这是我的PHP页面，位于我的虚构域http://www.myradiostation1.localhost（测试域，不可通过Web访问）。它与http://www.vikingfm.co.uk/on-air/station-schedule/类似，但不一样 - 并且是我自己的CSS更改样式表/网站设计更改的测试副本
<link rel="stylesheet" type="text/css" href="index.css" media="all">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<div class="content-inner">
<div class="row">
<div class="column size-10">
<div class="large-schedule-widget main-col main-col-large widgetbox">
<table class="schedule-table">
<!-- column headers -->
<thead>
<tr>
<th class="hide">Units</th>
<th>Hours</th>
<th>Monday</th>
<th class="active">Tuesday</th>
<th>Wednesday</th>
<th>Thursday</th>
<th>Friday</th>
<th>Saturday</th>
<th>Sunday</th>
</tr>
</thead>
<tbody>
<tr id="units-0">
<td class="hide">0</td>
<!-- Every other row echo an hour block -->
<td class="time" rowspan="2">00:00</td>
<!-- start polling days -->
<!-- finish echo a row for each of the 48 units -->
</tr>
<tr id="units-1">
<td class="hide">1</td>
<!-- Every other row echo an hour block -->
</tr>
<!-- echo a row for each of the 48 units -->
<tr id="units-2">
<td class="hide">2</td>
<!-- Every other row echo an hour block -->
<td class="time" rowspan="2">01:00</td>
<!-- start polling days -->
<!-- finish echo a row for each of the 48 units -->
</tr>
<tr id="units-3">
<td class="hide">3</td>
<!-- start polling days -->
<!-- finish echo a row for each of the 48 units -->
</tr>
<tr id="units-4">
<td class="hide">4</td>
<!-- Every other row echo an hour block -->
<td class="time" rowspan="2">02:00</td>
<tr id="units-5">
<td class="hide">5</td>
<!-- start polling days -->
<!-- finish echo a row for each of the 48 units -->
</tr>
<tr id="units-6">
<td class="hide">6</td>
<!-- Every other row echo an hour block -->
<td class="time" rowspan="2">03:00</td>
<!-- start polling days -->
<!-- finish echo a row for each of the 48 units -->
</tr>
<tr id="units-7">
<td class="hide">7</td>
<!-- start polling days -->
<!-- finish echo a row for each of the 48 units -->
</tr>
<tr id="units-8">
<td class="hide">8</td>
<!-- Every other row echo an hour block -->
<td class="time" rowspan="2">04:00</td>
<!-- start polling days -->
<!-- finish echo a row for each of the 48 units -->
</tr>
<tr id="units-9">
<td class="hide">9</td>
<!-- start polling days -->
<!-- finish echo a row for each of the 48 units -->
</tr>
<tr id="units-10">
<td class="hide">10</td>
<!-- Every other row echo an hour block -->
<td class="time" rowspan="2">05:00</td>
<!-- start polling days -->
<!-- finish echo a row for each of the 48 units -->
</tr>
<tr id="units-11">
<td class="hide">11</td>
<!-- start polling days -->
<!-- finish echo a row for each of the 48 units -->
</tr>
<tr id="units-12">
<td class="hide">12</td>
<!-- Every other row echo an hour block -->
<td class="time" rowspan="2">06:00</td>
<!-- start polling days -->
<!-- finish echo a row for each of the 48 units -->
</tr>
<tr id="units-13">
<td class="hide">13</td>
<!-- start polling days -->
<!-- finish echo a row for each of the 48 units -->
</tr>
<tr id="units-14">
<td class="hide">14</td>
<!-- Every other row echo an hour block -->
<td class="time" rowspan="2">07:00</td>
<!-- start polling days -->
<!-- finish echo a row for each of the 48 units -->
</tr>
<tr id="units-15">
<td class="hide">15</td>
<!-- start polling days -->
<!-- finish echo a row for each of the 48 units -->
</tr>
<tr id="units-16">
<td class="hide">16</td>
<!-- Every other row echo an hour block -->
<td class="time" rowspan="2">08:00</td>
<!-- start polling days -->
<!-- finish echo a row for each of the 48 units -->
</tr>
<tr id="units-17">
<td class="hide">17</td>
<!-- start polling days -->
<!-- finish echo a row for each of the 48 units -->
</tr>
<tr id="units-18">
<td class="hide">18</td>
<!-- Every other row echo an hour block -->
<td class="time" rowspan="2">09:00</td>
<!-- start polling days -->
<!-- finish echo a row for each of the 48 units -->
</tr>
<tr id="units-19">
<td class="hide">19</td>
<!-- start polling days -->
<!-- finish echo a row for each of the 48 units -->
</tr>
<tr id="units-20">
<td class="hide">20</td>
<!-- Every other row echo an hour block -->
<td class="time current_time" rowspan="2">10:00</td>
<!-- start polling days -->
<!-- finish echo a row for each of the 48 units -->
</tr>
<tr id="units-21">
<td class="hide">21</td>
<!-- start polling days -->
<!-- finish echo a row for each of the 48 units -->
</tr>
<tr id="units-22">
<td class="hide">22</td>
<!-- Every other row echo an hour block -->
<td class="time" rowspan="2">11:00</td>
<!-- start polling days -->
<!-- finish echo a row for each of the 48 units -->
</tr>
<tr id="units-23">
<td class="hide">23</td>
<!-- start polling days -->
<!-- finish echo a row for each of the 48 units -->
</tr>
<tr id="units-24">
<td class="hide">24</td>
<!-- Every other row echo an hour block -->
<td class="time" rowspan="2">12:00</td>
<!-- start polling days -->
</tr>
<tr id="units-25">
<td class="hide">25</td>
<!-- start polling days -->
<!-- finish echo a row for each of the 48 units -->
</tr>
<tr id="units-26">
<td class="hide">26</td>
<!-- Every other row echo an hour block -->
<td class="time" rowspan="2">13:00</td>
<!-- start polling days -->
<!-- finish echo a row for each of the 48 units -->
</tr>
<tr id="units-27">
<td class="hide">27</td>
<!-- start polling days -->
<!-- finish echo a row for each of the 48 units -->
</tr>
<tr id="units-28">
<td class="hide">28</td>
<!-- Every other row echo an hour block -->
<td class="time" rowspan="2">14:00</td>
<!-- start polling days -->
<!-- finish echo a row for each of the 48 units -->
</tr>
<tr id="units-29">
<td class="hide">29</td>
<!-- start polling days -->
<!-- finish echo a row for each of the 48 units -->
</tr>
<tr id="units-30">
<td class="hide">30</td>
<!-- Every other row echo an hour block -->
<td class="time" rowspan="2">15:00</td>
<!-- start polling days -->
<!-- finish echo a row for each of the 48 units -->
</tr>
<tr id="units-31">
<td class="hide">31</td>
<!-- start polling days -->
<!-- finish echo a row for each of the 48 units -->
</tr>
<tr id="units-32">
<td class="hide">32</td>
<!-- Every other row echo an hour block -->
<td class="time" rowspan="2">16:00</td>
<!-- start polling days -->
<!-- finish echo a row for each of the 48 units -->
</tr>
<tr id="units-33">
<td class="hide">33</td>
<!-- start polling days -->
<!-- finish echo a row for each of the 48 units -->
</tr>
<tr id="units-34">
<td class="hide">34</td>
<!-- Every other row echo an hour block -->
<td class="time" rowspan="2">17:00</td>
<!-- start polling days -->
<!-- finish echo a row for each of the 48 units -->
</tr>
<tr id="units-35">
<td class="hide">35</td>
<!-- start polling days -->
<!-- finish echo a row for each of the 48 units -->
</tr>
<tr id="units-36">
<td class="hide">36</td>
<!-- Every other row echo an hour block -->
<td class="time" rowspan="2">18:00</td>
<!-- start polling days -->
<!-- finish echo a row for each of the 48 units -->
</tr>
<tr id="units-37">
<td class="hide">37</td>
<!-- start polling days -->
<!-- finish echo a row for each of the 48 units -->
</tr>
<tr id="units-38">
<td class="hide">38</td>
<!-- Every other row echo an hour block -->
<td class="time" rowspan="2">19:00</td>
<!-- start polling days -->
<!-- finish echo a row for each of the 48 units -->
</tr>
<tr id="units-39">
<td class="hide">39</td>
<!-- start polling days -->
<!-- finish echo a row for each of the 48 units -->
</tr>
<tr id="units-40">
<td class="hide">40</td>
<!-- Every other row echo an hour block -->
<td class="time" rowspan="2">20:00</td>
<!-- start polling days -->
<!-- finish echo a row for each of the 48 units -->
</tr>
<tr id="units-41">
<td class="hide">41</td>
<!-- start polling days -->
<!-- finish echo a row for each of the 48 units -->
</tr>
<tr id="units-42">
<td class="hide">42</td>
<!-- Every other row echo an hour block -->
<td class="time" rowspan="2">21:00</td>
<!-- start polling days -->
<!-- finish echo a row for each of the 48 units -->
</tr>
<tr id="units-43">
<td class="hide">43</td>
<!-- start polling days -->
<!-- finish echo a row for each of the 48 units -->
</tr>
<tr id="units-44">
<td class="hide">44</td>
<!-- Every other row echo an hour block -->
<td class="time" rowspan="2">22:00</td>
<!-- start polling days -->
<!-- finish echo a row for each of the 48 units -->
</tr>
<tr id="units-45">
<td class="hide">45</td>
<!-- start polling days -->
<!-- finish echo a row for each of the 48 units -->
</tr>
<tr id="units-46">
<td class="hide">46</td>
<!-- Every other row echo an hour block -->
<td class="time" rowspan="2">23:00</td>
<!-- start polling days -->
<!-- finish echo a row for each of the 48 units -->
</tr>
<tr id="units-47">
<td class="hide">47</td>
<!-- start polling days -->
<!-- finish echo a row for each of the 48 units -->
</tr>
<tr id="units-48">
<td class="hide">48</td>
<!-- start polling days -->
<!-- finish echo a row for each of the 48 units -->
</tr>
</tbody>
</table>
</div> <!-- end .main-col -->
<script>
var doFades = true;
var MyLocalhostStations = {
Schedule : {}
};
$(document).ready(function(){
MyLocalhostStations.Schedule.days = ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday']
MyLocalhostStations.Schedule.Show = function () {
_s = null;
_startDate = null;
_endDate = null;
this.days = MyLocalhostStations.Schedule.days;
_selector = '';
this.setShow = function(s) {
this._s = s;
this._startDate = new Date( parseInt(s.startminutes, 10) * 1000);
this._endDate = new Date(parseInt(s.endminutes, 10) * 1000 );
};
this.getEndDate = function(){
return this._endDate;
}
this.getStartDate = function(){
return this._startDate;
}
this._getShowDay = function (){
return this.days[this.getStartDate().getDay()];
};
this._getShowUnitsTaken = function(){
// if it's the same day
return this._getEndUnits() - this._getStartUnits();
};
this._getEndUnits = function(){
if(this.getEndDate().getHours() == 0)
{
//console.log(this._s.longname +' ends at midnight');
return 48;
}
return this.getEndDate().getMinutes() !== 0 ? (this.getEndDate().getHours() * 2) : (this.getEndDate().getHours() * 2);
};
this._getStartUnits = function(){
if(this.getStartDate().getHours() == 0)
{
return 0;
}
return this.getStartDate().getMinutes() !== 0 ? (this.getStartDate().getHours() * 2) : (this.getStartDate().getHours() * 2);
};
this.getCellPositions = function() {
return {
'start' : this.getStartDate(),
'end' : this.getEndDate(),
'colIndex' : this.getStartDate().getDay() + 2,
'startUnits' : this._getStartUnits(),
'endUnits' : this._getEndUnits(),
'unitsTaken' : this._getShowUnitsTaken()
}
};
this.pad = function(number){
return number < 10 ? '0'+number : number;
};
// return the table cell html.
this.toHtml = function () {
var d = new Date();
var units = this._getStartUnits();
var rowspan = this._getShowUnitsTaken();
var desc = this._s.description;
var name = this._s.longname;
var starttime = this.pad(this.getStartDate().getHours()) + ':' + this.pad(this.getStartDate().getMinutes());
var endtime = this.pad(this.getEndDate().getHours()) + ':' + this.pad(this.getEndDate().getMinutes());
var site = this._s.websitelink;
var cls = this.isActive() ? 'current-program' : '';
var isToday = this.getStartDate().getDay() === d.getDay() ? 'active-program' : '';
var html = '<td class="schedule-show ' + isToday + ' ' + cls + '" rowspan="' + rowspan + '" data-start="' + this.getStartDate() + '" data-end="' + this.getEndDate() + '">';
html += '<div>';
html += '<a href="' + site + '" title="' + desc + '">' + name + '</a>';
html += '</div>';
if(doFades)
{
html += '<div class="schedule_details clearfix" style="display:none;">';
html += '<img width="105px" height="105px" alt="' + desc + '" src="' + this._s.showimage + '">';
html += '<strong>' + name + '</strong>';
html += '<p>' + desc + '</p>';
html += '<span>' + starttime + ' - ' + endtime +'</span>';
html += '</div>';
}
html += '</td>';
return html;
};
this.setTableSelector = function(sel){
this._selector = sel;
};
// check if we should add the active class.
this.isActive = function(){
var t = new Date();
return t >= this.getStartDate() && t <= this.getEndDate();
};
};
MyLocalhostStations.Schedule.ScheduleGen = function(){
return {
insertShow : function(show) {
var p = show.getCellPositions();
$('tr#units-' + p.startUnits).append(show.toHtml());
},
init : function (stationName){
var self = this;
// load the schedule.
$.getJSON('http://www.myradiostation2.localhost/schedule.php?callback=?', {
name: 'North FM'
}, function(json){
// loop each show and append to our giant table.
// this is well sick.
if(json.success === false)
{
$('.content-inner table').remove();
$('<div>errors</div>').appendTo('.content-inner');
}
else
{
var currentDay = '';
var day = 0;
// highlight the current time..
var d = new Date();
var weekStart = new Date();
weekStart.setDate(d.getDate()-6-(d.getDay()||7));
$.each(json.data.schedule, function(i, broadcast){
var dStart = new Date( parseInt(broadcast.startminutes, 10) * 1000);
var dEnd = new Date(parseInt(broadcast.endminutes, 10) * 1000 );
/*// transform to a show object defined above, if the show spans 2 days we create two show objects.
// IF THE SHOW STARTS/ENDS AT MIDNIGHT, DON'T SPLIT IT.
if(dStart.getHours() !== 0 && dEnd.getHours() !== 0 && dStart.getDate() != dEnd.getDate())
{
var showOne = new MyLocalhostStations.Schedule.Show();
showOne.setShow(broadcast);
// set to midnight
showOne.getEndDate().setHours(0);
showOne.getEndDate().setMinutes(dStart.getMinutes());
// append first half of show.
self.insertShow(showOne);
// handle second half.
var showTwo = new MyLocalhostStations.Schedule.Show();
showTwo.setShow(broadcast);
showTwo.getStartDate().setDate(showTwo.getStartDate().getDate() + 1);
showTwo.getStartDate().setHours(0);
showTwo.getStartDate().setMinutes(dEnd.getMinutes());
//console.log('2nd Half Start: ' + showTwo.getStartDate());
//console.log('2nd Half End: ' + showTwo.getEndDate());
self.insertShow(showTwo);
}
else
{*/
var show = new MyLocalhostStations.Schedule.Show();
show.setShow(broadcast);
show.setTableSelector('table#schedule');
// add the show to the table. Thankfully the order these come out the API means they get added
// in the right place. So don't change the schedule builder code!
self.insertShow(show);
//}
});
var days = MyLocalhostStations.Schedule.days;
// apply the current day / time classes
$('th:contains('+ days[d.getDay()]+')').addClass('active');
$('td.time').each(function(i, cell){
// get the value, convert to int.
var hours = $(cell).html().split(':')[0];
// compare the hours with now, add class if matched.
if(parseInt(hours, 10) === d.getHours())
{
$(cell).addClass('current_time');
}
});
}
if(doFades)
{
// apply events to show info fade in / out.
$('td.schedule-show').hover(function(){
$(this).find('.schedule_details').fadeIn('fast');
}, function(){
$(this).find('.schedule_details').fadeOut('fast');
});
}
});
}
};
}();
MyLocalhostStations.Schedule.ScheduleGen.init(twittiName);
});
</script>
和我在http://www.myradiostation2.localhost/schedule.php?callback=?&name=North+FM的JSONP代码：
<?php
header('Content-type: application/javascript;');
header("access-control-allow-origin: *");
header("Access-Control-Allow-Methods: GET");
//db connection detils
$host = "localhost";
$user = "test";
$password = "test";
$database = "myradiostation1";
//make connection
$server = mysql_connect($host, $user, $password);
$connection = mysql_select_db($database, $server);
//query the database
$query = mysql_query("SELECT *, DATE_FORMAT(start, '%d/%m/%Y %H:%i:%s') AS start,
DATE_FORMAT(end, '%d/%m/%Y %H:%i:%s') AS end FROM radiostation1");
//loop through and return results
for ($x = 0, $numrows = mysql_num_rows($query); $x < $numrows; $x++) {
$row = mysql_fetch_assoc($query);
$shows[$x] = array("id" => $row["id"], "startminutes" => $row["startminutes"], "start" => $row["start"], "endminutes" => $row["endminutes"],"end" => $row["end"],"mediumname" => $row["mediumname"], "longname" => $row["longname"], "description" => $row["description"],"short_id" => $row["short_id"],"promomessage" => $row["promomessage"],"email" => $row["email"],"phonenumber" => $row["phonenumber"],"textnumber" => $row["textnumber"],"textprefix" => $row["textprefix"],"showimage" => $row["showimage"],"longdescription" => $row["longdescription"],"facebooklink" => $row["facebooklink"],"otherlink" => $row["otherlink"],"websitelink" => $row["websitelink"],"keywords" => $row["keywords"] );
}
//echo JSON to page
$response = $_GET["callback"] . "(" . json_encode($shows) . ");";
echo $response;
JSONP有效，但我的代码没有显示在HTML表格中。
为什么我的表格空白而且没有显示代码？
答案 0 :(得分：2)
PHP中的数据结构只是一个数组：
$foo = array(
0 => array(... data from row #1 of the query),
1 => array(... data from row #2 of the query),
etc...
);
以JSON格式，
[{..row1 data..},{..row2 data..},....,{..row n data..}]
在该结构中，您没有success密钥或data密钥。因此，您的JS代码中不存在json.data，json.success也不存在。
如果你想要那种结构，你必须这样做：
$foo = array(
'success' => true,
'data' => array()
);
然后
while ($row = mysql_fetch_assoc($result)) {
$foo['data'][] = $row;
^^^^^^^^---- you don't have this.
}
echo $_GET['callback'] . "(" . json_encode($foo) . ")";
答案 1 :(得分：0)
您要返回的JSON是一个数组，它没有data属性，因此json.data.schedule会出错。
答案 2 :(得分：0)
很难理解你的代码，因为你有很多东西，我的建议是尝试用ajax请求做一个简单的页面，用一个“for”看看发生了什么，并使用一些调试工具，并使用的console.log。
实施例
<script>
$.getJSON('http://www.myradiostation2.localhost/schedule.php?callback=?', {
name: 'North FM'
}, function(json){
console.log(json);
for(var key in json){
console.log("********"+key+"*********");
console.log(json[key]);
}
});
</script>
通过这种方式，您可以查看所有内容是否与您的请求一致，如果您的脚本中有一个良好的逻辑，那么您可以获取该对象并尝试查看创建html是否正常工作等等。 / p>
我知道这不是最好的答案，但是调试代码的方法之一。
为什么你使用jsonp？今天通常你可以使用简单的json。