使用 AJAX 从 PHP 文件获取响应
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Get response from PHP file using AJAX
提问by user115422
So here's my issue, I am using AJAX (jQuery) to post a form to process.phpbut the page actually needs to echo out a response such as appleor plum. I'm not sure how to take the response from process.phpand have it stored as a variable...
所以这是我的问题，我使用 AJAX (jQuery) 将表单发布到，process.php但页面实际上需要回显诸如appleor 之类的响应plum。我不确定如何获取响应process.php并将其存储为变量...
Here's the code I have so far:
这是我到目前为止的代码：
<script type="text/javascript">
function returnwasset(){
alert('return sent');
$.ajax({
type: "POST",
url: "process.php",
data: somedata;
success function(){
//echo what the server sent back...
}
});
}
</script>
Also will I need to echo the response in process.phpin json? or will plain text be fine?
我还需要process.php在 json 中回显响应吗？或者纯文本可以吗？
Sorry if this sounds like a stupid question, this is my first time doing something as such in Ajax.
对不起，如果这听起来像一个愚蠢的问题，这是我第一次在 Ajax 中做这样的事情。
PS: How do I name the POST request in the above code?
PS：上面代码中的POST请求如何命名？
回答by Marc B
<?php echo 'apple'; ?>is pretty much literally all you need on the server.
<?php echo 'apple'; ?>几乎是您在服务器上所需的全部内容。
as for the JS side, the output of the server-side script is passed as a parameter to the success handler function, so you'd have
至于 JS 端，服务器端脚本的输出作为参数传递给成功处理函数，所以你有
success: function(data) {
alert(data); // apple
}
回答by Alex
The good practice is to use like this:
好的做法是这样使用：
$.ajax({
type: "POST",
url: "/ajax/request.html",
data: {action: 'test'},
dataType:'JSON',
success: function(response){
console.log(response.blablabla);
// put on console what server sent back...
}
});
and the php part is:
和 php 部分是：
<?php
if(isset($_POST['action']) && !empty($_POST['action'])) {
echo json_encode(array("blablabla"=>$variable));
}
?>
回答by Ethan
<script type="text/javascript">
function returnwasset(){
alert('return sent');
$.ajax({
type: "POST",
url: "process.php",
data: somedata;
dataType:'text'; //or HTML, JSON, etc.
success: function(response){
alert(response);
//echo what the server sent back...
}
});
}
</script>
回答by Tucker
in your PHP file, when you echo your data use json_encode (http://php.net/manual/en/function.json-encode.php)
在您的 PHP 文件中，当您回显数据时，请使用 json_encode ( http://php.net/manual/en/function.json-encode.php)
e.g.
例如
<?php
//plum or data...
$output = array("data","plum");
echo json_encode($output);
?>
in your javascript code, when your ajax completes the json encoded response data can be turned into an js array like this:
在您的 javascript 代码中，当您的 ajax 完成时，json 编码的响应数据可以变成这样的 js 数组：
$.ajax({
type: "POST",
url: "process.php",
data: somedata;
success function(json_data){
var data_array = $.parseJSON(json_data);
//access your data like this:
var plum_or_whatever = data_array['output'];.
//continue from here...
}
});
回答by Pankaj Thorat
var data="your data";//ex data="id="+id;
$.ajax({
method : "POST",
url : "file name", //url: "demo.php"
data : "data",
success : function(result){
//set result to div or target
//ex $("#divid).html(result)
}
});
