如何在同一页面中将ajax成功结果值设置为PHP变量

Question

 function submitID(){

 // some codes working in here....

var text="A_1";                 
var name="test";

$.ajax({
    url: 'callmethod.php',
    type: 'post',
    data: {'action':'methodname', 'text': text, 'name':name},
            success: function(data, status) {
            var results = JSON.parse(data);

            for(var i = 0; i < results.length; i++){
                var id= results[i]['ID'];
                alert(id);  --- I got the value of ID in here -- example output value : Hello                                                                       
            }
        },
        error: function(xhr, desc, err) {
            console.log(xhr);
            console.log("Details: " + desc + "\nError:" + err);
        }
    });
}

What I would like to do in here, I got the value of var id but I want to set as the PHP variable $valuephp= >>> id <<< how can I do for that? please help me to advice.

Answer 1

In short, its not possible, like that to set ajax response to php variable because

PHP runs - Server Side before page load and builds the page
JS (and thus AJAX) runs - Client Side AFTER the server gave your browser the page

So what you can do ?

• You post data to your server with your ajax call, so in server side, you can set php variable.You can store this in a session variable if you need it later, or in the database.

Answer 2

You can store ajax result in php variable by embedding ajax result div into php tag.

Assign ajax response variable to js variable and then just assign it to your html div containing php variable as:

$('#result').text('test');


<?php
 $result='<div id="result"></div>';
// Here you embed div in php tag and store in php varible
?>

Answer 3

In your ajax call, after success or error

<?php   $variablephp = "<script>document.write(111)</script>"   ?> 

Now you can access that variable, make sure that variable actually used after ajax call

<?php echo $variablephp; ?>

Answer 4

不可能，但是您需要技巧，简单的技巧是用PHP标签编码JS。