Ticket #9730: 9730-plugin.php

<?php
/**
 * Plugin Name: #9730 Test Plugin
 * Plugin URI: http://core.trac.wordpress.org/ticket/9730
 * Description: Test Plugin to test the <a href="http://core.trac.wordpress.org/changeset/10897">date_i18n hook</a>.
 * Author: hakre
 * Version: 0.1
 * Author URI: http://codex.wordpress.org/User:Hakre
 */
class plugin9730Test {
 
    public function __construct() {
        add_filter('date_i18n', array($this, 'date_i18n'), 10, 4);
    }
    
    /** date_i18n sample callback 
     * 
     * format timestamps according to the moodate standard. that is persian number in the year 
     * I felt like a timeless beauty.
     * 
     * @param string $date          input date. unfiltered value provided by WP
     * @param string $req_format    required format string. @see http://php.net/manual/en/function.date.php
     * @param int    $unixtimestamp input timestamp (UTC value). 
         * @param bool   $gmt           Whether to convert to GMT for time. Optional, default is false.
     * @return unknown_type
     */
    public function date_i18n($date, $req_format, $unixtimestamp, $gmt) {
                
        $mood_year = 'in the year I felt like a timeless beauty.';
        
        $datefunc = $gmt? 'gmdate' : 'date';
                
        $format = $req_format;
        $format = preg_replace( "/([^\\\])[yY]/", "\\1" . backslashit( $mood_year ), $format );              
        $date = $datefunc($format, $unixtimestamp);
        $date = $this->do_latin_to_persian($date);
                                
        return $date;   
    }
    
        /** Converts Latin digits to Persian ones
         *
         * some functions to play with.
         * 
         * @see #7753
         * @param  string $number
         * @return string
         */
        function do_latin_to_persian($number) {
                $latin = array('0', '1', '2', '3', '4', '5', '6', '7', '8', '9'); 
                $persian = array('۰', '۱', '۲', '۳', '۴', '۵', '۶', '۷', '۸', '۹');
                return str_replace($latin, $persian, $number);
        }
}
$plugin9730Test = new plugin9730Test();
?>