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authorFriendika <info@friendika.com>2011-02-22 20:08:15 -0800
committerFriendika <info@friendika.com>2011-02-22 20:08:15 -0800
commita5b80e5d564f6c239510dbee10daf3ff4c314f2e (patch)
tree0e105de39f740c2ee2f20369d0b14205fb85e5ae /include
parentf57f9852b198ec15ea7e9dbd20ebcf97a09112a9 (diff)
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add some calendaring functions
Diffstat (limited to 'include')
-rw-r--r--include/datetime.php111
1 files changed, 111 insertions, 0 deletions
diff --git a/include/datetime.php b/include/datetime.php
index b0279492b..724eec933 100644
--- a/include/datetime.php
+++ b/include/datetime.php
@@ -196,3 +196,114 @@ function age($dob,$owner_tz = '',$viewer_tz = '') {
$year_diff--;
return $year_diff;
}
+
+
+
+// Get days in month
+// get_dim($year, $month);
+// returns number of days.
+// $month[1] = 'January';
+// to match human usage.
+
+if(! function_exists('get_dim')) {
+function get_dim($y,$m) {
+
+ $dim = array( 0,
+ 31, 28, 31, 30, 31, 30,
+ 31, 31, 30, 31, 30, 31);
+
+ if($m != 2)
+ return $dim[$m];
+ if(((($y % 4) == 0) && (($y % 100) != 0)) || (($y % 400) == 0))
+ return 29;
+ return $dim[2];
+}}
+
+
+// Returns the first day in month for a given month, year
+// get_first_dim($year,$month)
+// returns 0 = Sunday through 6 = Saturday
+// Months start at 1.
+
+if(! function_exists('get_first_dim')) {
+function get_first_dim($y,$m) {
+ $d = sprintf('%04d-%02d-01 00:00', intval($y), intval($m));
+ return datetime_convert('UTC','UTC',$d,'w');
+}}
+
+// output a calendar for the given month, year.
+// if $links are provided (array), e.g. $links[12] => 'http://mylink' ,
+// date 12 will be linked appropriately. Today's date is also noted by
+// altering td class.
+// Months count from 1.
+
+
+// TODO: provide (prev,next) links, define class variations for different size calendars
+
+
+if(! function_exists('cal')) {
+function cal($y = 0,$m = 0, $links = false) {
+
+
+ // month table - start at 1 to match human usage.
+
+ $mtab = array(' ',
+ 'January','February','March',
+ 'April','May','June',
+ 'July','August','September',
+ 'October','November','December'
+ );
+
+ $thisyear = datetime_convert('UTC',date_default_timezone_get(),'now','Y');
+ $thismonth = datetime_convert('UTC',date_default_timezone_get(),'now','m');
+ if(! $y)
+ $y = $thisyear;
+ if(! $m)
+ $m = intval($thismonth);
+
+ $dn = array('Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday');
+ $f = get_first_dim($y,$m);
+ $l = get_dim($y,$m);
+ $d = 1;
+ $dow = 0;
+ $started = false;
+
+ if(($y == $thisyear) && ($m == $thismonth))
+ $tddate = intval(datetime_convert('UTC',date_default_timezone_get(),'now','j'));
+
+ $str_month = day_translate($mtab[$m]);
+ $o = '<table class="calendar">';
+ $o .= "<caption>$str_month $y</caption><tr>";
+ for($a = 0; $a < 7; $a ++)
+ $o .= '<th>' . substr(day_translate($dn[$a]),0,3) . '</th>';
+ $o .= '</tr><tr>';
+
+ while($d <= $l) {
+ if(($dow == $f) && (! $started))
+ $started = true;
+ $today = (((isset($tddate)) && ($tddate == $d)) ? "class=\"today\" " : '');
+ $o .= "<td $today>";
+ $day = str_replace(' ','&nbsp;',sprintf('%2.2d', $d));
+ if($started) {
+ if(is_array($links) && isset($links[$d]))
+ $o .= "<a href=\"{$links[$d]}\">$day</a>";
+ else
+ $o .= $day;
+ $d ++;
+ }
+ else
+ $o .= '&nbsp;';
+ $o .= '</td>';
+ $dow ++;
+ if(($dow == 7) && ($d <= $l)) {
+ $dow = 0;
+ $o .= '</tr><tr>';
+ }
+ }
+ if($dow)
+ for($a = $dow; $a < 7; $a ++)
+ $o .= '<td>&nbsp;</td>';
+ $o .= '</tr></table>'."\r\n";
+
+ return $o;
+}}