[英]JavaScript: How to get variable from JavaScript to PHP
我想從 js 到 php 獲取一個變量。 從 $('.form_datetime')(js) 到 $TimeFrom(php)。 我知道這很簡單,但還沒有奏效。 我不想更改 URL 中的參數(POST、GET、$_REQUEST)。
<div class="container">
<form action="" class="form-horizontal" role="form">
<fieldset>
<div class="form-group">
<label for="dtp_input1" class="col-md-2 control-label">Time from </label>
<div class="input-group date form_datetime col-md-5" data-date="1979-09-16T05:25:07Z" data-date-format="dd MM yyyy - HH:ii p" data-link-field="dtp_input1">
<input class="form-control" size="16" type="text" value="" readonly>
<span class="input-group-addon"><span class="glyphicon glyphicon-remove"></span></span>
<span class="input-group-addon"><span class="glyphicon glyphicon-th"></span></span>
</div>
<input type="hidden" id="dtp_input1" value="" /><br/>
</div>
</fieldset>
</form>
</div>
<?php
$TimeFrom = 0;
/* Get time from datetimepicker */
echo " My selected time is: " . $TimeFrom;
?>
在腳本中,我需要創建用於傳輸值的函數。
<script type="text/javascript">
$('.form_datetime').datetimepicker({
language: 'fr',
weekStart: 1,
todayBtn: 1,
autoclose: 1,
todayHighlight: 1,
startView: 2,
forceParse: 0,
showMeridian: 1
});
</script>
除非您提出新請求或進行 Ajax,否則您不能讓 javascript 將信息傳遞給 PHP 以執行某些操作。 JavaScript 在客戶端運行,PHP 在服務器端運行。
如果您想自動更改,您可以在日期更改時修改包含代碼的日期選擇器...使用 jquery 在網絡上更新...
$('.form_datetime').datetimepicker({
language: 'fr',
weekStart: 1,
todayBtn: 1,
autoclose: 1,
todayHighlight: 1,
startView: 2,
forceParse: 0,
showMeridian: 1
}).on('dp.change', function (e) {
$('#selected-date').html(e.date);
});
<?php
$TimeFrom = 0;
echo ' My selected time is: <span id="selected-date">';
?>
也許我解決了這個問題。
<div class="container">
<form action="" class="form-horizontal" role="form">
<fieldset>
<div class="form-group">
<label for="dtp_input1" class="col-md-2 control-label">Time from </label>
<div class="input-group date form_datetime col-md-5" data-date="1979-09-16T05:25:07Z" data-date-format="dd MM yyyy - HH:ii p" data-link-field="dtp_input1">
<input onchange="GetDataFrom()" class="form-control" size="16" type="text" value="" readonly>
<span class="input-group-addon"><span class="glyphicon glyphicon-remove"></span></span>
<span onclick="" class="input-group-addon"><span class="glyphicon glyphicon-th"></span></span>
</div>
<input type="hidden" id="dtp_input1" value="" /><br/>
</div>
</fieldset>
</form>
</div>
<div id="print-date">
<?php
echo "print date: 0";
?>
</div>
<script
src="https://code.jquery.com/jquery-3.3.1.js"
integrity="sha256-2Kok7MbOyxpgUVvAk/HJ2jigOSYS2auK4Pfzbm7uH60="
crossorigin="anonymous"></script>
<script type="text/javascript" src="./js/bootstrap.min.js"></script>
<script type="text/javascript" src="./js/bootstrap-datetimepicker.js" charset="UTF-8"></script>
<script type="text/javascript" src="./js/locales/bootstrap-datetimepicker.cs.js" charset="UTF-8"></script>
<script type="text/javascript">
function GetDataFrom()
{
var date = $( ".form_datetime" ).datetimepicker("getDate"); //to store it in a variable.
$("#print-date").load("test.php",{SelectedDate: date});
}
$('.form_datetime').datetimepicker({
language: 'cs',
weekStart: 1,
todayBtn: 1,
autoclose: 1,
todayHighlight: 1,
startView: 2,
forceParse: 0,
showMeridian: 1
});
</script>
在 test.php 中
<?php
$SelectedDate = $_POST['SelectedDate'];
echo "print date: : " . $SelectedDate;
?>
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