The Calendar Class
<?php
/*
* This Calendar Application was designed by:
*
* Kyle Ferreira
* http://www.SterlingSavvy.com
*
* Credits for following the template of:
*
* David Walsh
* http://davidwalsh.name/php-calendar
*
* You are free and welcome to use and manipulate this code as you wish.
* Please keep a reference to those who helped shape it (ie: the sources above)
*/
/*
* This is a Calendar Application Class
*
* Because this is a calendar application I've included a reference of all the Date()
* format text to call so you can customize your own look and feel <img src='http://www.yiiframework.com/forum/public/style_emoticons/default/smile.gif' class='bbc_emoticon' alt=':)' />
*
* a = 'am' or 'pm'
* A = 'AM' or 'PM'
* B = Swatch Internet time
* d = day of the month, 2 digits with leading zeros; i.e. '01' to '31'
* D = day of the week, textual, 3 letters; i.e. 'Fri'
* F = month, textual, long; i.e. 'January'
* g = hour, 12-hour format without leading zeros; i.e. '1' to '12'
* G = hour, 24-hour format without leading zeros; i.e. '0' to '23'
* h = hour, 12-hour format; i.e. '01' to '12'
* H = hour, 24-hour format; i.e. '00' to '23'
* i = minutes; i.e. '00' to '59'
* I = '1' if Daylight Savings Time, '0' otherwise. --> Note this is Capital i --> I
* j = day of the month without leading zeros; i.e. '1' to '31'
* l = day of the week, textual, long; i.e. 'Friday' --> Note this is Lowercase L --> l
* L = boolean for whether it is a leap year; i.e. '0' or '1'
* m = month; i.e. '01' to '12'
* M = month, textual, 3 letters; i.e. 'Jan'
* n = month without leading zeros; i.e. '1' to '12'
* r = RFC 822 formatted date; i.e. 'Thu, 21 Dec 2000 16:01:07 +0200' (added in PHP 4.0.4)
* s = seconds; i.e. '00' to '59'
* S = English ordinal suffix, textual, 2 characters; i.e. 'th', 'nd'
* t = number of days in the given month; i.e. '28' to '31'
* T = Timezone setting of this machine; i.e. 'MDT'
* U = seconds since the epoch
* w = day of the week, numeric, i.e. '0' (Sunday) to '6' (Saturday)
* Y = year, 4 digits; i.e. '1999'
* y = year, 2 digits; i.e. '99'
* z = day of the year; i.e. '0' to '365'
* Z = timezone offset in seconds (i.e. '-43200' to '43200').
* The offset for timezones west of UTC is always negative, and for those east of UTC is always positive.
*/
class Calendar
{
/*
* Variables for the class
*
* Title: refers to the month that should be placed in the heading of the view
* Calendar: holds the completed calendar
* Month: holds month
* Year: holds year value
* Style: refers to which css style to apply to the calendar (default is: calendar classes)
* Select Month: Used in the control menu to select which month to view
* Select Year: Used in the control menu to select which year to view
* Next Month: Used to select the next month in the control menu
* Previous Month: Used to select the previous month in the control menu
* Year Next Month: Stores the year information for the next month control
* Year Previous Month: Stores the year information for the previous month control
* Next Month Url: Sets the data for the link
* Previous Month Url: Sets the data for the link
* Store Next Link: Sets the link for the view
* Store Previous Link: Sets the link for the view
* Display Controls: Shows all the control options in the menu
* Start Form: holds the <form> tag to start the form as well as table information
* Close Form: holds the </form> tag to close the form as well as table information
*/
public $title;
public $calendar;
public $month;
public $year;
public $style;
public $selectMonth;
public $selectYear;
public $nextMonth;
public $previousMonth;
public $yearNextMonth;
public $yearPreviousMonth;
public $nextMonthUrl;
public $previousMonthUrl;
public $storeNextLink;
public $storePreviousLink;
public $displayControls;
public $startForm;
public $closeForm;
/*
* Constructor
*
* By Default set the month year to null so the applications will grab the
* current month and year in the event the none is specified
*/
function __construct($month = NULL, $year = NULL, $style = "calendar")
{
$this->month = $month;
$this->year = $year;
$this->style = $style;
$this->init();
}
/*
* Initializing function that runs upon class instantiation
*
* Sets the title of the application
* Then draws the calendar but does not print it
* Printing has to be be called via printCalendar
*/
public function init()
{
/*
* Call set title function
* Call draw calendar function
* Default gets the current month year for the title.
* Overriding month and year will alter this for both
* functions.
*/
$this->setTitle();
$this->setControlMenu();
$this->drawCalendar();
}
/*
* Set the title
* If there is another function that passed the date, either by calendar manipulation
* (like moving to the next month or previous year etc.) or if it was manually overrided
* by the user / developer - it'll set the proper header title accordingly.
*/
public function setTitle()
{
if(($this->month == NULL) || ($this->year == NULL))
{
$this->title = date("F Y");
}
else
{
$this->title = date('F Y',mktime(0,0,0,$this->month,1,$this->year));
}
}
/*
* Print out the control menu
*/
public function printControlMenu()
{
return $this->displayControls;
}
/*
* Print out starting tag of form
*/
public function printStartForm()
{
return $this->startForm;
}
/*
* Print out closing tag of form
*/
public function printCloseForm()
{
return $this->closeForm;
}
/*
* Builds the control menu
*/
public function setControlMenu()
{
/*
* If the application didn't provide $month / $year data
* Set the default values to the current month and year
* We only set this once here and it'll be used and implied
* for the drawCalendar function. Since this function is called
* first through the init() function
*/
if(($this->month == NULL) || ($this->year == NULL))
{
// Month in numbers with the leading 0
$this->month = date("m");
$this->year = date("Y");
}
/* select month control */
$this->selectMonth = '<select class="'. $this->style .'-control-select" name="month" id="month">';
for($x = 1; $x <= 12; $x++)
{
$this->selectMonth.= '<option value="'.$x.'"'.
($x != $this->month ? '' : ' selected="selected"').'>'.date('F',mktime(0,0,0,$x,1,$this->year)).'</option>';
}
$this->selectMonth.= '</select>';
/* select year control */
// Alter this year_range number to change how many years difference are selectable.
$year_range = 7;
$this->selectYear = '<select class="'. $this->style .'-control-select" name="year" id="year">';
for($x = ($this->year-floor($year_range/2)); $x <= ($this->year+floor($year_range/2)); $x++)
{
$this->selectYear.= '<option value="'.$x.'"'.($x != $this->year ? '' : ' selected="selected"').'>'.$x.'</option>';
}
$this->selectYear.= '</select>';
/* "next month" control and "previous month" control */
/* For plain old PHP
$this->nextMonth = '<a href="?month='.($this->month != 12 ? $this->month + 1 : 1).
'&year='.($this->month != 12 ? $this->year : $this->year + 1).'" class="control">Next Month >></a>';
$this->previousMonth = '<a href="?month='.($this->month != 1 ? $this->month - 1 : 12).
'&year='.($this->month != 1 ? $this->year : $this->year - 1).'" class="control"><< Previous Month</a>'; */
// For Yii Framework
$this->nextMonth = ($this->month != 12 ? $this->month + 1 : 1);
$this->yearNextMonth = ($this->month != 12 ? $this->year : $this->year + 1);
$this->previousMonth = ($this->month != 1 ? $this->month - 1 : 12);
$this->yearPreviousMonth = ($this->month != 1 ? $this->year : $this->year - 1);
/* Bring all the controls together in a menu */
$this->startForm = '<table cellpadding="0" cellspacing="0" class="'. $this->style .'-control"><tr><td><form method="post">';
$this->displayControls = $this->selectMonth.$this->selectYear.
' <input type="submit" name="submit" value="Go" />';
$this->closeForm = '</form></td></tr></table>';
}
/*
* Print out the Calendar to the screen
*/
public function printCalendar()
{
return $this->calendar;
}
/*
* Draw the Calendar
*/
public function drawCalendar()
{
/* We need to take the month value and turn it into one without a leading 0 */
if((substr($this->month, 0, 1)) == 0)
{
// if value is between 01 - 09, drop the 0
$tempMonth = substr($this->month, 1);
$this->month = $tempMonth;
}
/* draw table */
$this->calendar = '<table cellpadding="0" cellspacing="0" class="'. $this->style .'">';
/* table headings */
$headings = array('Sunday','Monday','Tuesday','Wednesday','Thursday','Friday','Saturday');
$this->calendar.= '<tr class="'. $this->style .'-row"><td class="'. $this->style .'-day-head">'
.implode('</td><td class="'. $this->style .'-day-head">',$headings).'</td></tr>';
/* days and weeks vars now ... */
$running_day = date('w',mktime(0,0,0,$this->month,1,$this->year));
$days_in_month = date('t',mktime(0,0,0,$this->month,1,$this->year));
$days_in_this_week = 1;
$day_counter = 0;
$dates_array = array();
/* row for week one */
$this->calendar.= '<tr class="'. $style .'-row">';
/* print "blank" days until the first of the current week */
for($x = 0; $x < $running_day; $x++):
$this->calendar.= '<td class="'. $this->style .'-day-np"> </td>';
$days_in_this_week++;
endfor;
/* keep going with days.... */
for($list_day = 1; $list_day <= $days_in_month; $list_day++):
if($list_day == date("j",mktime(0,0,0,$this->month)))
{
$this->calendar.= '<td class="'. $this->style .'-current-day">';
}
else
{
if(($running_day == "0") || ($running_day == "6"))
{
$this->calendar.= '<td class="'. $this->style .'-weekend-day">';
}
else
{
$this->calendar.= '<td class="'. $this->style .'-day">';
}
}
/* add in the day number */
$this->calendar.= '<div class="'. $this->style .'-day-number">'.$list_day.'</div>';
/** QUERY THE DATABASE FOR AN ENTRY FOR THIS DAY !! IF MATCHES FOUND, PRINT THEM !! **/
$this->calendar.= '<div class="'. $this->style .'-text"><a href="">Event 1</a></div><br/>';
$this->calendar.= '<div class="'. $this->style .'-text"><a href="">Event 2</a></div>';
$this->calendar.= str_repeat('<p> </p>',2);
$this->calendar.= '</td>';
if($running_day == 6):
$this->calendar.= '</tr>';
if(($day_counter+1) != $days_in_month):
$this->calendar.= '<tr class="'. $this->style .'-row">';
endif;
$running_day = -1;
$days_in_this_week = 0;
endif;
$days_in_this_week++; $running_day++; $day_counter++;
endfor;
/* finish the rest of the days in the week */
if($days_in_this_week < <img src='http://www.yiiframework.com/forum/public/style_emoticons/default/cool.gif' class='bbc_emoticon' alt='8)' /> :
for($x = 1; $x <= (8 - $days_in_this_week); $x++):
$this->calendar.= '<td class="'. $this->style .'-day-np"> </td>';
endfor;
endif;
/* final row */
$this->calendar.= '</tr>';
/* end the table */
$this->calendar.= '</table>';
}
}
?>
