Odpočet času s vlastní hláškou

<meta http-equiv="refresh" content="1;url=odpocet.php">
<?php

/***************************************************************
*  Copyright notice
*
*  (c) 2012 Julian P.
*  All rights reserved
*
*  The GNU General Public License can be found at
*  http://www.gnu.org/copyleft/gpl.html.
*  A copy is found in the textfile GPL.txt and important notices to the license
*  from the author is found in LICENSE.txt distributed with these scripts.
*
*
*  This script is distributed in the hope that it will be useful,
*  but WITHOUT ANY WARRANTY; without even the implied warranty of
*  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
*  GNU General Public License for more details.
*
*  This copyright notice MUST APPEAR in all copies of the script!
***************************************************************/

class countdown {
    
    protected $year;
    protected $month;
    protected $day;
    protected $hour;
    protected $minute;
    protected $second;
    protected $format;

    /*
     * constructor initializes the countdown-object
     * 
     * @param int $year
     * @param int $month
     * @param int $day
     * @param int $hour
     * @param int $minute
     * @param int $second
     * @param string $format
     *
     * return void
     */
    function __construct($year=NULL, $month=NULL, $day=NULL, $hour=NULL, $minute=NULL, $second=NULL, $format=NULL) {
        if($year == NULL) { $this->year = date('Y'); } else { $this->year = $year; }
        if($month == NULL) { $this->month = date('m'); } else { $this->month = $month; }
        if($day == NULL) { $this->day = date('d'); } else { $this->day = $day; }
        if($hour == NULL) { $this->hour = 0; } else { $this->hour = $hour; }
        if($minute == NULL) { $this->minute = 0; } else { $this->minute = $minute; }
        if($second == NULL) { $this->second = 0; } else { $this->second = $second; }        
        if($format == NULL) { $this->format = '%y %m %d %h %m'; } else { $this->format = strtolower($format); }
    }
    
    /*
     * set the year of the specific date
     * 
     * @param int $year
     *
     * return void
     */
    public function setYear($year) {
        $this->year = $year;
    }
    
    /*
     * get the year of the specific date
     *
     * return int
     */
    protected function getYear() {
        return $this->year;
    }
    
    /*
     * set the month of the specific date
     * 
     * @param int $month
     *
     * return void
     */
    public function setMonth($month) {
        $this->month = $month;
    }
    
    /*
     * get the month of the specific date
     *
     * return int
     */
    protected function getMonth() {
        return $this->month;
    }
    
    /*
     * set the day of the specific date
     * 
     * @param int $day
     *
     * return void
     */
    public function setDay($day) {
        $this->day = $day;
    }
    
    /*
     * get the day of the specific date
     *
     * return int
     */
    protected function getDay() {
        return $this->day;
    }
    
    /*
     * set the hour of the specific date
     * 
     * @param int $hour
     *
     * return void
     */
    public function setHour($hour) {
        $this->hour = $hour;
    }
    
    /*
     * get the hour of the specific date
     *
     * return int
     */
    protected function getHour() {
        return $this->hour;
    }
    
    /*
     * set the minute of the specific date
     * 
     * @param int $minute
     *
     * return void
     */
    public function setMinute($minute) {
        $this->minute = $minute;
    }
    
    /*
     * get the minute of the specific date
     *
     * return int
     */
    protected function getMinute() {
        return $this->minute;
    }
    
    /*
     * set the second of the specific date
     * 
     * @param int $second
     *
     * return void
     */
    public function setsecond($second) {
        $this->second = $second;
    }
    
    /*
     * get the second of the specific date
     *
     * return int
     */
    protected function getSecond() {
        return $this->second;
    }
    
    /*
     * set the format of the output
     * 
     * @param string $format
     *
     * return void
     */
    public function setFormat($format) {
        $this->format = $format;
    }
    
    /*
     * get the format of the output
     *
     * return string
     */
    protected function getFormat() {
        return $this->format;
    }
    
    /*
     * get the remaining time by given date/time
     *
     * return string
     */
    public function getTimeRemaining() {
        $start = time();
        $end = mktime($this->getHour(), $this->getMinute(), $this->getSecond(), $this->getMonth(), $this->getDay(), $this->getYear());
        $span = ($end-$start);

        if( strstr($this->format, '%d') ) {
            $oneDay = (60 * 60 * 24);
            $day = floor($span / $oneDay); 
            $span = $span % $oneDay; 

            $this->setFormat( str_replace('%d', $day, $this->getFormat()) );
        }
        
        if( strstr($this->format, '%h') ) {
            $oneHour = (60 * 60);
            $hour = floor($span / $oneHour); 
            $span = $span % $oneHour;
            
            $this->setFormat( str_replace('%h', $hour, $this->getFormat()) );
        }
        
        if( strstr($this->format, '%m') ) {
            $minute = floor($span / 60);
        
            $this->setFormat( str_replace('%m', $minute, $this->getFormat()) );
        }
        
        if( strstr($this->format, '%s') ) {
            $second = $span % 60;
            
            $this->setFormat( str_replace('%s', $second, $this->getFormat()) );
        }
        
        return $this->getFormat();
    }
    
}

// ---- 
// ---- EXAMPLE ---- EXAMPLE ---- EXAMPLE ---- EXAMPLE ---- EXAMPLE ---- EXAMPLE ---- EXAMPLE ----
// ---- 

$c = new countdown();
/* 
 * Posibilities:
 *     -> %d = days
 *     -> %h = hours
 *     -> %m = minutes
 *     -> %s = seconds
 */
$c->setFormat('%d dní, %h hodin, %m minut a %s sekund!');
$c->setDay(19);
$c->setMonth(7);
$c->setYear(2013);
$c->setHour(14);     // optional
$c->setMinute(50);     // optional
$c->setSecond(0);     // optional
print $c->getTimeRemaining(0);
?>