[jQuery] 자바스크립트와 제이쿼리를 이용하여 나이를 구하는 방법 > 기술자료

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<script src="//code.jquery.com/jquery-1.8.3.min.js" type="text/javascript"></script>
<script>
$(window).load(function(){
    var dob = $('.age').data('age');
     
    var xmlHttp;
    function srvTime(){
        if (window.XMLHttpRequest) {
            xmlHttp = new XMLHttpRequest();
            xmlHttp.open('HEAD',window.location.href.toString(),false);
            xmlHttp.setRequestHeader("Content-Type", "text/html");
            xmlHttp.send('');
            return xmlHttp.getResponseHeader("Date");
        }else if (window.ActiveXObject) {
            xmlHttp = new ActiveXObject('Msxml2.XMLHTTP');
            xmlHttp.open('HEAD',window.location.href.toString(),false);
            xmlHttp.setRequestHeader("Content-Type", "text/html");
            xmlHttp.send('');
            return xmlHttp.getResponseHeader("Date");
        }
    }
    var st = srvTime();
     
    if(dob != ''){
    var str=dob.split('-');
    var today = new Date(st);
    var toMonth = today.getMonth()+1;
    var toDate = today.getDate();
    var toYear = today.getFullYear();
    var toAge = toYear - str[0];
     
    if (toMonth > str[1]){
        dayDiff = toAge;
    } else if (str[1] > toMonth) {
        dayDiff = toAge -1;
    } else {
        if (str[2] > toDate) {
            dayDiff =toAge -1;
        } else {
            var dayDiff = toAge;
        }
    }
     
    var age = parseInt(dayDiff);
    $('.age').html('( ' + toYear + '년 현재 : ' + age + '세 )');
    }
});
</script>
<input type="text" name="mb_birth" value="<?php echo $mb['mb_birth']; ?>" class="frm_input" size="15">
<span data-age="<?php echo $mb['mb_birth']; ?>-00-00" class="age"></span>



자료출처
http://oa-tools.blogspot.com/2015/09/jquery-javascript.html