"];
elseif($result["w"]) $weekday = $result["w"];
else $weekday = @date("w",mktime(0,0,0,$month,$day,$year));
if($result["H"]) $hour = $result["H"];
elseif ($result["G"]) $hour = $result["G"];
elseif ($result["h"]) $hour = ($result["A"]=="PM"|$result["a"]=="pm")?($result["h"]+12):($result["h"]);
elseif ($result["g"]) $hour = ($result["A"]=="PM"|$result["a"]=="pm")?($result["g"]+12):($result["g"]);
//--
if($result["P"]) {
$timezone = $result["P"] ;
}
elseif($result["O"]) {
$timezone = $result["O"] ;
}
elseif ($result["Z"]) {
$timezone = ($result["Z"]/3600);
}
else {
$timezone = date("O");
}
//--
$minutes = $result["i"];
$seconds = $result["s"];
$resultvar = array(
"Year"=>$year,
"Month"=>$month,
"Day"=>$day,
"WeekDay"=>$weekday,
"Hour"=>$hour,
"Minute"=>$minutes,
"Second"=>$seconds,
"Timezone"=>$timezone);
}
//set unset value (Contributor : Babbo Naria)
if(is_null($resultvar["Hour"])) {
$resultvar["Hour"]=0;
}
if(is_null($resultvar["Minute"])) {
$resultvar["Minute"]=0;
}
if(is_null($resultvar["Second"])) {
$resultvar["Second"]=0;
}
if(is_null($resultvar["Year"])) {
$resultvar["Year"]=1970;
}
if(is_null($resultvar["Month"])) {
$resultvar["Month"]=01;
}
if(is_null($resultvar["Day"])) {
$resultvar["Day"]=01;
}
return ($localize)?$this->Localize($resultvar):$resultvar;
}
/**
* Returns the difference between two days as datetime array
*
* @param string $pattern1
* @param string $date1
* @param string $pattern2
* @param string $date2
* @return array
*/
function diffDate($pattern1,$date1,$pattern2,$date2){
$pdate1 = $this->parseDate($pattern1,$date1);
$pdate2 = $this->parseDate($pattern2,$date2);
$compare = $this->Compare($pdate1,$pdate2);
if($compare==1){
$ndate = $pdate1;
$odate = $pdate2;
}elseif($compare==-1){
$ndate = $pdate2;
$odate = $pdate1;
}else{
return array("Year"=>0,"Month"=>0,"Day"=>0,"Hour"=>0,"Minute"=>0,"Second"=>0);
}
$hour = intval($ndate["Hour"])-intval($odate["Hour"]);
$minute = intval($ndate["Minute"])-intval($odate["Minute"]);
$second = intval($ndate["Second"])-intval($odate["Second"]);
$month = intval($ndate["Month"])-intval($odate["Month"]);
$day = intval($ndate["Day"])-intval($odate["Day"]);
$year = intval($ndate["Year"])-intval($odate["Year"]);
$difference = mktime($hour,$minute,$second,($month+1),($day+1),($year+1970));
$result = getdate($difference);
$resultvar = array(
"Year"=>$result["year"]-1970,
"Month"=>array_search($result["month"],$this->month),
"Day"=>$result["mday"]-1,
"Hour"=>$result["hours"],
"Minute"=>$result["minutes"],
"Second"=>$result["seconds"],
"Timezone"=>$this->timezone);
return $resultvar;
}
/**
* Reformats the given date as same as the first date() function variable.
*
* @param string $patternTo
* @param string $patternFrom
* @param string $date
* @return string
*/
function Format($patternTo,$patternFrom,$date){
$temp = $this->parseDate($patternFrom,$date);
return date($patternTo,mktime($temp["Hour"],$temp["Minute"],$temp["Second"],$temp["Month"],$temp["Day"],$temp["Year"]));
}
/**
* Not Completed localization function. Adds time to result which is defined by user in $this->timezone,
*
* @param array $date
* @return array
*/
function Localize($date){
$zonehour = $date["Hour"] + intval(substr($this->timezone,0,1).substr($this->timezone,1,2));
$zonemin = $date["Minute"] + intval(substr($this->timezone,3,2));
$newdate = mktime($zonehour,$zonemin,intval($date["Second"]),intval($date["Month"]),intval($date["Day"]),intval($date["Year"])); //Burada bir hata oldu.
$result = getdate($newdate);
$resultvar = array(
"Year"=>$result["year"],
"Month"=>array_search($result["month"],$this->month)+1,
"Day"=>$result["mday"],
"Hour"=>$result["hours"],
"Minute"=>$result["minutes"],
"Second"=>$result["seconds"],
"Timezone"=>"");
return $resultvar;
}
/**
* Compares two date, returns 1 if first is bigger, -1 if second is bigger and 0 if they are same
*
* @param array $date1
* @param array $date2
* @return int
*/
function Compare($date1,$date2){
if($date1["Year"]>$date2["Year"]) return 1;
if($date1["Year"]<$date2["Year"]) return -1;
if($date1["Month"]>$date2["Month"]) return 1;
if($date1["Month"]<$date2["Month"]) return -1;
if($date1["Day"]>$date2["Day"]) return 1;
if($date1["Day"]<$date2["Day"]) return -1;
if($date1["Hour"]>$date2["Hour"]) return 1;
if($date1["Hour"]<$date2["Hour"]) return -1;
if($date1["Minute"]>$date2["Minute"]) return 1;
if($date1["Minute"]<$date2["Minute"]) return -1;
if($date1["Second"]>$date2["Second"]) return 1;
if($date1["Second"]<$date2["Second"]) return -1;
return 0;
}
}
?>
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