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  • 获取每月的周信息

    PHP版:

    <?php
    $current_year=2017;
    $current_month=10;
    
    $firstday = strtotime($current_year.'-'.$current_month.'-01');
    //计算本月头一天的星期一
    $monday=$firstday-86400*(date('N',$firstday)-1);//计算第一个周一的日期
    //由于每个月只有四周 让 $i 从 1 到 5 增加即可
    for ($i=1; $i <= 5; $i++) {
        $start=date("Y-m-d",$monday+($i-1)*86400*7);//起始周一
        $end=date("Y-m-d",$monday+$i*86399*7);//结束周日
        if(date('m',$monday+$i*86399*7)!=$current_month)
        {
            continue;
        }
        echo '第'.$i.'周 '.$start.' ~ '.$end."<br/>";//开始结束放入数组
    }
    ?>
    <!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=utf-8" />
    <title></title>
    </head>
    
    <body>
    </body>
    </html>

    JS版:

    <!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=utf-8" />
    <title></title>
    <script type="text/javascript">
    /**
     * 获取当前时间
     */
    function p(s) {
        return s < 10 ? '0' + s : s;
    }
    
    //根据时间获取当前月的周数,每周的周日为一周的开始
    function getWeekByMonth(date) {
        
        var y = date.getFullYear();
        var m = date.getMonth(); //月份
        var d = date.getDate();
        var now2 = y + '-' + p(m) + "-" + p(d);
        
        //获取本月1号对应的周数
        var monOneWeek = new Date(y, m - 1, 1);
        var week = monOneWeek.getDay();
        //获取本月的天数
        var monOneDay = new Date(y, m, 1);
        var date_count = (new Date(monOneDay.getTime() - 1000 * 60 * 60 * 24)).getDate();
        
        var days = date_count;
        var mod = 7 - week;
        var count = 1;
        var start = 1; //起始日期 1 号开始
        var s = "",
        ss = "";
        var end = start + mod - 1; //截止日期
        while (days >= 0) {
            //var end = start + 6;
            end = end > date_count ? date_count : end;
            s += "第" + count + "周:" + y + "年" + p(m) + "月" + "(" + p(start) + "-" + p(end) + ");" + "<br>";
            start = end + 1;
            end += 7;
            days -= 7;
            ss += days + ",";
            count++;
        }
        return s;
    }
    function getData() {
        //2017年10月1日
        var date5 = new Date(2017, 10, 01);
        document.write(getWeekByMonth(date5));
        
    }
    getData();
    
    </script>
    </head>
    
    <body>
    </body>
    </html>
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  • 原文地址:https://www.cnblogs.com/liuswi/p/7684123.html
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