Project – Coding Simple Calendar Using PHP Programming
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Calender</title>
<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" data-wp-preserve="%3Cstyle%20type%3D%22text%2Fcss%22%3E%0A%09%09.prev%7B%0A%09%09%09text-align%3A%20left%3B%0A%09%09%7D%0A%09%09.next%7B%0A%09%09%09text-align%3A%20right%3B%0A%09%09%7D%0A%09%09.day%2C%20.month%2C%20.weekday%7B%0A%09%09%09text-align%3A%20center%3B%0A%09%09%7D%0A%09%09.today%7B%0A%09%09%09background%3A%20yellow%3B%0A%09%09%7D%0A%09%09.blank%7B%0A%0A%09%09%7D%0A%09%3C%2Fstyle%3E" data-mce-resize="false" data-mce-placeholder="1" class="mce-object" width="20" height="20" alt="<style>" title="<style>" />
</head>
<body>
<?php
$month = isset($_GET['month'])? intval($_GET['month']):date('m');
$year = isset($_GET['year'])? intval($_GET['year']):date('Y');
$newCal = new Calender($month, $year);
echo $newCal->html();
?>
</body>
</html>
<?php
class Calender{
/* Date/Time*/
public $monthToUse;
protected $prepared = false;
protected $days = array();
public function __construct($month, $year){
/*building a date and time for the month that we display on page*/
$this->monthToUse = DateTime::createFromFormat('Y-m', sprintf("%04d-%02d", $year, $month));
$this->prepare();
}
protected function prepare(){
//we will build a array of info about each day
foreach (array('Su', 'Mo', 'Tu', 'We', 'Th', 'Fr', 'Sa') as $dow) {
$endOfRow = ($dow=='Sa');
$this->days[] = array('type'=>'dow', 'label'=> $dow, 'endOfRow'=> $endOfRow);
}
//next placeholder up to the first day of the week
for($i=0, $j=$this->monthToUse->format('w'); $i<$j; $i++){
$this->days[] = array('type'=>'blank');
}
//now one item for each day in the month.......
$today = date("Y-m-d");
$days = new DatePeriod($this->monthToUse, new DateInterval("P1D"), $this->monthToUse->format("t") - 1);
foreach ($days as $day) {
$isToday = ($day->format("Y-m-d")==$today);
$endOfRow = ($day->format('w')==6);
$this->days[] = array('type'=>'day', 'label'=>$day->format('j'), 'today'=> $isToday, 'endOfRow'=>$endOfRow);
}
if (!$endOfRow) {
for($i=0, $j = 6 - $day->format('w'); $i<$j; $i++){
$this->days[] = array('type'=>'blank');
}
}
}
public function html($opts = array()){
if (!isset($opts['id'])) {
$opts['id'] = 'calender';
}
if (!isset($opts['month_link'])) {
$opts['month_link'] = '<a href="'.htmlentities($_SERVER['PHP_SELF']).'?'.'month=%d&year=%d">%s</a>';
}
$classes = array();
foreach (array('prev', 'month', 'next', 'weekday', 'blank', 'day', 'today') as $class) {
if (isset($opts['class']) && isset($opts['class'][$class])) {
$classes[$class] = $opts['class'][$class];
}else{
$classes[$class]= $class;
}
}
//build prev month link........
$prevMonth = clone $this->monthToUse;
$prevMonth->modify("-1 month");
$prevMonthLink = sprintf($opts['month_link'], $prevMonth->format('m'), $prevMonth->format('Y'), "≪");
//build Next month link........
$nextMonth = clone $this->monthToUse;
$nextMonth->modify("+1 month");
$nextMonthLink = sprintf($opts['month_link'], $nextMonth->format('m'), $nextMonth->format('Y'), "≫");
//making calender structurre........
$html = '<table border="3" id="'.htmlentities($opts['id']).'" width="300px" height="300px">
<tr>
<td class="'.htmlentities($classes['prev']).'">'.$prevMonthLink.'</td>
<td class="'.htmlentities($classes['month']).'" colspan="5">'.$this->monthToUse->format('F Y'). '</td>
<td class="'.htmlentities($classes['next']).'">'.$nextMonthLink.'</td></tr>';
$html .='<tr>';
$lastDayIndex = count($this->days) - 1;
foreach ($this->days as $i => $day) {
switch ($day['type']) {
case 'dow':
// code...
$class = 'weekday';
$label = htmlentities($day['label']);
break;
case 'blank':
//code
$class = 'blank';
$label = " ";
break;
case 'day':
//code
$class = $day['today']?'today':'day';
$label = htmlentities($day['label']);
break;
}
$html .= '<td class="'.htmlentities($classes[$class]).'">'.$label.'</td>';
if (isset($day['endOfRow']) && $day['endOfRow']) {
$html .= "</tr>";
if ($i != $lastDayIndex) {
$html .='<tr>';
}
}
}
$html .= '</table>';
return $html;
}
public function text(){
$lineLength = strlen("Su Mo Tu We Th Fr Sa");
$header = $this->monthToUse->format('F Y');
$headerSpacing = floor($lineLength - strlen($header)/2);
$text = str_repeat(' ', $headerSpacing). $header."<br />";
foreach ($this->days as $i => $day) {
switch ($day['type']) {
case 'dow':
// code...
$text .=sprintf('%2s', $day['label']);
break;
case 'blank':
//code
$text .= ' ';
break;
case 'day':
//code
$text .=sprintf('%2d', $day['label']);
break;
}
$text .= (isset($day['endOfRow']) && $day['endOfRow']) ? "<br />" :" ";
}
if ($text[strlen($text-1)] != "<br />") {
$text .= "<br>";
}
return $text;
}
}
?>
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