PHP Calendar Sign-in module

Create Table

CREATE TABLE ' Tb_signinfo ' (
' id ' int (ten) unsigned not NULL auto_increment COMMENT ' record each check-in details ',
' MemberID ' int (one) DEFAULT NULL COMMENT ' Association member table ID ',
' SignDate ' int (8) DEFAULT NULL COMMENT ' record check-in date, format: Year Month Day ',
' Credit ' int (255) The default NULL COMMENT ' record the value of the points that are given to each check-in ',
PRIMARY KEY (' id ')
) Engine=innodb auto_increment=17 DEFAULT Charset=utf8

<style type= "Text/css" >
#tc_calendar {width:100%;}
#tc_title {Height:33px;line-height:33px;text-align:right;overflow:hidden;}
#tc_title strong{font-weight:bold;font-size:14px;}
#tc_calendar {border-collapse:collapse;}
#tc_calendar Td{text-align:center;width:35px;height:20px;line-height:20px;background-color: #efefef; border-bottom:1px solid #fff; border-right:1px solid #fff;}
#tc_calendar. Even td{background-color: #e6e6e6;}
#tc_calendar TD. Current2{display:block;background-color: #f60; color: #fff;}
#tc_calendar. Current{background-color: #cf0!important;color: #000;}
#tc_calendar. Current2{background-color: #f60!important;color: #000;}
#tc_week td{color: #fff; Background-color: #373737;}
</style>
<?php
$mdays =date ("T"); Total days of the month
$datenow =date ("J"); Date of day
$monthnow =date ("n"); Month of the Month
$yearnow =date ("Y"); Year of the Year
Calculate the first day of the month is the days of the week
$wk 1st=date ("W", Mktime (0,0,0, $monthnow, 1, $yearnow));
$trnum =ceil (($mdays + $wk 1st)/7); Calculate the number of table rows
Here is the table string
$tabstr = "<table id=tc_calendar><tr id=tc_week><td> Day </td><td> a </td><td> Two </td><td> three </td><td> four </td><td> five </td><td> six </td></tr > ";
for ($i =0; $i < $trnum; $i + +) {
$tabstr. = "<tr class=" even ">";
for ($k =0; $k <7; $k + +) {//seven cells per line
$tabidx = $i *7+ $k; Get the cell itself ordinal
If the cell ordinal is less than the number of days of the first day of the month ($wk 1st) or greater (total number of months + $WK 1st)
Fill in the blanks only, and vice versa, write the date
($tabidx < $wk 1st or $tabidx > $mdays + $wk 1st-1)? $dayecho = "a": $dayecho = $tabidx-$wk 1st+1;
Assembled date
if ($monthnow <10) {$m = "0". $monthnow;} else{$m = $monthnow;};
if ($dayecho <10) {$d = "0". $dayecho;} else{$d = $dayecho;};
$ymd = $yearnow. $m. $d;
The date information after assembling is compared with the database. Database date format 20150611
I'm using the CI framework here.
$sql = "Select SignDate from Tb_signinfo where signdate= '". $ymd. "'";
$result = $this->db->query ($sql)->num_rows;
if ($result! = 0) {
$TODAYBG = "class=" Current2 "";
}
Else
{
$TODAYBG = "";
}
Highlighted here today's date with the above check-in display code is repeated, if you need two effects at the same time to implement, self-processing judgment statement can be
/*if ($dayecho = = $datenow) {
$TODAYBG = "class=" Current2 "";
}
Else
{
$TODAYBG = "";
}*/
$tabstr. = "<td". $todaybg. " > $dayecho </td> ";
}
$tabstr. = "</tr>";
}
$tabstr. = "</table>";
?>
<div id= "Tc_calendardiv" ><div id= "Tc_title" ><strong><?= $yearnow?> year <?= $monthnow?> Month </strong></div>
<?php echo $tabstr;? >
</div>

PHP Calendar Sign-in module