จะทำปฏิทินให้มันเช็ค วันที่ ในฐานข้อมูลค่ะ จะให้มันเช็นว่า ถ้า มีเหตุการณ์แล้วจะเปลี่ยนสี ช่องปฏิทิน อ่ะค่ะ ต้องเพิ่มโค๊ดตรงไหนบ้างค่ะ

<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<style type="text/css">
<!--
body { margin: 0px 0px; padding: 0px 0px}
a:link { color: #005CA2; text-decoration: none}
a:visited { color: #005CA2; text-decoration: none}
a:active { color: #0099FF; text-decoration: underline}
a:hover { color: #0099FF; text-decoration: underline}
-->
</style>
  
<?php
$a= date(j); // , 1 to 31 
$b = date(a); // am,
$c = date(A); // AM,
$d = date(B); // Swatch Internet time 000 -999
$e = date(d); // , 01 to 31
$f = date(D); // , sat 
$g = date(F); // , November 
$h = date(g); // , 1 through 12
$hh = date(G); // , 0 through 23
$i = date(h); // , 01 through 12 
$j = date(H); // , 00 through 23 
$k = date(i); // , 00 to 59 
$l = date(I); // 0, 1 if Daylight Savings Time, 0 otherwise. 
$m = date(l); // , Sunday through Saturday
$n = date(L); // 0, 1 if it is a leap year, 0 otherwise.
$o = date(m); // , 01 through 12
$p = date(M); // , Jan through Dec
$q = date(n); // , 1 through 12
$r = date(o); // Example: +0200 
$s = date(r); // Example: Thu, 21 Dec 2000 16:01:07 +0200
$t = date(s); // 00 through 59
$u = date(S); // st, nd, rd or th. Works well with j 
$v = date(t); // 28 through 31
$w = date(T); // time zoneseting Examples: EST, MDT ...
$x = date(u); // See also time()
$y = date(w); // 0 (for Sunday) through 6 (for Saturday)
$z = date(W); // Example: 42 (the 42nd week in the year)
$aa = date(y); // Examples: 99 or 03
$bb = date(Y); // Examples: 1999 or 2003
$cc = date(z); 
$dd = date(Z); 

if(!$mon){
	$mon = $o ;
}else{
	$mon = $mon ;
}
if(!$year){
	$year = $bb ;
}else{
	$year = $year;
}
$firstday = mktime(0,0,0,$mon,1,$bb);
$firstdays = date('w',$firstday); 
$lastdays = date('t',$firstday); 
$year_view = date('Y',$firstday)+543; 
$mon_view = date('m',$firstday); 
echo"
<script>
	function d_s( su , mnp){ 
		if(mnp == 'm'){
			document.dat_form.mon.value = su - 1 ;
		}else{
			document.dat_form.mon.value = su + 1 ;
		}
		document.dat_form.submit();
	}
</script>
<div>
<form name=dat_form action='$PHP_SELF' method=post>
<input type=hidden name=mon value=''>

<table align=center border=0 width=98%>
	<tr>
		<td colspan=2 align=left><a href=\"javascript:d_s($mon,'m')\"> << เดือนก่อนหน้า </a></td>
		<td colspan=3 align=center><font size=6><strong>$mon_view - $year_view </strong></font></td>
		<td colspan=2 align=right><a href=\"javascript:d_s($mon,'p')\"> เดือนถัดไป >> </a></td>
	</tr>
</form>
	<tr bgcolor=#e6dd4e height=25 align=center>
		<td width=14%><font color=#FF3366>อาทิตย์</font></td>
		<td width=14%>จันทร์</td>
		<td width=14%>อังคาร</td>
		<td width=14%>พุธ</td>
		<td width=14%>พฤหัสบดี</td>
		<td width=14%>ศุกร์</td>
		<td width=14%><font color=#666699>เสาร์</font></td>
	</tr>
	<tr align=right>";
//// 
for($i = 0; $i < 7 ; $i++){
if($firstdays == $i){
break;
}
else{
echo"<td height=77 background=images/whitetd.png>&nbsp;</td>"; // null day before $i
}
$week++; 
}

for($i=1; $i<=$lastdays ;$i++){
if($week % 7 == 0){
echo"</tr>
	 <tr>";
}
if($a == $i){ 
$bgcolor = ""; //background color for <td> in today
}else{
$bgcolor = ""; //background color for <td> not today
}

if($week%7==0){ 
	echo"<td height=77 background=images/pinktd.png $bgcolor><a href=\"empPageEvent.php?cy=$year_view&cm=$mon_view&cd=$i\">$i</a></td>";
}else if($week%7==6){ 
	echo"<td height=77 background=images/purpletd.png $bgcolor><a href=\"empPageEvent.php?cy=$year_view&cm=$mon_view&cd=$i\">$i</a></td>";
}else{ // 
	echo"<td height=77 background=images/greenlighttd.png $bgcolor><a href=\"empPageEvent.php?cy=$year_view&cm=$mon_view&cd=$i\">$i</a></td>";
}
$week++;
}

while($week%7!=0){
echo"<td height=77 background=images/whitetd.png>&nbsp;</td>";  // null day after $i
$week++;
}
echo"</tr>
</table>
";
?>