Calendars
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<?php
########################################
# CLASSE CALENDAR
#
# Written by : Christian Lescuyer
# Company : Go�lette
# URL : www.goelette.net
# Requires : PHP 4.0
#
# History
# V1.0 18/02/2001 Creation
# V1.1 18/11/2001 English comments
#
# Don't forget to update get_id() function with the version number
#
########################################
class calendar {
# Variables
var $date;
var $callback;
var $day_name;
var $date_format;
# Constructor
# Set defaults
function calendar()
{
# Use strtotime() format.
$this->date = date("j M Y");
# Display format
$this->date_format="j/m";
$this->day_name = array ("Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun");
}
########################################
# Fonctions set
function set_date($text_date) {
$this->date = $text_date;
}
function set_date_format($f) {
$this->date_format = $f;
}
function set_daynames($names) {
$this->day_name = $names;
}
function set_callback($cb) {
$this->callback = $cb;
}
########################################
# Fonctions get
function get_id() {
return "CLASS calendar v1.1";
}
function get_date() {
return($this->date);
}
function get_date_format() {
return($this->date_format);
}
function get_daynames() {
return($this->day_name);
}
function get_callback() {
return($this->callback);
}
########################################
# Main function
function output_calendar()
{
# Relay variable for callback()
# Apparently, it's not possible to dereference $this->callback()
$cb = $this->callback;
# Preliminary calculations
$t = getdate(strtotime($this->date));
$today = $t["mday"];
$year = $t["year"];
$month = $t["mon"];
# Get first day of the month (monday = 0)
$first_wday = ((int) date("w", mktime(0, 0, 0, $month, 1, $year))+6)%7;
# Last day of the month
$last_mday = (int) date("d", mktime(0, 0, 0, $month+1, 0, $year));
# Anchor
echo "<a name="calendar">";
# Table
echo "<TABLE BORDER="0" CELLPADDING="0" CELLSPACING="2">n";
# Table head
echo "<THEAD><TR>";
for ($j=0 ; $j<=6 ; $j++) {
echo "<TH CLASS="calendar_title">n";
echo $this->day_name[$j];
echo "</TH>n";
}
echo "</TR></THEAD><TBODY>n";
# Day row
# A month is displayed on 5 rows
# except for a 28 days month starting on Monday
if (($last_mday==28) and ($first_wday==0))
$jmax = 27;
else
$jmax = 34;
for ($j=0; $j<=$jmax; $j++) {
# Start new row on Monday
if ($j%7==0)
echo "<TR>n";
# Title colour for current day
if ($j == $today+$first_wday-1)
echo "<TD CLASS="calendar_title">n";
else
echo "<TD CLASS="calendar_day">n";
if (($j<$first_wday) or ($j>=$last_mday + $first_wday)) {
# Empty boxes
echo " ";
} else {
if (isset($cb))
echo $cb(mktime(0, 0, 0, $month, $j - $first_wday + 1, $year));
echo date($this->date_format, mktime(0, 0, 0, $month, $j - $first_wday + 1, $year));
if (isset($cb))
echo "</A>n";
}
echo "</TD>n";
# End of row on Sunday
if ($j%7==6)
echo "</TR>n";
}
echo "</TBODY></TABLE>n";
}
} # end class calendar
########################################
########################################
# How to use the class
#
# Nota : Style sheet
# calendar_day for days
# calendar_title for titles
# calendar_table for the table
#
########################################
echo "<HEAD>
<STYLE type="text/css">
TH.calendar_title {font-family: verdana, arial; font-weight: bold; color: #003333; background-color: #009999; text-align: center; height: 25; width: 40}
TD.calendar_title {font-family: "Times new roman"; font-weight: bold; color: #000033; background-color: #009999; text-align: center; height: 25; width: 40}
TD.calendar_day {font-family: "Times new roman"; color: #000033; background-color: #0099CC; text-align: center; height: 25; width: 40}
</STYLE>
</HEAD>";
# Callback function if you need a link on dates
# The callback function is called for each day
# Adjust link depending on timestamp ($stamp)
# Returns opening <A> tag
function datelink($stamp)
{
$link = "<A HREF="" . date("Ymd", $stamp) . ".htm">";
return($link);
}
# Display calendar with your own parameters
$cal = new calendar;
# Calendar will display current month, or choose date with set_date
$cal->set_date("25 dec 2001");
$cal->set_callback("datelink");
# Change day language or names
$cal->set_daynames(array ("Lun", "Mar", "Mer", "Jeu", "Ven", "Sam", "Dim"));
$cal->output_calendar();
echo "<H1>Example for " . $cal->get_id() . "</H1>";
echo "<P>Computed for " . $cal->get_date() . "<br>";
echo " with links provided by " . $cal->get_callback() . "()<br>";
echo "And these day titles : ";
print_r( $cal->get_daynames());
?>
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