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<?php
class Date
{
const DATE_NOW = 'now';
const FORMAT_TIMESTAMP = 0;
const FORMAT_DAY_MONTH = 1;
const FORMAT_DAY_MONTH_YEAR = 2;
const FORMAT_DAY_MONTH_YEAR_HOUR_MINUTE = 3;
const FORMAT_RFC2822 = 4;
const FORMAT_ISO8601 = 5;
const FORMAT_DAY_MONTH_YEAR_LONG = 6;
const FORMAT_DAY_MONTH_YEAR_TEXT = 7;
const FORMAT_DAY_MONTH_YEAR_HOUR_MINUTE_TEXT = 8;
const FORMAT_RELATIVE = 9;
const FORMAT_ISO_DAY_MONTH_YEAR = 10;
const FORMAT_DIFF_NOW = 11;
private $date_time;
public function __construct($time = self::DATE_NOW, $referencial_timezone = Timezone::USER_TIMEZONE)
{
$date_timezone = Timezone::get_timezone($referencial_timezone);
if (preg_match('`^([0-9]+)$`iu', $time))
{
$this->date_time = new DateTime();
$this->date_time->setTimezone($date_timezone);
$this->date_time->setTimestamp($time);
}
else if (preg_match('`^-([0-9]+)$`iu', $time))
{
$this->date_time = new DateTime('@' . $time, $date_timezone);
}
else
{
$this->date_time = new DateTime($time, $date_timezone);
}
}
public function format($format = self::FORMAT_DAY_MONTH, $referencial_timezone = Timezone::USER_TIMEZONE)
{
$this->compute_server_user_difference($referencial_timezone);
if (is_string($format))
{
return $this->date_time->format($format);
}
switch ($format)
{
case self::FORMAT_DAY_MONTH:
return $this->date_time->format(LangLoader::get_message('date_format_day_month', 'date-common'));
break;
case self::FORMAT_DAY_MONTH_YEAR:
return $this->date_time->format(LangLoader::get_message('date_format_day_month_year', 'date-common'));
break;
case self::FORMAT_DAY_MONTH_YEAR_HOUR_MINUTE:
return $this->date_time->format(LangLoader::get_message('date_format_day_month_year_hour_minute', 'date-common'));
break;
case self::FORMAT_TIMESTAMP:
return $this->date_time->getTimestamp();
break;
case self::FORMAT_RFC2822:
return $this->date_time->format('r');
break;
case self::FORMAT_ISO8601:
return $this->date_time->format('c');
break;
case self::FORMAT_DAY_MONTH_YEAR_LONG:
return self::transform_date($this->date_time->format(LangLoader::get_message('date_format_day_month_year_long', 'date-common')));
break;
case self::FORMAT_DAY_MONTH_YEAR_TEXT:
return self::transform_date($this->date_time->format(LangLoader::get_message('date_format_day_month_year_text', 'date-common')));
break;
case self::FORMAT_DAY_MONTH_YEAR_HOUR_MINUTE_TEXT:
return self::transform_date($this->date_time->format(LangLoader::get_message('date_format_day_month_year_hour_minute_text', 'date-common')));
break;
case self::FORMAT_RELATIVE:
return self::get_date_relative($this->get_timestamp(), $referencial_timezone);
break;
case self::FORMAT_ISO_DAY_MONTH_YEAR:
return $this->date_time->format('Y-m-d');
break;
case self::FORMAT_DIFF_NOW:
$time = self::get_date_relative($this->get_timestamp(), $referencial_timezone);
if ($time !== LangLoader::get_message('instantly', 'date-common'))
$time = StringVars::replace_vars(LangLoader::get_message('ago', 'date-common'), array('time' => $time));
return $time;
break;
default:
return '';
}
}
public function get_date_relative($timestamp, $referencial_timezone)
{
$now = new Date(Date::DATE_NOW, $referencial_timezone);
if ($now->get_timestamp() > $timestamp)
$time_diff = $now->get_timestamp() - $timestamp;
else
$time_diff = $timestamp - $now->get_timestamp();
$secondes = $time_diff;
$minutes = round($time_diff/60);
$hours = round($time_diff/3600);
$days = round($time_diff/86400);
$weeks = round($time_diff/604800);
$months = round($time_diff/2419200);
$years = round($time_diff/29030400);
if ($secondes == 1)
return LangLoader::get_message('instantly', 'date-common');
elseif ($secondes < 60)
return $secondes . ' ' . LangLoader::get_message('seconds', 'date-common');
elseif ($minutes < 60)
return $minutes . ' ' . ($minutes > 1 ? LangLoader::get_message('minutes', 'date-common') : LangLoader::get_message('minute', 'date-common'));
elseif ($hours < 24)
return $hours . ' ' . ($hours > 1 ? LangLoader::get_message('hours', 'date-common') : LangLoader::get_message('hour', 'date-common'));
elseif ($days < 7)
return $days . ' ' . ($days > 1 ? LangLoader::get_message('days', 'date-common') : LangLoader::get_message('day', 'date-common'));
elseif ($weeks < 4)
return $weeks . ' ' . ($weeks > 1 ? LangLoader::get_message('weeks', 'date-common') : LangLoader::get_message('week', 'date-common'));
elseif ($months < 12)
return $months . ' ' . ($months > 1 ? LangLoader::get_message('months', 'date-common') : LangLoader::get_message('month', 'date-common'));
else
return $years . ' ' . ($years > 1 ? LangLoader::get_message('years', 'date-common') : LangLoader::get_message('year', 'date-common'));
}
public function get_timestamp()
{
return $this->date_time->getTimestamp();
}
public function get_date_time()
{
return $this->date_time;
}
public function get_year($timezone = Timezone::USER_TIMEZONE)
{
$this->compute_server_user_difference($timezone);
return $this->date_time->format('Y');
}
public function set_year($year, $referential_timezone = Timezone::USER_TIMEZONE)
{
$this->compute_server_user_difference($referential_timezone);
$this->date_time->setDate($year, $this->get_month(), $this->get_day());
}
public function get_month($timezone = Timezone::USER_TIMEZONE)
{
$this->compute_server_user_difference($timezone);
return $this->date_time->format('m');
}
public function set_month($month, $referential_timezone = Timezone::USER_TIMEZONE)
{
$this->compute_server_user_difference($referential_timezone);
$this->date_time->setDate($this->get_year(), $month, $this->get_day());
}
public function get_month_text($characters_number = '', $timezone = Timezone::USER_TIMEZONE)
{
$this->compute_server_user_difference($timezone);
return Texthelper::ucfirst(TextHelper::mb_substr(self::transform_date($this->date_time->format('F')), 0, $characters_number));
}
public function get_week_number($referential_timezone = Timezone::USER_TIMEZONE)
{
$this->compute_server_user_difference($referential_timezone);
return $this->date_time->format('W');
}
public function set_week_number($week_number)
{
$this->date_time->setISODate($this->get_year(), $week_number);
}
public function get_day($timezone = Timezone::USER_TIMEZONE)
{
$this->compute_server_user_difference($timezone);
return $this->date_time->format('j');
}
public function get_day_two_digits($timezone = Timezone::USER_TIMEZONE)
{
$this->compute_server_user_difference($timezone);
return $this->date_time->format('d');
}
public function set_day($day, $referential_timezone = Timezone::USER_TIMEZONE)
{
$this->compute_server_user_difference($referential_timezone);
$this->date_time->setDate($this->get_year(), $this->get_month(), $day);
}
public function get_day_text($characters_number = '', $timezone = Timezone::USER_TIMEZONE)
{
$this->compute_server_user_difference($timezone);
return Texthelper::ucfirst(TextHelper::substr(self::transform_date($this->date_time->format('l')), 0, $characters_number));
}
public function get_day_of_week($timezone = Timezone::USER_TIMEZONE)
{
$this->compute_server_user_difference($timezone);
return (int)$this->date_time->format('w');
}
public function get_day_of_year($timezone = Timezone::USER_TIMEZONE)
{
$this->compute_server_user_difference($timezone);
return (int)$this->date_time->format('z');
}
public function set_day_of_year($day_of_year)
{
$this->date_time->modify($this->get_year() . '-01-00 ' . $day_of_year. 'days');
}
public function get_hours($timezone = Timezone::USER_TIMEZONE)
{
$this->compute_server_user_difference($timezone);
return $this->date_time->format('H');
}
public function set_hours($hours, $referential_timezone = Timezone::USER_TIMEZONE)
{
$this->compute_server_user_difference($referential_timezone);
$this->date_time->setTime($hours, $this->get_minutes(), $this->get_seconds());
}
public function get_minutes()
{
return $this->date_time->format('i');
}
public function set_minutes($minutes, $referential_timezone = Timezone::USER_TIMEZONE)
{
$this->compute_server_user_difference($referential_timezone);
$this->date_time->setTime($this->get_hours(), $minutes, $this->get_seconds());
}
public function get_seconds()
{
return $this->date_time->format('s');
}
public function set_seconds($seconds, $referential_timezone = Timezone::USER_TIMEZONE)
{
$this->compute_server_user_difference($referential_timezone);
$this->date_time->setTime($this->get_hours(), $this->get_minutes(), $seconds);
}
public function to_date()
{
return $this->date_time->format('Y-m-d');
}
public function is_anterior_to(Date $date)
{
return $this->get_date_time() < $date->get_date_time();
}
public function is_posterior_to(Date $date)
{
return !$this->is_anterior_to($date);
}
public function equals(Date $date)
{
return $this->get_date_time() == $date->get_date_time();
}
public function add_days($number_days)
{
$this->date_time->modify('+'.$number_days.' days');
}
public function add_weeks($number_weeks)
{
$this->date_time->modify('+'.$number_weeks.' weeks');
}
public function is_date_year_bissextile()
{
return $this->date_time->format('L') == 1;
}
private static function check_date($month, $day, $year)
{
return checkdate($month, $day, $year);
}
public static function to_format($time, $format = self::FORMAT_DAY_MONTH, $referencial_timezone = Timezone::USER_TIMEZONE)
{
$date = new Date($time, $referencial_timezone);
return $date->format($format);
}
public static function set_default_timezone()
{
$default = @date_default_timezone_get();
@date_default_timezone_set($default);
}
public static function get_array_tpl_vars($date, $date_label)
{
if ($date == null || !$date instanceof Date || empty($date_label))
return array();
$date_label = TextHelper::strtoupper($date_label);
return array(
$date_label => $date->format(Date::FORMAT_DAY_MONTH_YEAR),
$date_label . '_TIMESTAMP' => $date->get_timestamp(),
$date_label . '_SHORT' => $date->format(Date::FORMAT_DAY_MONTH_YEAR),
$date_label . '_SHORT_TEXT' => $date->format(Date::FORMAT_DAY_MONTH_YEAR_TEXT),
$date_label . '_SHORT_MONTH_TEXT' => $date->format(Date::FORMAT_DAY_MONTH_YEAR_LONG),
$date_label . '_FULL' => $date->format(Date::FORMAT_DAY_MONTH_YEAR_HOUR_MINUTE),
$date_label . '_DAY' => $date->get_day(),
$date_label . '_DAY_TEXT' => $date->get_day_text(3),
$date_label . '_DAY_FULLTEXT' => $date->get_day_text(),
$date_label . '_WEEK' => $date->get_week_number(),
$date_label . '_MONTH' => $date->get_month(),
$date_label . '_MONTH_TEXT' => $date->get_month_text(3),
$date_label . '_MONTH_FULLTEXT' => $date->get_month_text(),
$date_label . '_YEAR' => $date->get_year(),
$date_label . '_DAY_MONTH' => $date->format(Date::FORMAT_DAY_MONTH),
$date_label . '_HOUR' => $date->get_hours(),
$date_label . '_MINUTE' => $date->get_minutes(),
$date_label . '_SECONDS' => $date->get_seconds(),
$date_label . '_ISO8601' => $date->format(Date::FORMAT_ISO8601),
$date_label . '_DIFF_NOW' => $date->format(Date::FORMAT_DIFF_NOW),
$date_label . '_RELATIVE' => $date->format(Date::FORMAT_RELATIVE)
);
}
private function compute_server_user_difference($referencial_timezone = Timezone::SERVER_TIMEZONE)
{
$this->date_time->setTimezone(Timezone::get_timezone($referencial_timezone));
}
private static function transform_date($date)
{
$date_lang = LangLoader::get('date-common');
$search = array(
'january', 'february', 'march', 'april', 'may', 'june', 'july', 'august', 'september', 'october', 'november', 'december',
'monday', 'tuesday', 'wednesday', 'thursday', 'friday', 'saturday', 'sunday'
);
$replace = array(
$date_lang['january'], $date_lang['february'], $date_lang['march'], $date_lang['april'], $date_lang['may'], $date_lang['june'],
$date_lang['july'], $date_lang['august'], $date_lang['september'], $date_lang['october'], $date_lang['november'], $date_lang['december'],
$date_lang['monday'], $date_lang['tuesday'], $date_lang['wednesday'], $date_lang['thursday'], $date_lang['friday'], $date_lang['saturday'], $date_lang['sunday'],
);
return str_replace($search, $replace, TextHelper::strtolower($date));
}
}
?>