PHP实例————万年历_PHP教程

<?php

	//修改字符编码
	header("content-type:text/html;charset=utf-8");

	//外部样式链接
	echo "<link rel='stylesheet' type='text/css' href='calendar.css'/>";

	//获取当前年
	$year=$_GET['Y']?$_GET['Y']:date('Y');

	//获取当前月
	$month=$_GET['m']?$_GET['m']:date('m');

	//获取当月有多少天
	$days=date('t',strtotime("{$year}-{$month}-1"));

	//当前是周几
	$week=date('w',strtotime("{$year}-{$month}-1"));

	//内容居中显示
	echo "<center>";

	//打印表头
	echo "<h1>{$year}年{$month}月</h1>";

	//打印日期表格
	echo "<table>";

	//打印星期
		echo "<tr>";
			echo "<th>周日</th>";
			echo "<th>周一</th>";
			echo "<th>周二</th>";
			echo "<th>周三</th>";
			echo "<th>周四</th>";
			echo "<th>周五</th>";
			echo "<th>周六</th>";
		echo "</tr>";

	//打印几号
	for($i=1-$week;$i<=$days;){
		echo "<tr>";
		for($j=0;$j<7;$j++){
			if($i>$days||$i<1){
				echo "<td>&#160;</td>";
			}else{
				echo "<td>$i</td>";
			}
			$i++;
		}
		echo "</tr>";
	}
	echo "</table>";

	//上一月和下一月算法
	if($month==1){
		$prevyear=$year-1;
		$prevmonth=12;
	}else{
		$prevyear=$year;
		$prevmonth=$month-1;
	}
	if($month==12){
		$nextyear=$year+1;
		$nextmonth=1;
	}else{
		$nextyear=$year;
		$nextmonth=$month+1;
	}

	//上一月和下一月的超链接
	echo "<h2>上一月&下一月</h2>";

	echo "</center>";
?>

table{
	width:500px;
	height:300px;
	border:red dashed 1px;
	background:#ff00ff;
}
tr{
	text-align:center;
}
td{
	border:gray dotted 1px;
}
h1{
	font-style:italic;
	font-size:50px;
	font-family:'宋体';
}
h2 a{
	font-style:normal;
	font-size:40px;
	font-family:'黑体';
	color:purple;
}
/*组合选择器*/
tr,td,th{
	font-size:20px;
	background:gray;
}