下面是ci的日历类，可以参考一下。
ci =& get_instance();
if ( ! in_array('calendar_lang.php', $this->ci->lang->is_loaded, true))
{
$this->ci->lang->load('calendar');
}
$this->local_time = time();
if ( count( $config) > 0)
{
$this->initialize( $config);
}
log_message('debug', calendar class initialized);
}
// --------------------------------------------------------------------
/* *
* initialize the user preferences
*
* accepts an associative array as input, containing display preferences
*
* @access public
* @param array config preferences
* @return void
*/
function initialize( $config = array())
{
foreach ( $config as $key => $val)
{
if ( isset( $this-> $key))
{
$this-> $key = $val;
}
}
}
// --------------------------------------------------------------------
/* *
* generate the calendar
*
* @access public
* @param integer the year
* @param integer the month
* @param array the data to be shown in the calendar cells
* @return string
*/
function generate( $year = '', $month = '', $data = array())
{
// set and validate the supplied month/year
if ( $year == '')
$year = date(y, $this->local_time);
if ( $month == '')
$month = date(m, $this->local_time);
if ( strlen( $year) == 1)
$year = '200'. $year;
if ( strlen( $year) == 2)
$year = '20'. $year;
if ( strlen( $month) == 1)
$month = '0'. $month;
$adjusted_date = $this->adjust_date( $month, $year);
$month = $adjusted_date['month'];
$year = $adjusted_date['year'];
// determine the total days in the month
$total_days = $this->get_total_days( $month, $year);
// set the starting day of the week
$start_days = array('sunday' => 0, 'monday' => 1, 'tuesday' => 2, 'wednesday' => 3, 'thursday' => 4, 'friday' => 5, 'saturday' => 6);
$start_day = ( ! isset( $start_days[ $this->start_day])) ? 0 : $start_days[ $this->start_day];
// set the starting day number
$local_date = mktime(12, 0, 0, $month, 1, $year);
$date = getdate( $local_date);
$day = $start_day + 1 - $date[wday];
while ( $day > 1)
{
$day -= 7;
}
// set the current month/year/day
// we use this to determine the today date
$cur_year = date(y, $this->local_time);
$cur_month = date(m, $this->local_time);
$cur_day = date(j, $this->local_time);
$is_current_month = ( $cur_year == $year and $cur_month == $month) ? true : false;
// generate the template data array
$this->parse_template();
// begin building the calendar output
$out = $this->temp['table_open'];
$out .= \n;
$out .= \n;
$out .= $this->temp['heading_row_start'];
$out .= \n;
// previous month link
if ( $this->show_next_prev == true)
{
// add a trailing slash to the url if needed
$this->next_prev_url = preg_replace(/(.+?)\/*$/, \\1/, $this->next_prev_url);
$adjusted_date = $this->adjust_date( $month - 1, $year);
$out .= str_replace('{previous_url}', $this->next_prev_url. $adjusted_date['year'].'/'. $adjusted_date['month'], $this->temp['heading_previous_cell']);
$out .= \n;
}
// heading containing the month/year
$colspan = ( $this->show_next_prev == true) ? 5 : 7;
$this->temp['heading_title_cell'] = str_replace('{colspan}', $colspan, $this->temp['heading_title_cell']);
$this->temp['heading_title_cell'] = str_replace('{heading}', $this->get_month_name( $month). . $year, $this->temp['heading_title_cell']);
$out .= $this->temp['heading_title_cell'];
$out .= \n;
// next month link
if ( $this->show_next_prev == true)
{
$adjusted_date = $this->adjust_date( $month + 1, $year);
$out .= str_replace('{next_url}', $this->next_prev_url. $adjusted_date['year'].'/'. $adjusted_date['month'], $this->temp['heading_next_cell']);
}
$out .= \n;
$out .= $this->temp['heading_row_end'];
$out .= \n;
// write the cells containing the days of the week
$out .= \n;
$out .= $this->temp['week_row_start'];
$out .= \n;
$day_names = $this->get_day_names();
for ( $i = 0; $i {
$out .= str_replace('{week_day}', $day_names[( $start_day + $i) %7], $this->temp['week_day_cell']);
}
$out .= \n;
$out .= $this->temp['week_row_end'];
$out .= \n;
// build the main body of the calendar
while ( $day {
$out .= \n;
$out .= $this->temp['cal_row_start'];
$out .= \n;
for ( $i = 0; $i {
$out .= ( $is_current_month == true and $day == $cur_day) ? $this->temp['cal_cell_start_today'] : $this->temp['cal_cell_start'];
if ( $day > 0 and $day {
if ( isset( $data[ $day]))
{
// cells with content
$temp = ( $is_current_month == true and $day == $cur_day) ? $this->temp['cal_cell_content_today'] : $this->temp['cal_cell_content'];
$out .= str_replace('{day}', $day, str_replace('{content}', $data[ $day], $temp));
}
else
{
// cells with no content
$temp = ( $is_current_month == true and $day == $cur_day) ? $this->temp['cal_cell_no_content_today'] : $this->temp['cal_cell_no_content'];
$out .= str_replace('{day}', $day, $temp);
}
}
else
{
// blank cells
$out .= $this->temp['cal_cell_blank'];
}
$out .= ( $is_current_month == true and $day == $cur_day) ? $this->temp['cal_cell_end_today'] : $this->temp['cal_cell_end'];
$day++;
}
$out .= \n;
$out .= $this->temp['cal_row_end'];
$out .= \n;
}
$out .= \n;
$out .= $this->temp['table_close'];
return $out;
}
// --------------------------------------------------------------------
/* *
* get month name
*
* generates a textual month name based on the numeric
* month provided.
*
* @access public
* @param integer the month
* @return string
*/
function get_month_name( $month)
{
if ( $this->month_type == 'short')
{
$month_names = array('01' => 'cal_jan', '02' => 'cal_feb', '03' => 'cal_mar', '04' => 'cal_apr', '05' => 'cal_may', '06' => 'cal_jun', '07' => 'cal_jul', '08' => 'cal_aug', '09' => 'cal_sep', '10' => 'cal_oct', '11' => 'cal_nov', '12' => 'cal_dec');
}
else
{
$month_names = array('01' => 'cal_january', '02' => 'cal_february', '03' => 'cal_march', '04' => 'cal_april', '05' => 'cal_mayl', '06' => 'cal_june', '07' => 'cal_july', '08' => 'cal_august', '09' => 'cal_september', '10' => 'cal_october', '11' => 'cal_november', '12' => 'cal_december');
}
$month = $month_names[ $month];
if ( $this->ci->lang->line( $month) === false)
{
return ucfirst( str_replace('cal_', '', $month));
}
return $this->ci->lang->line( $month);
}
// --------------------------------------------------------------------
/* *
* get day names
*
* returns an array of day names (sunday, monday, etc.) based
* on the type. options: long, short, abrev
*
* @access public
* @param string
* @return array
*/
function get_day_names( $day_type = '')
{
if ( $day_type != '')
$this->day_type = $day_type;
if ( $this->day_type == 'long')
{
$day_names = array('sunday', 'monday', 'tuesday', 'wednesday', 'thursday', 'friday', 'saturday');
}
elseif ( $this->day_type == 'short')
{
$day_names = array('sun', 'mon', 'tue', 'wed', 'thu', 'fri', 'sat');
}
else
{
$day_names = array('su', 'mo', 'tu', 'we', 'th', 'fr', 'sa');
}
$days = array();
foreach ( $day_names as $val)
{
$days[] = ( $this->ci->lang->line('cal_'. $val) === false) ? ucfirst( $val) : $this->ci->lang->line('cal_'. $val);
}
return $days;
}
// --------------------------------------------------------------------
/* *
* adjust date
*
* this function makes sure that we have a valid month/year.
* for example, if you submit 13 as the month, the year will
* increment and the month will become january.
*
* @access public
* @param integer the month
* @param integer the year
* @return array
*/
function adjust_date( $month, $year)
{
$date = array();
$date['month'] = $month;
$date['year'] = $year;
while ( $date['month'] > 12)
{
$date['month'] -= 12;
$date['year']++;
}
while ( $date['month'] {
$date['month'] += 12;
$date['year']--;
}
if ( strlen( $date['month']) == 1)
{
$date['month'] = '0'. $date['month'];
}
return $date;
}
// --------------------------------------------------------------------
/* *
* total days in a given month
*
* @access public
* @param integer the month
* @param integer the year
* @return integer
*/
function get_total_days( $month, $year)
{
$days_in_month = array(31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);
if ( $month 12)
{
return 0;
}
// is the year a leap year?
if ( $month == 2)
{
if ( $year % 400 == 0 or ( $year % 4 == 0 and $year % 100 != 0))
{
return 29;
}
}
return $days_in_month[ $month - 1];
}
// --------------------------------------------------------------------
/* *
* set default template data
*
* this is used in the event that the user has not created their own template
*
* @access public
* @return array
*/
function default_template()
{
return array (
'table_open' => '
',
'heading_row_start' => '',
'heading_previous_cell' => '<<',
'heading_title_cell' => '{heading}',
'heading_next_cell' => '>>',
'heading_row_end' => '
',
'week_row_start' => '',
'week_day_cell' => '{week_day} ',
'week_row_end' => '
',
'cal_row_start' => '',
'cal_cell_start' => '',
'cal_cell_start_today' => ' ',
'cal_cell_content' => '{day}',
'cal_cell_content_today' => '{day}',
'cal_cell_no_content' => '{day}',
'cal_cell_no_content_today' => '{day}',
'cal_cell_blank' => ' ',
'cal_cell_end' => ' ',
'cal_cell_end_today' => '',
'cal_row_end' => '
',
'table_close' => '
'
);
}
// --------------------------------------------------------------------
/* *
* parse template
*
* harvests the data within the template {pseudo-variables}
* used to display the calendar
*
* @access public
* @return void
*/
function parse_template()
{
$this->temp = $this->default_template();
if ( $this->template == '')
{
return;
}
$today = array('cal_cell_start_today', 'cal_cell_content_today', 'cal_cell_no_content_today', 'cal_cell_end_today');
foreach ( array('table_open', 'table_close', 'heading_row_start', 'heading_previous_cell', 'heading_title_cell', 'heading_next_cell', 'heading_row_end', 'week_row_start', 'week_day_cell', 'week_row_end', 'cal_row_start', 'cal_cell_start', 'cal_cell_content', 'cal_cell_no_content', 'cal_cell_blank', 'cal_cell_end', 'cal_row_end', 'cal_cell_start_today', 'cal_cell_content_today', 'cal_cell_no_content_today', 'cal_cell_end_today') as $val)
{
if ( preg_match(/\{. $val.\}(.*?)\{\/. $val.\}/si, $this->template, $match))
{
$this->temp[ $val] = $match['1'];
}
else
{
if ( in_array( $val, $today, true))
{
$this->temp[ $val] = $this->temp[ str_replace('_today', '', $val)];
}
}
}
}
}
// end ci_calendar class
/* end of file calendar.php */
/* location: ./system/libraries/calendar.php */