First push.

DateTime.php

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+<?php
+
+namespace jDate;
+
+use yii\base\InvalidParamException;
+/**
+ * Jalali date & time.
+ * @author Mohammad Mahdi Qolomian.
+ * @copyright 2014 [email protected]
+ */
+class DateTime
+{
+	function date($dateFormat, $timeStamp = false)
+	{
+		if(! is_string($dateFormat))
+		{
+			throw new InvalidParamException(
+				"Date format is inavlid! " .
+				"It must be string."
+			);
+		}
+
+		$dateTime = new \DateTime('@' . ($timeStamp ?: time()),  new \DateTimeZone('Asia/Tehran'));
+		$dateTime->setTimeZone(new \DateTimeZone('Asia/Tehran'));
+		list($jalaliYear, $jalaliMonth, $jalaliDay) = $this->toJalaliDate(
+			$year	= $dateTime->format('Y'),
+			$month 	= $dateTime->format('m'),
+			$day 	= $dateTime->format('d'));
+
+		$res = '';
+		$skipNextCahr = false;
+		for ($i = 0; $i < strlen($dateFormat); $i++) {
+			$char = $dateFormat[$i];
+			if ($skipNextCahr) {
+				$skipNextCahr = false;
+				$res .= $char;
+				continue;
+			}
+			switch ($char) {
+				case 'A' :
+						if($dateTime->format('a') == 'pm') {
+							$res .= 'بعد از ظهر';
+						} else {
+							$res .= 'قبل از ظهر';
+						}
+					break;
+				case 'a' :
+						if($dateTime->format('a') == 'pm') {
+							$res .= 'ب.ظ';
+						} else {
+							$res .= 'ق.ظ';
+						}
+					break;
+				case 'd':
+					if ($jalaliDay < 10) {
+						$res .= '0' . $jalaliDay;
+					} else {
+						$res .= $jalaliDay;
+					}
+					break;
+				case 'D':
+					$res .= $this->getDayShortName($dateTime->format('D'));
+					break;
+				case 'F':
+					$res .= $this->getMonthName($jalaliMonth);
+					break;
+				case 'g':
+					$res .= $dateTime->format('g');
+					break;
+				case 'G':
+					$res .= $dateTime->format('G');
+					break;
+				case 'h':
+					$res .= $dateTime->format('h');
+					break;
+				case 'H':
+					$res .= $dateTime->format('H');
+					break;
+				case 'i':
+					$res .= $dateTime->format('i');
+					break;
+				case 'j':
+					$res .= $jalaliDay;
+					break;
+				case 'l':
+					$res .= $this->getDayName($dateTime->format('l'));
+					break;
+				case 'm':
+					if ($jalaliMonth < 10) {
+						$res .= '0' . $jalaliMonth;
+					} else {
+						$res .= $jalaliMonth;
+					}
+					break;
+				case 'M':
+					$res .= $this->getShortMonthName($jalaliMonth);
+					break;
+				case 'n':
+					$res .= $jalaliMonth;
+					break;
+				case 's':
+					$res .= $dateTime->format('s');
+					break;
+				case 'S':
+					$res .= 'م';
+					break;
+				case 't':
+					$res .= $this->daysInMonth($month, $day, $year);
+					break;
+				case 'w':
+					$res .= $dateTime->format('w');
+					break;
+				case "y":
+					$res .= substr($jalaliYear, 2);
+					break;
+				case 'o':
+				case "Y":
+					$res .= $jalaliYear;
+					break;
+				case "\\" :
+					$skipNextCahr = true;
+					break;
+				default:
+					$res .= $char;
+					break;
+			}
+		}
+
+		return $res;
+	}
+
+	function __get($var)
+	{
+		return $this->date($var);
+	}
+
+	function toJalaliDate($g_y, $g_m, $g_d) 
+	{
+
+		$g_days_in_month = array(31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31); 
+		$j_days_in_month = array(31, 31, 31, 31, 31, 31, 30, 30, 30, 30, 30, 29);      
+		$gy = $g_y-1600; 
+		$gm = $g_m-1; 
+		$gd = $g_d-1; 
+		$g_day_no = 365*$gy+$this->div($gy+3,4)-$this->div($gy+99,100)+$this->div($gy+399,400); 
+		for ($i=0; $i < $gm; ++$i) 
+			$g_day_no += $g_days_in_month[$i]; 
+
+		if ($gm>1 && (($gy%4==0 && $gy%100!=0) || ($gy%400==0))) 
+			/* leap and after Feb */ 
+			$g_day_no++; 
+		$g_day_no += $gd; 
+		$j_day_no = $g_day_no-79; 
+		$j_np = $this->div($j_day_no, 12053); /* 12053 = 365*33 + 32/4 */ 
+		$j_day_no = $j_day_no % 12053; 
+		$jy = 979+33*$j_np+4*$this->div($j_day_no,1461); /* 1461 = 365*4 + 4/4 */ 
+		$j_day_no %= 1461; 
+		if ($j_day_no >= 366) { 
+
+		  $jy += $this->div($j_day_no-1, 365); 
+
+		  $j_day_no = ($j_day_no-1)%365; 
+
+		} 
+		for ($i = 0; $i < 11 && $j_day_no >= $j_days_in_month[$i]; ++$i) 
+			$j_day_no -= $j_days_in_month[$i]; 
+
+		$jm = $i+1;
+		$jd = $j_day_no+1; 
+		return array($jy, $jm, $jd); 
+
+	}
+
+	function div($a,$b) {
+		return (int) ($a / $b);
+	}
+
+	function getDayNames()
+	{
+		return [
+			'sunday' => 'یکشنیه',
+			'monday' => 'دو شنیه',
+			'tuesdat' => 'سه شنیه',
+			'wednesday' => 'چهار شنیه',
+			'thursday' => 'پنج شنیه',
+			'friday' => 'جمعه',
+			'saturday' => 'شنبه',
+		];
+	}
+	function getDayShortNames()
+	{
+		return [
+			'sun' => 'ی',
+			'mon' => 'د',
+			'tue' => 'س',
+			'wed' => 'چ',
+			'thu' => 'پ',
+			'fri' => 'ج',
+			'sat' => 'ش',
+		];
+	}
+
+	function getDayName($day)
+	{
+		$day = strtolower($day);
+		return isset($this->getDayNames()[$day]) ? $this->getDayNames()[$day] : false;
+	}
+	function getDayShortName($day)
+	{
+		$day = strtolower($day);
+		return isset($this->getDayShortNames()[$day]) ? $this->getDayShortNames()[$day] : false;
+	}
+	function getMonthNames()
+	{
+		return [
+			1 => 'فروردین',
+			2 => 'ردیبهشت',
+			3 => 'خرداد',
+			4 => 'تیر',
+			5 => 'مرداد',
+			6 => 'شهریور',
+			7 => 'مهر',
+			8 => 'آلان',
+			9 => 'آذر',
+			10 => 'دی',
+			11 => 'بهمن',
+			12 => 'اسفند',
+		];
+	}
+
+	function getShortMonthNames()
+	{
+		return [
+			1 => 'فرو',
+			2 => 'ارد',
+			3 => 'خرد',
+			4 => 'تیر',
+			5 => 'مرد',
+			6 => 'شهر',
+			7 => 'مهر',
+			8 => 'آلا',
+			9 => 'آذر',
+			10 => 'دی',
+			11 => 'بهم',
+			12 => 'اسف',
+		];
+	}
+
+	function getMonthName($month)
+	{
+		if ($month < 1 || $month > 12) {
+			throw new InvalidParamException(
+				"Invalid month number. "
+			);
+		}
+
+		$month = (int) $month;
+		return $this->getMonthNames()[$month];
+	}
+
+	function getShortMonthName($month)
+	{
+		if ($month < 1 || $month > 12) {
+			throw new InvalidParamException(
+				"Invalid month number. "
+			);
+		}
+
+		$month = (int) $month;
+		return $this->getMonthNames()[$month];
+	}
+	/**
+	 * Find numbers in month.
+	 */
+	function daysInMonth($month,$day,$year)
+	{
+		$jday2  = "";
+		$jdate2 = "";
+		$lastdayen = date("d",mktime(0,0,0,$month+1,0,$year));
+		list($jyear, $jmonth, $jday) = $this->toJalaliDate($year, $month, $day);
+		$lastdatep=$jday;
+		$jday=$jday2;
+		while ($jday2!="1") {
+			if ($day<$lastdayen) {
+				$day++;
+				list($jyear, $jmonth, $jday2) = $this->toJalaliDate($year, $month, $day);
+				if($jdate2=="1") break;
+				if($jdate2!="1") $lastdatep++;
+			} else {
+				$day=0;
+				$month++;
+				if ($month==13) {
+					$month="1";
+					$year++;
+				}
+			}
+
+		}
+		return $lastdatep-1;
+	}
+}

README.md

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+Jalali Date
+===========
+Jalali date & time is an extension for yii2.
+
+Installation
+------------
+
+The preferred way to install this extension is through [composer](http://getcomposer.org/download/).
+
+Either run
+
+```
+php composer.phar require --prefer-dist mohammad-mahdy/yii2-jdate "*"
+```
+
+or add
+
+```
+"mohammad-mahdy/yii2-jdate": "*"
+```
+
+to the require section of your `composer.json` file.
+
+
+Usage
+-----
+
+Once the extension is installed, add it as a component  :
+
+```php
+'jdate' => [
+	'class' => 'jDate\DateTime'
+]
+```
+
+Now you can use in your project:
+
+```php
+Yii::$app->jdate->date('Y-m-d');
+```
+
+You can access dates and times as variable :
+
+```php
+Yii::$app->jdate->Y;
+```

composer.json

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+{
+    "name": "mohammad-mahdy/yii2-jdate",
+    "description": "Jalali date & time.",
+    "type": "library",
+    "keywords": ["yii2","extension","jDate","Jalali Data Time"],
+    "license": "BSD-3-Clause",
+    "authors": [
+        {
+            "name": "Mohammad Mahdi Qolamian",
+            "email": "[email protected]"
+        }
+    ],
+    "autoload": {
+        "psr-4": {
+            "jDate\\": ""
+        }
+    }
+}