一直喜欢php下的日历实现代码，测试效果不错

比较不错的一款php日历代码

<?php 
/** 
* 日历 
* 
* Copyright(c) 2007 by 陈毅鑫(深空). All rights reserved 
* To contact the author write to {@link mailto:shenkong@php.net} 
* @author 陈毅鑫(深空) 
*/ 
if (function_exists('date_default_timezone_set')) { 
date_default_timezone_set('Asia/Chongqing'); 
} 
$date = isset($_GET['date']) ? $_GET['date'] : date('Y-m-d'); 
$date = getdate(strtotime($date)); 
$end = getdate(mktime(0, 0, 0, $date['mon'] + 1, 1, $date['year']) - 1); 
$start = getdate(mktime(0, 0, 0, $date['mon'], 1, $date['year'])); 
$pre = date('Y-m-d', $start[0] - 1); 
$next = date('Y-m-d', $end[0] + 86400); 
$html = '<table border="1">'; 
$html .= '<tr>'; 
$html .= '<td><a href="' . $PHP_SELF . '?date=' . $pre . '">-</a></td>'; 
$html .= '<td colspan="5">' . $date['year'] . ';' . $date['month'] . '</td>'; 
$html .= '<td><a href="' . $PHP_SELF . '?date=' . $next . '">+</a></td>'; 
$html .= '</tr>'; 
$arr_tpl = array(0 => '', 1 => '', 2 => '', 3 => '', 4 => '', 5 => '', 6 => ''); 
$date_arr = array(); 
$j = 0; 
for ($i = 0; $i < $end['mday']; $i++) { 
if (!isset($date_arr[$j])) { 
$date_arr[$j] = $arr_tpl; 
} 
$date_arr[$j][($i+$start['wday'])%7] = $i+1; 
if ($date_arr[$j][6]) { 
$j++; 
} 
} 
foreach ($date_arr as $value) { 
$html .= '<tr>'; 
foreach ($value as $v) { 
if ($v) { 
if ($v == $date['mday']) { 
$html .= '<td><b>' . $v . '</b></td>'; 
} else { 
$html .= '<td>' . $v . '</td>'; 
} 
} else { 
$html .= '<td> </td>'; 
} 
} 
$html .= '</tr>'; 
} 
$html .= '</table>'; 
echo $html; 
?>

php日历代码2

<?php 
/** 
* 日历 
*/ 
if (function_exists('date_default_timezone_set')) { 
date_default_timezone_set('Asia/Chongqing'); 
} 
$date = isset($_GET['date']) ? $_GET['date'] : date('Y-m-d'); 
$date = getdate(strtotime($date)); 
$end = getdate(mktime(0, 0, 0, $date['mon'] + 1, 1, $date['year']) - 1); 
$start = getdate(mktime(0, 0, 0, $date['mon'], 1, $date['year'])); 
$pre = date('Y-m-d', $start[0] - 1); 
$next = date('Y-m-d', $end[0] + 86400); 
$html = '<table width="200" border="1" cellspacing="0" bordercolor="#999999" 
align="center" style="line-height:150%; font-family:Verdana,宋体; font-size: 12px;">'; 
$html .= '<tr>'; 
$html .= '<td><a href="' . $PHP_SELF . '?date=' . $pre . '">-</a></td>'; 
$html .= '<td colspan="5">' . $date['year'] . ';' . $date['month'] . '</td>'; 
$html .= '<td><a href="' . $PHP_SELF . '?date=' . $next . '">+</a></td>'; 
$html .= '</tr>'; 
$arr_tpl = array(0 => '', 1 => '', 2 => '', 3 => '', 4 => '', 5 => '', 6 => ''); 
$date_arr = array(); 
$j = 0; 
for ($i = 0; $i < $end['mday']; $i++) { 
if (!isset($date_arr[$j])) { 
$date_arr[$j] = $arr_tpl; 
} 
$date_arr[$j][($i+$start['wday'])%7] = $i+1; 
if ($date_arr[$j][6]) { 
$j++; 
} 
} 
foreach ($date_arr as $value) { 
$html .= '<tr>'; 
foreach ($value as $v) { 
if ($v) { 
if ($v == $date['mday']) { 
$html .= '<td><b>' . $v . '</b></td>'; 
} else { 
$html .= '<td>' . $v . '</td>'; 
} 
} else { 
$html .= '<td> </td>'; 
} 
} 
$html .= '</tr>'; 
} 
$html .= '</table>'; 
echo $html; 
?> 

下面这个也不错，提示有错误，思路清晰

<?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 <<<VKN 
        <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> 
VKN; 
    $nowtime = mktime(0,0,0,$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 <<<VKN 
          <tr> 
    <td colspan="7"></td> 
  </tr> 
</table> 
VKN; 
} 
?> 
<!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>