This is an easy php class that can convert Gregorian date to Jalali (Shamsi) date by using [JDate] (http://jdf.scr.ir/rahnama/?t=jdate) php functions

You can use this class in your Codeigniter project or your Pure codes by following instructions:

for use in Codeginiter 3 framework, you must copy SDate.php to Application/libraries/SDate.php path and push it into $autoload['libraries'] array:

application/config/autoload.php

$autoload['libraries'] = array("sdate");

also you can load this class in your controller instead define in autoload file:

$this->load->library('sdate');

after load the class, you can access to SDate public methods and jdate functions by following line:

$this->sdate->SOME_METHOD();

It's very simple! just include SDate.php class and create an object from it:

include 'SDate.php';

$sdate = new SDate();
$sdate->SOME_METHOD();