WordPressPluginAJAX.php

<?php

/*
Plugin Name: Clock Spring
Plugin URI: 
Description: 
Author:
Version: 1.0
Author URI:
*/


add_action('admin_menu', 'clockspring_functions_menu');

function clockspring_functions_menu(){

    // add_menu_page( $page_title, $menu_title, $capability, $menu_slug, $function, $icon_url, $position );
    $parent_page_title = 'Clock Spring Buttons Page';
    $parent_menu_title = 'Clock Spring Buttons';
    $parent_capability = 'manage_options';
    $parent_menu_slug = 'cs';
    $parent_function = 'cs_admin_page';
    add_menu_page($parent_page_title,$parent_menu_title,$parent_capability,$parent_menu_slug,$parent_function);

    $submenu_page_title = "CS Submenu Page Title";
    $submenu_menu_title = "CS Submenu Title";
    $submenu_capability = 'manage_options';
    $submenu_slug = 'cs_sub_menu';
    $submenu_function = 'cs_admin_submenu_page';

    // add_submenu_page ( string $parent_slug, string $page_title, string $menu_title, string $capability, string $menu_slug, callable $function = '' )
    add_submenu_page( 
        $parent_menu_slug, 
        $submenu_page_title, 
        $submenu_menu_title, 
        $submenu_capability, 
        $submenu_slug,
        $submenu_function
    );
}

function cs_admin_submenu_page() {
  if (!current_user_can('manage_options'))  { wp_die( __('You do not have sufficient pilchards to access this page.')    ); } ?>
  <div class="wrap">
    <h2>Submenu Page</h2>
    <?php if (isset($_POST['test_button']) && check_admin_referer('test_button_clicked')) button_clicked_function(); ?>
    <form action="admin.php?page=cs_sub_menu" method="post">
      <?php wp_nonce_field('test_button_clicked'); ?>
      <input type="hidden" value="true" name="test_button" />
      <?php submit_button('Call Function'); ?>
    </form>
  </div>
<?php  


$users = get_general_users();
print_r($users);
echo explode("</li><li>", $users);

?>


<?php 
}


function get_general_users(){
  // WP_User_Query arguments
  $args = array (
    'orderby'        => 'id',
  );

  // The User Query
  $user_query = new WP_User_Query( $args );
  $ret = array();

  // The User Loop
  if ( ! empty( $user_query->results ) ) {
    foreach ( $user_query->results as $user ) {
      // echo "<pre>" . print_r($user) . "</pre>";
      array_push($ret, $user);
      $nice_name = $user->user_nicename;
      // echo "<br>" . $nice_name;
    }
  } else {
    // no users found
  }
  return $ret;
}





// Parent Menu
function cs_admin_page() {

  // This function creates the output for the admin page.
  // It also checks the value of the $_POST variable to see whether
  // there has been a form submission. 

  // The check_admin_referer is a WordPress function that does some security
  // checking and is recommended good practice.

  if (!current_user_can('manage_options'))  { wp_die( __('You do not have sufficient pilchards to access this page.')    ); } ?>
  <div class="wrap">
    <h2>Main Menu Page</h2>
    <?php if (isset($_POST['test_button']) && check_admin_referer('test_button_clicked')) button_clicked_function(); ?>
    <form action="admin.php?page=cs" method="post">
      <?php wp_nonce_field('test_button_clicked'); ?>
      <input type="hidden" value="true" name="test_button" />
      <?php submit_button('Call Function'); ?>
    </form>
  </div>
<?php 
}



function button_clicked_function()
{
  echo '<div id="message" class="updated fade"><p>'
    .'Success. ' . '</p></div>';

  $pluginPath = WP_PLUGIN_DIR . '/clockspring/';
  $folderName = 'exports/' . date('m-d-Y') . '/';
  $filename = "Export-". date('m-d-Y_h:i:s').".txt"; 

  $exportThis = $pluginPath . $folderName;
  
  // create if doesnt exist
  if (!file_exists($exportThis)) {
      mkdir($exportThis, 0777, true);
  }  



  // append filename
  $exportThis .= $filename;
  $handle = fopen($exportThis,"w");
  if ($handle == false) {
    echo '<p>Could not write the log file to the temporary directory: ' . $exportThis . '</p>';
  }
  else {
    echo '<p>Log of button click written to: ' . $exportThis . '</p>';
    fwrite ($handle , "Call Function button clicked on: " . date("m-d-Y_h:i:s", time())); 
    fclose ($handle);
  }
}  
?>