zm6931
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注册 2006-3-22
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PHP实现的简单日历
最近工作找了一些日历的插件，简单修改下，拿来贴一帖。
这个由php实现的日历，在使用的时候有很多限制，如果每次查看上个月或者下个月就来一次刷新，所以该代码仅供娱乐
<?php
function calendar() {
if($_GET['ym']) {
$year=substr($_GET['ym'],0,4);
$month=substr($_GET['ym'],4,(strlen($_GET['ym'])-4));
if($month>12) {
$year+=floor($month/12);
$month=$month%12;
}
if($year>2030) {
$year=2030;
}
if($year<1980) {
$year=1980;
}
}
$year=isset($year)?$year:date('Y');
$month=isset($month)?$month:date('n');
if($year==date('Y') && $month==date('n')) {
$today=date('j');
}
if($month-1==0) {
$prevmonth=($year-1)."12";
} else {
$prevmonth=$year.($month-1);
}
if($month+1==13) {
$nextmonth=($year+1)."1";
} else {
$nextmonth=$year.($month+1);
}
$prevyear=($year-1).$month;
$nextyear=($year+1).$month;
echo <<<END
<table width="200" border="0" cellpadding="2" cellspacing="2">
<tr>
<td class="weekday"><a href="?ym=$prevyear"><<</a></td>
<td class="normalday"><a href="?ym=$prevmonth"><</a></td>
<td colspan="3" class="normalday">$year - $month</td>
<td class="normalday"><a href="?ym=$nextmonth">></a></td>
<td class="weekday"><a href="?ym=$nextyear">>></a></td>
</tr>
<tr>
<td width="27" class="weekday">日</td>
<td width="27" class="normalday">一</td>
<td width="27" class="normalday">二</td>
<td width="27" class="normalday">三</td>
<td width="27" class="normalday">四</td>
<td width="27" class="normalday">五</td>
<td width="27" class="weekday">六</td>
</tr>
END;
$nowtime=mktime(0,0,0,$month,1,$year);//当月１号转为秒
$daysofmonth=date('t',$nowtime);//当月天数
$weekofbeginday=date('w',$nowtime);//当月第一天是星期几
$weekofendday=date('w',mktime(0,0,0,$month+1,0,$year));//当月最后一天是星期几
$daysofprevmonth=date('t',mktime(0,0,0,$month,0,$year));//上个月天数
$count=1;//计数
//列出上月后几天
for($i=1;$i<=$weekofbeginday;$i++) {
echo "<td class='othermonth'>".($daysofprevmonth-$weekofbeginday+$i)."</td>";
$count++;
}
//当月全部
for($i=1;$i<=$daysofmonth;$i++) {
$css=($count%7==0 || $count%7==1)?"weekday":"normalday";
if($i==$today) {
$css .= "today";
}
echo "<td class='".$css."'>".$i."</td>";
if($count%7==0) {
echo "</tr><tr>";
}
$count++;
}
//下月前几天
for($i=1;$i<=6-$weekofendday;$i++) {
echo "<td class='othermonth'>".$i."</td>";
}
echo <<<END
<tr>
<td colspan="7"></td>
</tr>
</table>
END;
}
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>calendar</title>
<style type="text/css">
<!--
.weekday {
font-size: 9pt;
color: #FF0000;
text-align: center;
}
.normalday {
font-size: 9pt;
color: #000000;
text-align: center;
}
.weekdaytoday {
font-size: 9pt;
color: #FF0000;
text-align: center;
background-color: #FFD9D9;
font-weight: bold;
}
.normaldaytoday {
font-size: 9pt;
color: #000000;
text-align: center;
background-color: #DDDDDD;
font-weight: bold;
}
.othermonth {
font-size: 9pt;
font-style: italic;
color: #999999;
text-align: center;
}
-->
</style>
</head>
<body>
<?php calendar();?>
</body>
</html>
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