| <?php
Class Calendar
{
Private $year;
Private $month;
Private $weeks = Array (' Day ', ' one ', ' two ', ' three ', ' four ', ' five ', ' six ');
function __construct ($options = Array ()) {
$this->year = Date (' Y ');
$this->month = Date (' m ');
$vars = Get_class_vars (Get_class ($this));
foreach ($options as $key => $value) {
if (Array_key_exists ($key, $vars)) {
$this-> $key = $value;
}
}
}
function display ()
{
echo ' <table class= calendar ' > ';
$this->showchangedate ();
$this->showweeks ();
$this->showdays ($this->year, $this->month);
Echo ' </table> ';
}
Private Function Showweeks ()
{
Echo ' <tr> ';
foreach ($this->weeks as $title)
{
Echo ' <th> '. $title. ' </th> ';
}
Echo ' </tr> ';
}
Private Function Showdays ($year, $month)
{
$firstDay = mktime (0, 0, 0, $month, 1, $year);
$starDay = Date (' W ', $firstDay);
$days = date (' t ', $firstDay); Echo ' <tr> ';
for ($i =0; $i < $starDay; $i + +) {
Echo ' <td> </td> ';
}
for ($j =1; $j <= $days; $j + +) {
$i + +;
if ($j = = Date (' d ')) {
Echo ' <td class= ' Today > '. $j. ' </td> ';
} else {
Echo ' <td> '. $j. ' </td> ';
}
if ($i% 7 = 0) {
Echo ' </tr><tr> ';
}
}
Echo ' </tr> ';
}
Private Function Showchangedate ()
{
$url = basename ($_server[' php_self '));
Echo ' <tr> ';
Echo ' <td><a href= '. $this->preyearurl ($this->year, $this->month). " > '. ' << '. ' </a></td> ';
Echo ' <td><a href= '. $this->premonthurl ($this->year, $this->month). " > '. ' < '. ' </a></td> ';
Echo ' <td colspan= 3 ' ><form> ';
Echo ' <select name= ' year ' onchange= ' window.location= '. $url. Year= ' +this.options[selectedindex].value+ ' &month= '. $this->month. ' " > ';
For ($ye =1970 $ye <=2038; $ye + +) {
$selected = ($ye = = $this->year)? ' Selected ': ';
Echo ' <option '. $selected. ' value= '. $ye. ' " > '. $ye. ' </option> ';
}
Echo ' </select> ';
Echo ' <select name= ' month ' onchange= ' window.location= '. $url. ' Year= '. $this->year. ' &month= ' +this.options[selectedindex].value+ ' ">";
For ($mo =1 $mo <=12; $mo + +) {
$selected = ($mo = = $this->month)? ' Selected ': ';
Echo ' <option '. $selected. ' value= '. $mo. ' > ' $mo. ' </option> ';
}
Echo ' </select> ';
Echo ' </form></td> ';
Echo ' <td><a href= '. $this->nextmonthurl ($this->year, $this->month). " > '. ' > '. ' </a></td> ';
Echo ' <td><a href= '. $this->nextyearurl ($this->year, $this->month). " > '. ' >> '. ' </a></td> ';
Echo ' </tr> ';
}
Private Function Preyearurl ($year, $month)
{
$year = ($this->year <= 1970)? 1970: $year-1;
Return ' year= '. $year. ' &month= '. $month;
}
Private Function Nextyearurl ($year, $month)
{
$year = ($year >= 2038)? 2038: $year + 1;
Return ' year= '. $year. ' &month= '. $month;
}
Private Function Premonthurl ($year, $month)
{
if ($month = = 1) {
$month = 12;
$year = ($year <= 1970)? 1970: $year-1;
} else {
$month--;
}
Return ' year= '. $year. ' &month= '. $month;
}
Private Function Nextmonthurl ($year, $month)
{
if ($month = = 12) {
$month = 1;
$year = ($year >= 2038)? 2038: $year + 1;
}else{
$month + +;
}
Return ' year= '. $year. ' &month= '. $month;
}
}
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