Date & Time
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<?php
/**
* Project: Smarty Enabled Calendar
*
* File: Calendar.php
*
* Based on 'kghoker at yahoo.com's tiny calendar (see comments below).
*
* This code renders a cool-looking, small calendar 150 px wide with the
* following features:
*
* - Clean UI
* - Move forward and backward one month
* - Move forward and backward one year
* - Easily return to today's view
* - Utilises Smarty
*
* There are two files contained in this snippett; the php code-behind page and
* the Smarty template page. Use of this code presumes you have PHP and Smarty
* working on your system.
*
* To install, copy the code into their two respective files. I name the code-
* behind page 'calendar.php' and the template page 'calendar.tpl'. Make sure
* you include the smarty.class.php or use some other way to instantiate the
* Smarty object. Have fun!
*
* Bryce
* http://www.brycemickler.com/
*
* ---
* original comments
* ---
*
* mail: kghoker at yahoo.com 9/17/2001
* Much like "A Tiny Calendar", just less code.
* Give it a month/day/year, and it will generate the calendar and highlight the day.
* Colors are customizeable. If no date arguments given, assumes today.
*
*/
/**
* Smarty Configuration stuff
*
*/
require_once('smarty.class.php');
$smarty = new Smarty();
define('SCRIPT_NAME',basename(__FILE__));
/**
* Grab form arguments from the URL if there are any
*/
if(isset($_GET['m'])){
if(is_numeric($_GET['m']) && (strlen($_GET['m']) <= 2) && ($_GET['m'] < 13)){
$newMonth = strip_tags(trim($_GET['m']));
}
}
if(isset($_GET['y'])){
if(is_numeric($_GET['y']) && (strlen($_GET['m']) <= 4)){
$newYear = strip_tags(trim($_GET['y']));
}
}
$weekdays = array('Sun','Mon','Tue','Wed','Thu','Fri','Sat');
$monthAbrevs = array(1=>'Jan.',2=>'Feb.',3=>'Mar.',4=>'Apr.',5=>'May',6=>'June',
7=>'July',8=>'Aug.',9=>'Sept',10=>'Oct.',11=>'Nov.',12=>'Dec.');
/**
* Calculate the calendar data
*/
$monthNum = (isset($newMonth)) ? $newMonth : date("n",time());
$fullYear = (isset($newYear)) ? $newYear : date("Y",time()); //used in href links
$abrevYear = substr($fullYear,2,2);
$today = date("j", time());
$dayOne = date("w",mktime(1,1,1,$monthNum,1,$fullYear));
$numDays = date("t",mktime(1,1,1,$monthNum,1,$fullYear));
$monthName = $monthAbrevs[$monthNum] . ' '' . $abrevYear;
/**
* It is very difficult to use smarty to solve complex problems such as computing
* where days fall in a calendar view. On the other hand, Smarty really does a
* good job of displaying arrays so we are going to create an array that holds
* both blank days and normal days. Smarty will loop through this array and
* display the values in the calendar.
*
* Blank days are days that belong to the previous month, but are still in the
* calendar week of the first day of the current month. For example; Sept. 1,
* 2006 is on a Friday. There are 5 blank days that belong to the previous month
* (Sunday through Thursday). We need to pad the array with 5 blank days.
*/
/**
* How many blank days?
*/
$blank_days = array();
for($i = 0; $i < $dayOne; $i++){
$blank_days[$i] = '';
}
$num_blank_days = count($blank_days);
/**
* Create the numdays_array and pad it with the blank days.
*/
$count = 1;
for($i = 1;$i <= $num_blank_days; $i++){
$numdays_array[$count] = '';
$count++;
}
/**
* Now add the rest of the days of the month to the array. The value will be the
* day of the month. Blank days have a value of ''.
*/
for($i = 1; $i <= $numDays; $i++){
$numdays_array[] = $i;
}
/**
* Create the URL strings to move back and forth in time.
*/
// Calculate the previous month & its' year
$prevMonthsNum = ($monthNum == 1) ? 12 : $monthNum - 1;
$prevMonthsYear = ($prevMonthsNum == 1) ? $fullYear - 1 : $fullYear;
$prevMonthString = SCRIPT_NAME . "?m=$prevMonthsNum&y=$prevMonthsYear";
// Calculate the next month & its' year
$nextMonthsNum = ($monthNum == 12) ? 1 : $monthNum + 1;
$nextMonthsYear = ($nextMonthsNum == 1) ? $fullYear + 1 : $fullYear;
$nextMonthString = SCRIPT_NAME . "?m=$nextMonthsNum&y=$nextMonthsYear";
// Go back one full year
$lastYear = $fullYear - 1;
$lastYearString = SCRIPT_NAME . "?m=$monthNum&y=$lastYear";
// Go ahead one full year
$nextYear = $fullYear + 1;
$nextYearString = SCRIPT_NAME . "?m=$monthNum&y=$nextYear";
/**
* send variables to Smarty
*/
$smarty->assign('MONTHNAME',$monthName);
$smarty->assign('TODAY',$today);
$smarty->assign('NUMDAYS_ARRAY',$numdays_array);
$smarty->assign('WEEKDAYS',$weekdays);
$smarty->assign('PREV_MONTH_LINK',$prevMonthString);
$smarty->assign('NEXT_MONTH_LINK',$nextMonthString);
$smarty->assign('LAST_YEAR_LINK',$lastYearString);
$smarty->assign('NEXT_YEAR_LINK',$nextYearString);
/**
* Display the page
*/
$smarty->display('calendar.tpl');
/**
* End of 'calendar.php'
*/
?>
<!-- Begin 'calendar.tpl' Smarty template file. Don't include this comment line //-->
{ * Smarty * }
<html>
<head>
{literal}
<style type="text/css">
a { text-decoration: none}
</style>
{/literal}
<title>Calendar</title>
</head>
<body><table border="0" cellpadding="0" cellspacing="0" width="150">
<tr>
<td align="center">
<a href="{$LAST_YEAR_LINK}"><<</a>
</td>
<td align="center">
<a href="{$PREV_MONTH_LINK}"><</a>
</td>
<td bgcolor="#ffffff" colspan="3" valign="middle" align="center">
<font color="#333399" face="arial" size="3">
<b>
{$MONTHNAME}
</b></font>
</td>
<td align="center">
<a href="{$NEXT_MONTH_LINK}">></a>
</td>
<td align="center">
<a href="{$NEXT_YEAR_LINK}">>></a>
</td>
</tr>
<tr>
{foreach from=$WEEKDAYS item=WEEKDAY}
<td bgcolor="#FFFFFF" valign="middle" align="center" width="15%">
<font color="#000000" face="arial" size="1"><b>{$WEEKDAY}</b></font>
</td>
{/foreach}
</tr>
<tr>
{foreach from=$NUMDAYS_ARRAY key=KEY item=CURR_DAY}
{if $CURR_DAY == ""}
<td bgcolor="#ffffff" width="15%">
<font color="#ffffff" face="arial" size="1"> </font>
</td>
{elseif $CURR_DAY == $TODAY}
<td bgcolor="#CC0000" valign="middle" align="center" width="15%">
<font color="#FFFFFF" face="arial" size="1">
{$CURR_DAY}
</font>
</td>
{else}
<td bgcolor="#FFFFFF" valign="middle" align="center" width="15%">
<font color="#000000" face="arial" size="1">
{$CURR_DAY}
</font>
</td>
{/if}
{if $KEY is div by 7}
</tr><tr>
{/if}
{/foreach}
</tr>
<tr>
<td colspan="7" align="left">
<font color="#000000" face="arial" size="1">
<a href="calendar.php">today</a>
</font>
</td>
</tr>
</table>
</body>
</html>
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