blocks|key|308673|text|您在以下位置缺少逗号|type|unstyled|depth|inlineStyleRanges|entityRanges|data|308674|'data':+{+'request':+"",+'target':+'arrange_url',+'method':+'method_target'+}|code-block|syntax|javascript|308675|此外，如果您希望return_first保存匿名函数的结果，则需要进行函数调用：|offset|length|style|CODE|308676|var+return_first+=+function+()+{
++++var+tmp+=+null;
++++$.ajax({
++++++++'async':+false,
++++++++'type':+"POST",
++++++++'global':+false,
++++++++'dataType':+'html',
++++++++'url':+"ajax.php?first",
++++++++'data':+{+'request':+"",+'target':+'arrange_url',+'method':+'method_target'+},
++++++++'success':+function+(data)+{
++++++++++++tmp+=+data;
++++++++}
++++});
++++return+tmp;
}();|308677|注意末尾的()。|308678|entityMap^0|0|0|8|C|0|0|5|2|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|U|8|@$I|V|J|W|K|L]]|9|@]|A|$]]|$1|M|3|N|5|D|7|X|8|@]|9|@]|A|$E|F]]|$1|O|3|P|5|6|7|Y|8|@$I|Z|J|10|K|L]]|9|@]|A|$]]|$1|Q|3|-4|5|6|7|11|8|@]|9|@]|A|$]]]|R|$]]

You are missing a comma after

<pre><code>'data': { 'request': "", 'target': 'arrange_url', 'method': 'method_target' }
</code></pre>

Also, if you want <code>return_first</code> to hold the result of your anonymous function, you need to make a function call:

<pre><code>var return_first = function () {
 var tmp = null;
 $.ajax({
 'async': false,
 'type': "POST",
 'global': false,
 'dataType': 'html',
 'url': "ajax.php?first",
 'data': { 'request': "", 'target': 'arrange_url', 'method': 'method_target' },
 'success': function (data) {
 tmp = data;
 }
 });
 return tmp;
}();
</code></pre>

Note <code>()</code> at the end.

blocks|key|91700|text|'async':+false说它已经折旧了。我确实注意到如果我在ajax成功时运行console.log('test1');，然后在ajax函数之后用普通的js运行console.log('test2');，test2在test1之前打印，所以问题是ajax调用有一个小的延迟，但不会停止函数的其余部分以获得结果。变量simply还没有被设置，所以你需要延迟下一个函数。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|91701|function+runPHP(){
++++var+input+=+document.getElementById("input1");
++++var+result+=+'failed+to+run+php';

++++$.ajax({+url:+'/test.php',
++++++++type:+'POST',
++++++++data:+{action:+'test'},
++++++++success:+function(data)+{
++++++++++++result+=+data;
++++++++}
++++});

++++setTimeout(function(){
++++++++console.log(result);
++++},+1000);
}|code-block|syntax|javascript|91702|在test.php上(以防你需要测试这个函数)|91703|function+test(){
++++print+'ran+php';
}

if(isset($_POST['action'])+&&+!empty($_POST['action']))+{
++++$action+=+htmlentities($_POST['action']);
++++switch($action)+{
++++++++case+'test'+:+test();break;
++++}
}|91704|entityMap^0|0|E|15|L|2A|L|2W|5|32|5|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@$9|R|A|S|B|C]|$9|T|A|U|B|C]|$9|V|A|W|B|C]|$9|X|A|Y|B|C]|$9|Z|A|10|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|11|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|12|8|@]|D|@]|E|$]]|$1|M|3|N|5|H|7|13|8|@]|D|@]|E|$I|J]]|$1|O|3|-4|5|6|7|14|8|@]|D|@]|E|$]]]|P|$]]

<code>'async': false</code> says it's depreciated. I did notice if I run <code>console.log('test1');</code> on ajax success, then <code>console.log('test2');</code> in normal js after the ajax function, <code>test2</code> prints before <code>test1</code> so the issue is an ajax call has a small delay, but doesn't stop the rest of the function to get results. The variable simply, was not set "yet", so you need to delay the next function. 

<pre><code>function runPHP(){
 var input = document.getElementById("input1");
 var result = 'failed to run php';

 $.ajax({ url: '/test.php',
 type: 'POST',
 data: {action: 'test'},
 success: function(data) {
 result = data;
 }
 });

 setTimeout(function(){
 console.log(result);
 }, 1000);
}
</code></pre>

on test.php (incase you need to test this function)

<pre><code>function test(){
 print 'ran php';
}

if(isset($_POST['action']) &amp;&amp; !empty($_POST['action'])) {
 $action = htmlentities($_POST['action']);
 switch($action) {
 case 'test' : test();break;
 }
}
</code></pre>

blocks|key|308772|text|因此，这是在最初的问题之后很长一段时间，从技术上讲，它并不是对如何使用Ajax调用填充问题所问的外部变量的直接回答。然而，在研究和响应中发现，如果不禁用调用中的异步函数，或者陷入看起来像是回调地狱的可能性，就很难做到这一点。我的解决方案是使用Axios。使用它极大地简化了我使用异步调用获取数据的方法。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|308773|例如，如果我试图通过来自JS的调用访问PHP中的会话变量，比如用户ID，这可能会出现问题。做这样的事情..|308774|async+function+getSession()+{
+'use+strict';
+const+getSession+=+await+axios("http:"+%2B+url+%2B+"auth/"+%2B+"getSession");
+log(getSession.data);//test
+return+getSession.data;
}|code-block|syntax|javascript|308775|它调用如下所示的PHP函数。|308776|public+function+getSession()+{
+$session+=+new+SessionController();
+$session->Session();
+$sessionObj+=+new+\stdClass();
+$sessionObj->user_id+=+$_SESSION["user_id"];
+echo+json_encode($sessionObj);
}|308777|要使用Axios调用此函数，请执行以下操作。|308778|getSession().then(function+(res)+{
+log(res);//test
+anyVariable+=+res;
+anyFunction(res);//set+any+variable+or+populate+another+function+waiting+for+the+data
});|308779|结果将是，在本例中是一个来自PHP的Json对象。|308780|{"user_id":"1111111-1111-1111-1111-111111111111"}|308781|您可以直接在Axios调用的response部分的函数中使用它，也可以设置一个变量或调用另一个函数。|308782|Axios调用的正确语法实际上如下所示。|308783|getSession().then(function+(res)+{
+log(res);//test
+anyVariable+=+res;
+anyFunction(res);//set+any+variable+or+populate+another+function+waiting+for+the+data
}).catch(function+(error)+{
+console.log(error);
});|308784|用于正确的错误处理。|308785|我希望这对任何有这些问题的人都有帮助。是的，我知道这在技术上并不是对这个问题的直接回答，但考虑到已经提供的答案，我觉得有必要提供这个替代解决方案，大大简化我在客户端和服务器端的代码。|308786|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/axios/axios^0|3D|5|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|1E|8|@]|9|@$A|1F|B|1G|1|1H]]|C|$]]|$1|D|3|E|5|6|7|1I|8|@]|9|@]|C|$]]|$1|F|3|G|5|H|7|1J|8|@]|9|@]|C|$I|J]]|$1|K|3|L|5|6|7|1K|8|@]|9|@]|C|$]]|$1|M|3|N|5|H|7|1L|8|@]|9|@]|C|$I|J]]|$1|O|3|P|5|6|7|1M|8|@]|9|@]|C|$]]|$1|Q|3|R|5|H|7|1N|8|@]|9|@]|C|$I|J]]|$1|S|3|T|5|6|7|1O|8|@]|9|@]|C|$]]|$1|U|3|V|5|H|7|1P|8|@]|9|@]|C|$I|J]]|$1|W|3|X|5|6|7|1Q|8|@]|9|@]|C|$]]|$1|Y|3|Z|5|6|7|1R|8|@]|9|@]|C|$]]|$1|10|3|11|5|H|7|1S|8|@]|9|@]|C|$I|J]]|$1|12|3|13|5|6|7|1T|8|@]|9|@]|C|$]]|$1|14|3|15|5|6|7|1U|8|@]|9|@]|C|$]]|$1|16|3|-4|5|6|7|1V|8|@]|9|@]|C|$]]]|17|$18|$5|19|1A|1B|C|$1C|1D]]]]

So this is long after the initial question, and technically it isn't a direct answer to how to use Ajax call to populate exterior variable as the question asks. However in research and responses it's been found to be extremely difficult to do this without disabling asynchronous functions within the call, or by descending into what seems like the potential for callback hell. My solution for this has been to use <a href="https://github.com/axios/axios" rel="nofollow noreferrer">Axios</a>. Using this has dramatically simplified my usages of asynchronous calls getting in the way of getting at data. 

For example if I were trying to access session variables in PHP, like the User ID, via a call from JS this might be a problem. Doing something like this..

<pre><code>async function getSession() {
 'use strict';
 const getSession = await axios("http:" + url + "auth/" + "getSession");
 log(getSession.data);//test
 return getSession.data;
}
</code></pre>

Which calls a PHP function that looks like this.

<pre><code>public function getSession() {
 $session = new SessionController();
 $session-&gt;Session();
 $sessionObj = new \stdClass();
 $sessionObj-&gt;user_id = $_SESSION["user_id"];
 echo json_encode($sessionObj);
}
</code></pre>

To invoke this using Axios do something like this.

<pre><code>getSession().then(function (res) {
 log(res);//test
 anyVariable = res;
 anyFunction(res);//set any variable or populate another function waiting for the data
});
</code></pre>

The result would be, in this case a Json object from PHP.

<pre><code>{"user_id":"1111111-1111-1111-1111-111111111111"}
</code></pre>

Which you can either use in a function directly in the response section of the Axios call or set a variable or invoke another function.

Proper syntax for the Axios call would actually look like this.

<pre><code>getSession().then(function (res) {
 log(res);//test
 anyVariable = res;
 anyFunction(res);//set any variable or populate another function waiting for the data
}).catch(function (error) {
 console.log(error);
});
</code></pre>

For proper error handling.

I hope this helps anyone having these issues. And yes I am aware this technically is not a direct answer to the question but given the answers supplied already I felt the need to provide this alternative solution which dramatically simplified my code on the client and server sides.

blocks|key|91789|text|我稍微改变了之前的回答，这个解决方案对我来说一直很有效。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|91790|function+searchlipcutforbrace(cs,id_pff,wt,ofl){
++++var+params+=+{
+++++++"cs"++:+cs,
+++++++"id"++:+id_pff,
+++++++"wt"++:+wt,
+++++++"ofl"++:+ofl
+++++++}
+++++++
var+response+=+$.ajax({
++++++++++++++++++++data:++params,
++++++++++++++++++++url:+++'ajax/searchlipcutforbrace.php',
++++++++++++++++++++async:+false,
++++++++++++++++++++dataType:+'json',
++++++++++++++++++++success:+function+(json)+{
++++++++++++++++++++++++response+=+json;
++++++++++++++++++++},
++++++++++++++++++++type:++'post'
++++++++++++++++});++++
++++return+response.responseJSON;
}|code-block|syntax|javascript|91791|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

I have changed previous response a little and this solution have been working for me.
<pre><code>function searchlipcutforbrace(cs,id_pff,wt,ofl){
 var params = {
 &quot;cs&quot; : cs,
 &quot;id&quot; : id_pff,
 &quot;wt&quot; : wt,
 &quot;ofl&quot; : ofl
 }
 
var response = $.ajax({
 data: params,
 url: 'ajax/searchlipcutforbrace.php',
 async: false,
 dataType: 'json',
 success: function (json) {
 response = json;
 },
 type: 'post'
 }); 
 return response.responseJSON;
}
</code></pre>

I have some problem using ajax.

How can I assign all result from ajax into outside variable ?

I google it up and found this code..

<pre><code>var return_first = (function () {
 var tmp = null;
 $.ajax({
 'async': false,
 'type': "POST",
 'global': false,
 'dataType': 'html',
 'url': "ajax.php?first",
 'data': { 'request': "", 'target': arrange_url, 'method': method_target },
 'success': function (data) {
 tmp = data;
 }
 });
 return tmp;
});
</code></pre>

but not work for me..

Can anybody tell what is wrong about that code ?

jQuery return ajax result into outside variable

服务器

我在使用ajax时遇到一些问题。如何将ajax的所有结果赋值给外部变量？我在谷歌上找到了这段代码..var return_first = (function () {    var tmp = null;    $.ajax({        'async': false,        'type': "POST",...

问jQuery将ajax结果返回到外部变量
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