Javascript 使用Ajax将JS变量传递给PHP的方法?
我有一个codeigniter应用程序插入wordpress网站。我需要根据视图中的html选择选项值修改php中的短代码。短代码将表单添加到我的html页面。我认为我需要使用Ajax将数据从JS移动到PHP。我对如何完成这件事感到困惑。这是必须完成的基本顺序(不包括Ajax或任何其他需要的方法): 在我看来,我需要以下组件:Javascript 使用Ajax将JS变量传递给PHP的方法?,javascript,php,ajax,codeigniter,Javascript,Php,Ajax,Codeigniter,我有一个codeigniter应用程序插入wordpress网站。我需要根据视图中的html选择选项值修改php中的短代码。短代码将表单添加到我的html页面。我认为我需要使用Ajax将数据从JS移动到PHP。我对如何完成这件事感到困惑。这是必须完成的基本顺序(不包括Ajax或任何其他需要的方法): 在我看来,我需要以下组件: <html> <select id="select-service"> <option value="volvo">
<html>
<select id="select-service">
<option value="volvo">Volvo</option>
<option value="saab">Saab</option>
<option value="mercedes">Mercedes</option>
<option value="audi">Audi</option>
</select>
//This is where I am putting the short code I made in JS
<?php echo do_shortcode("shortCode GOES HERE"); ?>
</html>
<script>
function getService() {
var serviceItem = $('#select-service option:selected').text();
shortCode = "[wpi_checkout item='" + serviceItem + "']" ;
//AN AJAX SEQUENCE HERE?
var postUrl = GlobalVariables.baseUrl + '/ajax_serviceitem';
$.ajax({
url: postUrl,
method: 'post',
data: shortCode,
success: function(data) {
alert(data);
}
});
}
$(document).ready(getService);
$('select').on('change', getService);
</script>
我是走对了路还是把事情复杂化了
function getService() {
var serviceItem = $('#select-service option:selected').val();
data = {'shortCode':serviceItem};
//AN AJAX SEQUENCE HERE?
var postUrl = GlobalVariables.baseUrl + '/ajax_serviceitem';
$.ajax({
url: postUrl,
type: "POST",
dataType: 'json',
data : data,
success: function(data) {
alert(data);
}
});
}
====================================我看到的另一个修复是==================
public function ajax_serviceitem() {
$shortcode = $_POST['shortCode']
$this->load->view('myview', $shortcode);
//I am lost as to what to do next
}
您可以针对您的问题尝试以下解决方案: JS:
function getService() {
var serviceItem = $('#select-service option:selected').val();
data = {'shortCode':serviceItem};
//AN AJAX SEQUENCE HERE?
var postUrl = GlobalVariables.baseUrl + '/ajax_serviceitem';
$.ajax({
url: postUrl,
type: "POST",
dataType: 'json',
data : data,
success: function(response) {
if (response.status == 'success') {
console.log("Success Request");
$("#view_selector").html(response.my_view_file);
} else {
console.log("Fail Request");
}
}
});
}
public function ajax_serviceitem() {
if ($this->input->is_ajax_request()) {
$shortcode = $this->input->post('shortCode');
if (!empty($shortcode)) {
$my_view_file = $this->load->view('myview', $shortcode, TRUE);
$data['status'] = 'success';
$data['my_view_file'] = $my_view_file;
} else {
$data['status'] = 'error';
$data['my_view_file'] = "";
}
echo json_encode($data);
exit;
} else {
redirect('login/logout'); // Logout URL here
}
}
PHP:
function getService() {
var serviceItem = $('#select-service option:selected').val();
data = {'shortCode':serviceItem};
//AN AJAX SEQUENCE HERE?
var postUrl = GlobalVariables.baseUrl + '/ajax_serviceitem';
$.ajax({
url: postUrl,
type: "POST",
dataType: 'json',
data : data,
success: function(response) {
if (response.status == 'success') {
console.log("Success Request");
$("#view_selector").html(response.my_view_file);
} else {
console.log("Fail Request");
}
}
});
}
public function ajax_serviceitem() {
if ($this->input->is_ajax_request()) {
$shortcode = $this->input->post('shortCode');
if (!empty($shortcode)) {
$my_view_file = $this->load->view('myview', $shortcode, TRUE);
$data['status'] = 'success';
$data['my_view_file'] = $my_view_file;
} else {
$data['status'] = 'error';
$data['my_view_file'] = "";
}
echo json_encode($data);
exit;
} else {
redirect('login/logout'); // Logout URL here
}
}
我希望它会有所帮助。这里的问题是,尽管php工作是在服务器上完成的,但返回的变量是JS,因此它不会工作。我通过在视图中添加一些php来收集视图中的选项并从中生成短代码,从而解决了我的问题:
//First: In css I hid all the elements that the short code produces
//This select box is built by a foreach routine in my controller.
<html>
<select id="select-service">
<option value="volvo">Volvo</option>
<option value="saab">Saab</option>
<option value="mercedes">Mercedes</option>
<option value="audi">Audi</option>
</select>
//This is where I am putting the short code. I am grabbing $service['id'] from my database in my controller and sending it to the view. I am building a bunch of divs that reflect the values of the select options here rather than in the controller. I have to do this because the wordpress do_shortcode() hook will only work in the view.
<?php foreach($available_services as $service) {
$shortcode = "[wpi_checkout item='" . $service['id'] "' title ='session_ID' callback_function='ea_paypalcallback']"; ?>
<div id="<?php echo $service['id'] ?>" class="shortcode"><?php echo do_shortcode($shortcode)?></div>
<?php } ?>
</html>
成功了。你试过了吗?-您可能需要
shortCode={“shortCode”:serviceItem}代码>NikuNj--谢谢,我正在尝试这个方法,我没有收到任何错误,但是我在
中很难将短代码拉回来。我不知道如何把它拉回来。我试过
,但不起作用。也就是说,我返回空。@craig我不理解do\u short\u code函数,所以请解释更多。谢谢。do\u shortcode()
函数在Wordpress中用于在除Wordpress页面以外的页面(如插件)中运行Wordpress短代码。短代码的格式为[wpi\u checkout item='Volvo']
我正在用JS构建短代码,并将其发送到PHP,以便在do\u shortcode()函数中使用。因此,我需要返回$shortcode变量中的shortcode,例如do\u shortcode(“$shortcode”)
。