如何使用jquery ajax将POST数据发送到PHP函数

Question

I want to send POST request with jquery AJAX to PHP function but it don't give any respond.

JQuery

$.ajax({
    url: 'ListProduk.php/SelectData',
    type: 'POST',
    success: function(data)
    {
      console.log(data);
    }
  });

PHP

<?php
include 'database.php';

function SelectData(){
  $sql = "SELECT * FROM MsProduk";

  $result = $conn->query($sql);
  while($row = $result->fetch_assoc()){
    $arr[] = $row;
  }
  return json_encode($arr);
}
?>

Any ideas how to fix it?

Answer 1

When not using url rewriting (google mod_rewrite and pretty URL's), your parameters typically are going to be passed as a normal HTTP GET request. Here is an example of how your URL structure might look:

url: 'ListProduk.php?action=SelectData'

And then, in your PHP, you might handle it based on the action that is requested (Note: The action parameter is not something specific to web development, it's just an arbitrary name I assigned. It could be foo=SelectData as well)

if ($_POST['action'] == 'SelectData') {
   // Run the code for selecting data
}

Finally, you wouldn't want to "return" the JSON data. You need to output it with the correct headers. It would look something like this:

header('Content-Type: application/json');
echo json_encode($data);