AJAX $ _POST无法正常工作[关闭]

Question

So I want to pass a value between javascript file and php file when I click a button. But when I click the button, I dont see the echo, does anyone see the problem? Here are 2 snippets of my code:

test.php:

<script type="text/javascript" src="/functions/js/test.js"></script>

<button type="button" class="btn btn-success" onclick=" myAjax();">Test</button>

<?php


if($_POST['action'] == 'go') 
    {
    echo "worked";
    }
?>

and test.js

function myAjax() {


  $.ajax({
       type: "POST",
       url: 'test.php',
       data:{action:'go'},
       success:function() {

       }

  });
}

Answer 1

First at all you need to include jQuery library

Second, load your path to file test.js

you should use a class and no call the function myAjax().

Use a class in button such as: Test

Well, in your test.js file use this:

$(document).on('click', '.Test', function(e) {
  $.ajax({
    type: "POST",
    url: 'test.php',
    data:{action:'go'},
    success:function(data) {
     console.log('worked');
    }
  });
});

ot if just only need send one parameter, use this code, it's easier:

$(document).on('click', '.Test', function(e){
  var vars = 'go';
  var params='go='+vars;

  location.href = 'test.php'+params;
});

then in your php file you can use $_POSt or $_REQUEST to get vars

<?php
  if($_POST['action'] == 'go') 
  {
   echo "worked";
  }
?>

Have a nice day