使用javascript日期对象存储/检索/格式化日期/时间
我的问题是:使用javascript日期对象存储/检索/格式化日期/时间,javascript,date,datetime,object,Javascript,Date,Datetime,Object,我的问题是: 你们当中有专家使用javascript日期“对象”(ms)的概念作为“日期标准”并将其存储在dbs中吗 这个想法有利弊吗 背景: 最近我一直在研究Javascript日期对象及其使用。 作为练习,我创建了一个页面,让我了解每个命令的用法, 也可以作为我的参考 作为存储日期的标准方式,“对象”(毫秒)的概念是intruiting 所以我敲出了创建“对象”的代码,将其作为varchar存储在表中,然后将其取出 并将其用于任何需要的目的 在尝试使用MySQL(YYYY-MM-DD)、标准
谢谢 我不太明白。。。但将日期(或任何定义良好的内容)存储为varchars是一个大禁忌。您可以在MySQL中存储日期,如YYYY/MM/DD或YYYY/MM/DD HH:MM:SS,您必须为US格式的MM/DD/yyyyy、英文格式的DD/MM/YYYY操作日期,为strotime(英文格式)更改日期。但是,如果您以ms格式存储“日期”——1383311740813(适用于11/1/13 6:15:40)——您只需将格式从“通用格式”转换为您想要的任何格式。
.divtest {
width:500px;
margin:0px auto;
text-align:center;
background-color:#C1C1FD;
padding:2em;
border: 10px solid #FCD1E3;}
.span1 {
color:black;}
.div1 {
color:red;
background-color:#C6CDFD;}
<body>
<div style="width:500px; margin:0px auto; text-align:center;">
<div id = "test1" class="div1"><span class="span1">Date:</span></div>
<div id = "test2" class="div1"><span class="span1">Object:</span></div>
<div id = "test3" class="div1"><span class="span1">Returned Object:</span></div>
<div id = "test4" class="div1"><span class="span1">Returned Date/Time:</span></div>
<div id = "test5" class="div1"><span class="span1">Returned Year:</span></div>
<div id = "test6" class="div1"><span class="span1">Returned Month:</span></div>
<div id = "test7" class="div1"><span class="span1">Returned Day:</span></div>
<div id = "test8" class="div1"><span class="span1">Returned Hours:</span></div>
<div id = "test9" class="div1"><span class="span1">Returned Minutes:</span></div>
</div>
$(document).ready(function(e) {
var testdate = "12-12-2013";
var testobject = Date.parse("12/12/2013 11:22:33");
$('#test1').append(testdate);
$('#test2').append(testobject);
$.ajax({
type: "POST",
url: "timedatewritereadbackend.php",
data: {testobject: testobject},
dataType: 'json'
})
.done( function(result) {
$('#test3').append(result.datetimeobject);
var milliseconds = result.datetimeobject;
var settime = new Date( milliseconds * 1 );//1386876153000
$('#test4').append(settime.toString());
$('#test5').append(settime.getFullYear());
$('#test6').append(settime.getMonth());
$('#test7').append(settime.getDate());
$('#test8').append(settime.getHours());
$('#test9').append(settime.getMinutes());
console.log("Object: " + result.datetimeobject + "--" + "Var milli: " + milliseconds + "--" + "Var settime: " + settime);
})
.fail(function(jqXHR, textStatus, errorThrown){ console.log(jqXHR.responseText, textStatus, errorThrown);
$('#returnedobject').append("Fail");
})
.always(function(data, textStatus, jqXHR){
console.log(data, textStatus, jqXHR);
});
});//End of ready
$testobject = $_POST['testobject'];
$localid = '138';
$host = XXXXX;
$user = XXXXX;
$password = XXXXX;
$dbname = XXXXX;
$cxn = mysqli_connect($host,$user,$password,$dbname);
if (mysqli_connect_errno()) {echo "No connection" . mysqli_connect_error();}
$query = " UPDATE testtable
SET datetimeobject = '$testobject'
WHERE localid = $localid " ;
$result = mysqli_query($cxn, $query) or die ("could not query database 1");
$query = " SELECT datetimeobject
FROM testtable
WHERE localid = $localid " ;
$result = mysqli_query($cxn, $query) or die ("could not connect");
$row = mysqli_fetch_array($result);
$variablestopass = array
(
'datetimeobject' => $row['datetimeobject']
);
echo json_encode($variablestopass);