将javascript值传递给php变量

Question

将以下输出值转换为php变量的最佳方法是什么？

$(document).getUrlParam("id");

Answer 1

Through an ajax post.

$.ajax({
 type: 'POST',
 url: url,
 data: data,
 success: success,
 dataType: dataType
});

Answer 2

You should use JSON format to send and receive data from javascript to PHP. For example

 function sendData(){

  //with jquery, you can use `.post()`, `.get()` or for more control `.ajax()`
  $.post(
      //URL to send the data
       url,
      //data being sent, transformed to JSON
      {dataSent: JSON.stringify(clientSideData)},
      //Do something after sendind the data to server
      function(dataReceived){
         //transform data from json format to javascript object
         var dataLog = jQuery.parseJSON(dataReceived);

         //Do stuff

      }
   )
  }

PHP:

 //Receive data from POST
 var phpVar = json_decode($_POST['dataSent'])

 //send data back to javascript
 echo json_encode(phpVar)

Answer 3

While all of these answers will get the value from javascript into the PHP script, I'd wonder if you need javascript at all.

From what I can see from a brief google the getUrlParam plugin is useful for getting and then breaking down the URL. Have you had a look at the variables available through $_SERVER ? I'm sure you'd be able to find something suitable in there.