<?php
if(!defined('ABSPATH')) {
exit;
}
/**
* WP_Event_Manager_Date_Time
*/
class WP_Event_Manager_Date_Time {
const DATABASE_DATE_TIME_FORMAT = 'Y-m-d H:i:s';
const DBTIMEFORMAT = 'H:i:s';
/**
* Get datepicker format function will return all the date formats for datepicker.
*
* @param null
* @return format of datepicker
* @since 3.0
**/
public static function get_datepicker_format() {
$selected_format = get_option('event_manager_datepicker_format',0);
$formats = self::get_default_date_formats();
if($selected_format && isset($formats['datepicker_date_formats'][$selected_format]))
return $formats['datepicker_date_formats'][$selected_format];
else
return $formats['datepicker_date_formats'][0];
}
/**
* Function get_default_date_formats will return all the date formats.
* This function has both type of format jquery-ui-datepicker as well as for php date format
*
* @return array
* @since 3.0
**/
public static function get_default_date_formats(){
$date_formats['datepicker_date_formats'] = apply_filters('wp_event_manager_datepicker_date_formats',
array(
'yy-mm-dd',
'm-d-yy',
'mm-dd-yy',
'd-m-yy',
'dd-mm-yy',
'm/d/yy',
'mm/dd/yy',
'd/m/yy',
'dd/mm/yy',
'yy.mm.dd',
'mm.dd.yy',
'dd.mm.yy'
)
);
$date_formats['view_date_formats'] = apply_filters('wp_event_manager_view_date_formats',
array(
'Y-m-d',
'n-j-Y',
'm-d-Y',
'j-n-Y',
'd-m-Y',
'n/j/Y',
'm/d/Y',
'j/n/Y',
'd/m/Y',
'Y.m.d',
'm.d.Y',
'd.m.Y',
));
return $date_formats;
}
/**
* This function will parse the date to dbformatted date.
* Convert date and time value into DB formatted format and save eg. 1970-01-01 00:00:00
* php date format parsing has error so we need to parse via our custom parsing method
* Ref. https://stackoverflow.com/questions/6668223/php-date-parse-from-format-alternative-in-php-5-2
*
* @since 3.0
*/
public static function date_parse_from_format($format, $date) {
// reverse engineer date formats
$keys = array(
// Year with 4 Digits
'Y' => array('year', '\d{4}'),
// Year with 2 Digits
'y' => array('year', '\d{2}'),
// Month with leading 0
'm' => array('month', '\d{2}'),
// Month without the leading 0
'n' => array('month', '\d{1,2}'),
// Month ABBR 3 letters
'M' => array('month', '[A-Z][a-z]{2}'),
// Month Name
'F' => array('month', '[A-Z][a-z]{2,8}'),
// Day with leading 0
'd' => array('day', '\d{2}'),
// Day without leading 0
'j' => array('day', '\d{1,2}'),
// Day ABBR 3 Letters
'D' => array('day', '[A-Z][a-z]{2}'),
// Day Name
'l' => array('day', '[A-Z][a-z]{5,8}'),
// Hour 12h formatted, with leading 0
'h' => array('hour', '\d{2}'),
// Hour 24h formatted, with leading 0
'H' => array('hour', '\d{2}'),
// Hour 12h formatted, without leading 0
'g' => array('hour', '\d{1,2}'),
// Hour 24h formatted, without leading 0
'G' => array('hour', '\d{1,2}'),
// Minutes with leading 0
'i' => array('minute', '\d{2}'),
// Seconds with leading 0
's' => array('second', '\d{2}'),
);
// Convert format string to regex
$regex = '';
$chars = str_split($format);
foreach ($chars AS $n => $char) {
$lastChar = isset($chars[$n-1]) ? $chars[$n-1] : '';
$skipCurrent = '\\' == $lastChar;
if(!$skipCurrent && isset($keys[$char])) {
$regex .= '(?P<'.$keys[$char][0].'>'.$keys[$char][1].')';
} else if('\\' == $char) {
$regex .= $char;
} else {
$regex .= preg_quote($char);
}
}
$dt = array();
// Now try to match it
if(preg_match('#^'.$regex.'$#', $date, $dt)){
foreach ($dt AS $k => $v){
if(is_int($k)){
unset($dt[$k]);
}
}
if(!checkdate($dt['month'], $dt['day'], $dt['year'])){
return false;
}
} else {
return false;
}
$dt['month'] = str_pad($dt['month'], 2, '0', STR_PAD_LEFT);
$dt['day'] = str_pad($dt['day'], 2, '0', STR_PAD_LEFT);
$formatted = '{year}-{month}-{day}' . (isset($dt['hour'], $dt['minute'] ,$dt['second']) ? ' {hour}:{minute}:{second}' : '');
foreach ($dt as $key => $value) {
$formatted = str_replace('{' . $key . '}', $value, $formatted);
}
return $formatted;
}
/**
* This function will return php formatted date format from datepicker formatted date.
* For eg. in date picker date format is yy-mm-dd where this format in php will be Y-m-d
* So, We need one central function will allow to convert datepicker format in to php formatted format.
*
* @since 3.0
**/
public static function get_view_date_format_from_datepicker_date_format($datepicker_format = 'yy-mm-dd'){
$all_formats = self::get_default_date_formats();
$indexof_view_date_format = array_search($datepicker_format, $all_formats['datepicker_date_formats']);
return $all_formats['view_date_formats'][$indexof_view_date_format];
}
/**
* Get timepicker format function will return all the date formats for timepicker.
*
* @since 3.0
* @param null
* @return string format
**/
public static function get_timepicker_format() {
$selected_format = get_option('event_manager_timepicker_format',12);
$formats = array('h:i A','H:i');
if($selected_format && $selected_format == 24 )
return $formats[1];
else
return $formats[0];
}
/**
* Returns the time only.
*
* @since 3.0
* @param string $time time in 24 hour or 12 hour.
* @return string it will return time in DB formatted 24 hours time
*/
public static function get_db_formatted_time($time) {
$time = is_numeric($time) ? $time : strtotime($time);
return date(self::DBTIMEFORMAT, $time);
}
/**
* Returns the date time DB formatted.
*
* @since 3.1.10
* @param string $date and $time
* @return string it will return time in DB formatted date and time
*/
public static function get_db_formatted_date_time($date = '', $time = '00:00:00') {
if(empty($date))
return;
// Get date and time setting defined in admin panel Event listing -> Settings -> Date & Time formatting
$datepicker_date_format = self::get_datepicker_format();
// Covert datepicker format into php date() function date format
$php_date_format = self::get_view_date_format_from_datepicker_date_format($datepicker_date_format);
$time = self::get_db_formatted_time($time);
// Convert date and time value into DB formatted format and save eg. 1970-01-01 00:00:00
$db_date_time = self::date_parse_from_format($php_date_format . ' H:i:s' , $date .' '.$time);
return $db_date_time;
}
/**
* Get timepicker format function will return all the date formats for timepicker.
*
* @since 3.0
**/
public static function get_timepicker_step() {
$selected_step = get_option('event_manager_timepicker_step',30);
return isset($selected_step) && $selected_step >= 1 && $selected_step <= 60 ? $selected_step : 30;
}
/**
* Get wp event manager view date format.
* This format is set by user from event listing -> settings -> date and time
*
* @return string
* @since 3.0
**/
public static function get_event_manager_view_date_format(){
return get_option('event_manager_view_date_format','M d ,Y');
}
/**
* Get Wp event manager date admin setting where you can get array of dummy date.
* The key of each value will be a php date format which is generated from the get_default_date_formats()
* It will just make array for dropdown for showing dummy date and key as php formatted so we can save it
* Currentrly it is used at event listing -> settings -> date and time - datepicker format
* In wp event manager settings we don't have way to generate html so we have generated array for select option
*
* @since 3.0
* @return array
*/
public static function get_event_manager_date_admin_settings(){
$dummy_date = strtotime('January 15 ' . date('Y'));
$default_foramts = self::get_default_date_formats();
$setting_values = array();
foreach($default_foramts['view_date_formats'] as $key => $value){
$setting_values[$key] = date($value, $dummy_date);
}
return $setting_values;
}
/**
* Get event manager timezone setting defined in event listing -> settings.
*
* @since 3.0
* @return string $selected_timezone
*/
public static function get_event_manager_timezone_setting(){
$selected_timezone = get_option('event_manager_timezone_setting','site_timezone');
return $selected_timezone;
}
/**
* Manage current site timezon.
* @return string
*/
public static function get_current_site_timezone(){
$current_offset = get_option('gmt_offset');
$tzstring = get_option('timezone_string');
$check_zone_info = true;
// Remove old Etc mappings. Fallback to gmt_offset.
if(false !== strpos($tzstring,'Etc/GMT'))
$tzstring = '';
if(empty($tzstring)) { // Create a UTC+- zone if no timezone string exists
$check_zone_info = false;
if(0 == $current_offset)
$tzstring = 'UTC+0';
elseif($current_offset < 0)
$tzstring = 'UTC' . $current_offset;
else
$tzstring = 'UTC+' . $current_offset;
}
return $tzstring;
}
/**
*
* @param string $tzstring
*/
public static function wp_event_manager_timezone_choice($tzstring = null){
if(empty($tzstring))
$tzstring = self::get_current_site_timezone();
return apply_filters('wp_event_manager_timezone_choice', wp_timezone_choice($tzstring, get_user_locale()));
}
/**
* convert_event_timezone_into_abbr function
* @param string $event_timezone
*/
public static function convert_event_timezone_into_abbr($event_timezone){
// Get string of event timezone if it is UTC offset
$tzstring = self::generate_timezone_string_from_utc_offset($event_timezone);
$date_time = new DateTime('NOW');
$date_time->setTimeZone(new DateTimeZone($tzstring));
return $date_time->format('T');
}
/**
* current_timestamp_from_event_timezone will return the current timestamp according to the
* timezone selected in event or passed in argument
* @since 3.0
* @param $event_timezone
* @return timestamp
**/
public static function current_timestamp_from_event_timezone($event_timezone){
if(empty($event_timezone))
return;
// Get string of event timezone if it is UTC offset
$tzstring = self::generate_timezone_string_from_utc_offset($event_timezone);
$date_time = new DateTime("now");
$date_time->setTimezone(new DateTimeZone($tzstring));
return strtotime($date_time->format('Y-m-d H:i:s'));
}
/**
* Tests to see if the timezone string is a UTC offset, ie "UTC+2".
*
* @param string $timezone
* @return bool
*/
public static function is_utc_offset($timezone) {
$timezone = trim($timezone);
return (0 === strpos($timezone, 'UTC') && strlen($timezone) > 3);
}
/**
* Helper function to retrieve the timezone string for a given UTC offset
* This is a close copy of WooCommerce's wc_timezone_string() method
*
* @param string $offset UTC offset
* @return string
*/
public static function generate_timezone_string_from_utc_offset($offset) {
if(!self::is_utc_offset($offset)) {
return $offset;
}
// Ensure we have the minutes on the offset
if(!strpos($offset, ':')) {
$offset .= ':00';
}
$offset = str_replace('UTC', '', $offset);
list($hours, $minutes) = explode(':', $offset);
$seconds = $hours * 60 * 60 + $minutes * 60;
// Attempt to guess the timezone string from the UTC offset
$timezone = timezone_name_from_abbr('', $seconds, 0);
if(false === $timezone) {
$is_dst = date('I');
foreach (timezone_abbreviations_list() as $abbr) {
foreach ($abbr as $city) {
if($city['dst'] == $is_dst && $city['offset'] == $seconds && !empty($city['timezone_id'])) {
return $city['timezone_id'];
}
}
}
// Fallback to UTC
return 'UTC';
}
return $timezone;
}
/**
* Localizes a date or timestamp using WordPress timezone and returns it in the specified format.
*
* @param string $format The format the date shouuld be formatted to.
* @param string|int $date The date UNIX timestamp or `strtotime` parseable string.
* @param string $timezone An optional timezone string identifying the timezone the date shoudl be localized
* to; defaults to the WordPress installation timezone (if available) or to the system
* timezone.
*
* @return string|bool The parsed date in the specified format and localized to the system or specified
* timezone, or `false` if the specified date is not a valid date string or timestamp
* or the specified timezone is not a valid timezone string.
*/
public static function localize_date($date = null, $format = null, $timezone = null) {
if(empty($timezone))
$timezone = self::get_current_site_timezone();
$timezone = self::generate_timezone_string_from_utc_offset($timezone);
try {
$date = new DateTime(strtotime($date));
$date->setTimezone(new DateTimeZone($timezone));
} catch (Exception $e) {
return false;
}
return $date->format($format);
}
/**
* Converts PHP/Wordpress default datetime format selectors to Moment.js/Date.js usable formats
* @param string $format PHP/Wordpress datetime format selector
* @return string Converted Datetime selectors to use with Moment.js/Date.js
* @since 3.1.26
*/
public static function wpem_convert_php_to_moment_format($format) {
$replacements = [
'd' => 'DD',
'D' => 'ddd',
'j' => 'D',
'l' => 'dddd',
'N' => 'E',
'S' => 'o',
'w' => 'e',
'z' => 'DDD',
'W' => 'W',
'F' => 'MMMM',
'm' => 'MM',
'M' => 'MMM',
'n' => 'M',
't' => '', // no equivalent
'L' => '', // no equivalent
'o' => 'YYYY',
'Y' => 'YYYY',
'y' => 'YY',
'a' => 'a',
'A' => 'A',
'B' => '', // no equivalent
'g' => 'h',
'G' => 'H',
'h' => 'hh',
'H' => 'HH',
'i' => 'mm',
's' => 'ss',
'u' => 'SSS',
'e' => 'zz', // deprecated since version 1.6.0 of moment.js
'I' => '', // no equivalent
'O' => '', // no equivalent
'P' => '', // no equivalent
'T' => '', // no equivalent
'Z' => '', // no equivalent
'c' => '', // no equivalent
'r' => '', // no equivalent
'U' => 'X',
];
$momentFormat = strtr($format, $replacements);
return $momentFormat;
}
}
new WP_Event_Manager_Date_Time();