以下代码只是简单实现日历的效果和逻辑思路，没有使用类封装，权当抛砖引玉，有兴趣的朋友可以封装起来，方便调用。
<?php /** * PHP利用时间函数输出日历 * Rain.zen $ intval@163.com */ /** * 获取关于日历的格式对应的天数 * @param $format 获取的格式[t:指定月份的天数; w:数字型的星期数(0-星期日,6-星期六)] * @param $year 年份，例：2009 * @param $month 月份，例：03 * @param $day 日期，例：08 * @return bool|string 返回值是根据格式$format的选择决定 */ function calenderNum($format, $year, $month, $day){ return date($format, mktime(0, 0, 0, $month, $day, $year)); } // 月份数组 $aryMonth = array('一', '二', '三', '四', '五', '六', '七', '八', '九', '十', '十一', '十二'); // 当前年月日 $thenTime = date('Y-m-d'); list($thenYear, $thenMonth, $thenDay) = explode('-', $thenTime); // 是否是星期日作为开头[1:是; 0:否] $isSunday = 0; // 日期:年份下拉控件 $year = isset($_POST['year']) ? $_POST['year'] : $thenYear; $yearLast = 8; // 年份的前后持续周期 $selectYear = '<select name="year" onchange="this.form.submit();">'; for($i = ($year + $yearLast), $n = ($year - $yearLast); $i >= $n; $i--){ $selected = $i == $year ? ' selected="selected"' : ''; $selectYear.= '<option value="'.$i.'"'.$selected.'>'.$i.'</option>'; } $selectYear.= '</select>'; // 日期:月份下拉控件 $month = isset($_POST['month']) ? $_POST['month'] : $thenMonth; $selectMonth = '<select name="month" onchange="this.form.submit();">'; foreach($aryMonth as $k => $v){ $k = sprintf('%02d', ($k + 1)); $selected = $k == $month ? ' selected="selected"' : ''; $selectMonth.= '<option value="'.$k.'"'.$selected.'>'.$v.'月</option>'; } $selectMonth.= '</select>'; unset($k, $v); // 日期:星期HTML $aryWeek = array('一', '二', '三', '四', '五', '六'); $isSunday AND array_unshift($aryWeek, '日'); $isSunday OR array_push($aryWeek, '日'); $weekTrHtml = '<tr>'; foreach($aryWeek as $v){ $weekTrHtml.= '<td>周'.$v.'</td>'; } $weekTrHtml.= '</tr>'; unset($v); // 以下为计算当月的天数以及前后月份作为空位补齐日历表格 $allDay = calenderNum('t', $year, $month, $thenDay); // 指定月份的天数 $monthFirstDay2weekVal = calenderNum('w', $year, $month, 1); // 指定日期的星期数 $aryDay = range(1, $allDay); // 计算第一排表格空位数以及是否需要补齐 $each = $isSunday ? 7 : 6; $firstNum = $isSunday ? $monthFirstDay2weekVal : ($monthFirstDay2weekVal-1); $isAddDay = $firstNum % $each; // 用上月的最后几天补齐空位数 if($isAddDay != 0 ){ $prevMonth = intval($month) - 1; $prevMonthDay = calenderNum('t', $year, $prevMonth, 1); // 计算上月的总天数 $aryFirst = range($prevMonthDay - $firstNum + 1, $prevMonthDay); $aryDay = array_merge($aryFirst, $aryDay); } // 计算最后一排表格空位数以及是否需要补齐 $lastNum = count($aryDay) % 7; $lastNum == 0 OR $aryLast = range(1, (7 - $lastNum)); isset($aryLast) AND $aryDay = array_merge($aryDay, $aryLast); // 循环输出日期的表格 $x = count($aryDay) / 7; $y = 1; $dayTrHtml = '<tr>'; foreach($aryDay as $i => $rsDay){ $strDay = str_pad($rsDay,2,'0',STR_PAD_LEFT); $dayOass = ($i < $firstNum || $i >= $firstNum + $allDay) ? ' class="z-pass"' : '' ; // 把非本月的日期变为灰色 $dayOn = ($thenYear == $year && $thenMonth == $month && $strDay == $thenDay && empty($dayOass)) ? ' class="z-on"' : ''; // 对当前的日期加亮显示 $dayTrHtml.= '<td'.$dayOn.$dayOass.'>'.$strDay.'</td>'; if(($i + 1) % 7 == 0){ $x == $y OR $dayTrHtml.= '</tr>'.'<tr>'; $y++; } } $dayTrHtml.= '</tr>'; ?>
模板HTML代码
<!DOCTYPE HTML> <html> <head> <meta charset="utf-8" /> <title>PHP程序输出日历</title> <style type="text/css"> /* global css document => author:intval@163.com */ html{height:100%;-overflow-y:scroll;border:0}body{min-height:100%;-height:100%;position:relative} body,h1,h2,h3,h4,h5,h6,p,div,dl,dt,dd,ul,ol,li,form,button,input,textarea,th,td{margin:0;padding:0;border:0} h1,h2,h3,h4,h5,h6,select,input,textarea,button,table{font-size:100%;font-weight:normal} ul,ol,dl{list-style:none}a{text-decoration:none;color:#36c}u{text-decoration:none}i,em{font-style:normal} a:hover{text-decoration:underline}a img{border:none}a,select,input,textarea{outline:none}.fr{float:right} table{border-collapse:collapse;border-spacing:0}th{text-align:left;font-weight:normal}.fl{float:left} .cf:before,.cf:after{content:"";display:table}.cf:after{clear:both}.cf{+zoom:1} body{color:#000;background:#fff;font:12px/15px Microsoft YaHei} #u-calender{padding:50px 0 0 200px} #u-calender #u-slt{font-size:14px} #u-slt select{font:13px Verdana} #u-calender .z-on{background:#36c;color:#fff; font-weight:700} #u-calender .z-pass{background:#efefef;color:#ccc} #u-calender table{ border-top:1px solid #ccc; border-right:1px solid #ccc; 300px} #u-calender table tr td{ border-bottom:1px solid #ccc; border-left:1px solid #ccc;text-align:center;padding:5px 0} </style> </head> <body> <div id="u-calender"> <table><tr><td colspan="7" id="u-slt"><form action="" method="post">月份:<?php echo $selectMonth;?> 年份:<?php echo $selectYear;?></form></td></tr> <?php echo $weekTrHtml.$dayTrHtml;?> </table> </div> </body> </html>
代码完成后实现的效果截图：
