EngineGP/system/library/help.php

<?php
    if(!DEFINED('EGP'))
        exit(header('Refresh: 0; URL=http://'.$_SERVER['SERVER_NAME'].'/404'));

    class help
    {
        public static function text($text)
        {
            $etext = '';

            $aStr = explode("\n", htmlspecialchars($text));

            foreach($aStr as $line => $str)
            {
                $check = str_replace(' ', '', $str);

                if(isset($aStr[$line+1]) AND ($check == '' AND str_replace(' ', '', $aStr[$line+1]) == ''))
                    continue;
                else{
                    $etext .= rtrim(str_replace("\t", '    ', $str))."\n";

                    continue;
                }

                if($check != '')
                    $etext .= rtrim(str_replace("\t", '    ', $str))."\n";
            }

            $str_search = array(
                "#\\\n#is",
                "#\[spoiler\](.+?)\[\/spoiler\]#is",
                "#\[sp\](.+?)\[\/sp\]#is",
                "#\[b\](.+?)\[\/b\]#is",
                "#\[u\](.+?)\[\/u\]#is",
                "#\[code\](.+?)\[\/code\]#is",
                "#\[quote\](.+?)\[\/quote\]#is",
                "#\[url=(.+?)\](.+?)\[\/url\]#is",
                "#(^|[\n ])([\w]+?://[\w\#$%&~/.\-;:=,?@\[\]+]*)#is"
            );

            $str_replace = array(
                "<br>",
                "<div><b class='spoiler'>Посмотреть содержимое</b><div class='spoiler_main'>\\1</div></div>",
                "<div><b class='spoiler'>Посмотреть содержимое</b><div class='spoiler_main'>\\1</div></div>",
                "<b>\\1</b>",
                "<u>\\1</u>",
                "<div><b class='spoiler'>Посмотреть содержимое</b><div class='spoiler_main'><pre><code>\\1</code></pre></div></div>",
                "<blockquote><p>\\1</p></blockquote>",
                "<a href='\\1' target='_blank'>\\2</a>",
                " <a href='\\2' target='_blank'>\\2</a>"
            );

            return preg_replace($str_search, $str_replace, $etext);
        }

        public static function ago($time, $brackets = false)
        {
            global $start_point;

            $diff = $start_point-$time;

            if($diff < 0)
                return '';

            if(!$diff)
                $diff = 1;

            $seconds = array('секунду', 'секунды', 'секунд');
            $minutes = array('минуту', 'минуты', 'минут');
            $hours = array('час', 'часа', 'часов');
            $days = array('день', 'дня', 'дней');
            $weeks = array('неделю', 'недели', 'недель');
            $months = array('месяц', 'месяца', 'месяцев');
            $years = array('год', 'года', 'лет');

            $phrase = array($seconds, $minutes, $hours, $days, $weeks, $months, $years);
            $length = array(1, 60, 3600, 86400, 604800, 2630880, 31570560);

            for($i = 6; ($i >= 0) AND (($no = $diff/$length[$i]) <= 1); $i-=1);

            if($i < 0)
                $i = 0;

            $_time = $start_point-($diff % $length[$i]);
            $no = ceil($no);

            if($brackets)
                return '('.$no.' '.help::parse_ago($no, $phrase[$i]).' назад)';

            return $no.' '.help::parse_ago($no, $phrase[$i]).' назад';
        }

        private static function parse_ago($number, $titles)
        {
            $cases = array(2, 0, 1, 1, 1, 2);

            return $titles[($number % 100 > 4 AND $number % 100 < 20 ) ? 2 : $cases[min($number % 10, 5)]];
        }
    }
?>