我见过一些类似的问题，但我找不到解决问题的方法。

<?php
add_action(\'wp_ajax_nopriv_LogHit_callback\', \'LogHit_callback\');
add_action(\'wp_ajax_LogHit_callback\', \'LogHit_callback\');
function HitCount() {
  ?>
  <script type="text/javascript" >
  jQuery(document).ready(function($) {
    var data = {
        action: \'LogHit_callback\',
        PostId:\'<?php echo get_the_ID() ?>\'
    };

    jQuery.post(\'http://www.test.com/wp-admin/admin-ajax.php\', data);
 });
 </script>
<?php

function LogHit_callback() {
  global $wpdb; // this is how you get access to the database

  $postId = $_POST[\'PostId\'];
  $hits = get_post_meta((int)$postId, \'hit-counter\', true);
  $hits = $hits + 1;
  update_post_meta((int)$postId, \'hit-counter\', (int)$hits);
  exit; // this is required to return a proper result
}

当我在页面中调用HitCount函数时，它会呈现以下内容

<script type="text/javascript" >
 jQuery(document).ready(function($) {
var data = {
    action: \'LogHit_callback\',
    PostId:\'86476\'
};
jQuery.post(\'http://www.test.com/wp-admin/admin-ajax.php\', data);
  });
</script>

指向管理ajax的直接链接。php文件在浏览器中工作，但从未调用回调函数？

wp_enqueue_script(
    \'my-ajax-request\',
    plugin_dir_url( __FILE__ ) . \'js/your_script.js\',
    array( \'jquery\' )
);

wp_localize_script(
    \'my-ajax-request\',
    \'MyAjax\',
    array( \'ajaxurl\' => admin_url( \'admin-ajax.php\' ) )
);

jQuery.post(MyAjax.ajaxurl, data, function(response) {