我有下面的代码，试图从两个选定的框中获取变量与jQuery传递给PHP。所有似乎可以，但由于某种原因，我不能得到变量（JS错误：x1月1x）
<?php
// Handle AJAX request (start)
if( isset($_POST['ajax']) && isset($_POST['book']) && isset($_POST['chapter']) ){
echo json_encode($_POST['book'] . " " . $_POST['chapter']);
exit;
}
// Handle AJAX request (end)
?>
<!doctype html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.6.0/jquery.min.js"></script>
<script>
$(function() {
$("#json-one").change(function() {
var $dropdown = $(this);
$.getJSON("jsondata/data.json", function(data) {
var key = $dropdown.val();
var vals = [];
switch(key) {
case 'Genesis':
vals = data.Genesis.split(",");
break;
case 'Exodus':
vals = data.Exodus.split(",");
break;
case 'Leviticus':
vals = data.Leviticus.split(",");
break;
case 'Numbers':
vals = data.Numbers.split(",");
break;
case 'Deuteronomy':
vals = data.Deuteronomy.split(",");
break;
case 'base':
vals = ['Select book'];
}
var $jsontwo = $("#json-two");
$jsontwo.empty();
$.each(vals, function(index, value) {
$jsontwo.append("<option>" + value + "</option>");
});
});
});
});
</script>
</head>
<body >
<form method='post' action>
<select name='book' class='book' id='json-one'>
<option selected value="base">- Select Book -</option>
<option value="Genesis">Genesis</option>
<option value="Exodus">Exodus</option>
<option value="Leviticus">Leviticus</option>
<option value="Numbers">Numbers</option>
<option value="Deuteronomy">Deuteronomy</option>
</select>
<br />
<select name='chapter' class='chaper' id='json-two'>
<option>Please choose from above</option>
</select>
<input type='button' name='submit' value='click' id='but' />
</form>
<!-- Script -->
<script>
$(document).ready(function(){
$('#but').click(function(){
$("select.book").change(function () {
var selectedBook = $(this).children("option:selected").val();
});
$("select.chapter").change(function () {
var selectedChapter = $(this).children("option:selected").val();
});
if(selectedBook.length > 0 && selectedChapter.length > 0){
$.ajax({
type: 'post',
data: {ajax: 1, book: selectedBook, chapter: selectedChapter},
dataType: 'json',
success: function(response){
$('#response').text('response : ' + JSON.stringify(response) );
}
});
}
});
});
</script>
</body>
</html>我的jsondata/data.json如果重要的话是：
{
"Genesis": "1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50",
"Exodus": "1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40",
"Leviticus": "1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27",
"Numbers": "1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36",
"Deuteronomy": "1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34"
}
1条答案
按热度按时间k3fezbri1#
var selectedBook在可见性范围之外-在函数内部声明的变量在函数外部不可见