我意识到基本上有人发表了我的评论，并补充了我的回答。这是一个使用内置REST API 多样性。在经过身份验证的请求上查找停靠点有点棘手，但这应该是一个偶然的机会。

// send authorization info
beforeSend: function(xhr) {

    // attach REST nonce for logged in user requests -- otherwise will end up no-priv
    xhr.setRequestHeader (\'X-WP-Nonce\', \'<?php echo wp_create_nonce( \'wp_rest\' ); ?>\');
},

在几次外部单击之后，您可以检查用户的元数据，并查看所有单击和计数。

<?php

add_action( \'rest_api_init\', function() {

    // namespace of url
    $namespace = \'v2\';

    // route
    $base = \'/link/count/\';

    // register request
    register_rest_route( $namespace, $base, array (

            // hide from discovery
            \'show_in_index\' => false,

            // only accept POST methods
            \'methods\'       => \'POST\',

            // handler
            \'callback\'      => \'add_link_count\',

            // validate args
            \'args\' => array(
                \'link\' => array(
                    \'validate_callback\' => function($param, $request, $key) {
                        return ! empty( $param );
                    }
                ),
            ),

            // check for logged in users
            \'permission_callback\' => function () {
               return is_user_logged_in();
            }
    ) );
} );

// only add late in the footer
add_action( \'wp_footer\', function() {

    // only add for logged in users
    if ( ! get_current_user_id() ) {
        return;
    }
    ?>
    <script>
        (function($) {

            // only search for links with data
            $ (\'a[href^="http"], a[href^="//"]\').each (function() {

                // excluded specific domains
                var excludes = [
                    \'example.com\'
                ];
                for (i = 0; i < excludes.length; i++) {
                    if (this.href.indexOf (excludes[i]) != -1) {
                        return true; // continue each() with next link
                    }
                }

                // filter by domain -- only track external links
                if (this.href.indexOf (location.hostname) == -1) {

                    // attach click event
                    $ (this).click (function(e) {

                        // do ajax call
                        $.ajax ({

                            // send request to REST URL
                            url: \'<?php echo esc_js( get_rest_url( null, \'/v2/link/count/\' ) ); ?>\',

                            // use the accepted method - POST
                            method: \'POST\',

                            // send authorization info
                            beforeSend: function(xhr) {

                                // attach REST nonce for logged in user requests -- otherwise will end up no-priv
                                xhr.setRequestHeader (\'X-WP-Nonce\', \'<?php echo wp_create_nonce( \'wp_rest\' ); ?>\');
                            },
                            data: {
                                // link to track click count
                                \'link\': this.href
                            }
                        }).done (function(response) {
                            // show response in the console
                            // console.log (response);
                        });

                        // block click -- for testing
                        // e.preventDefault();
                    });
                }
            })
        } (jQuery));

    </script>
    <?php
}, 30 );

// handle the REST url
function add_link_count( $request ) {

    // get the current user
    $user_id = get_current_user_id();

    // check for valid user id > 0
    if ( ! $user_id || $user_id < 1 ) {
        return new WP_REST_Response( \'Unauthorized\', 403 );
    }

    // get the link to log
    $link = $request->get_param( \'link\' );

    // validate the request
    if( empty($link)) return new WP_REST_Response( \'Bad Request\', 400 );

    // pull the previous click data
    $prev = get_user_meta($user_id, \'link_clicks\', true);

    // generate if it doesn\'t already exist
    if( ! $prev || ! is_array($prev)) $prev = array();

    // make sure the value is numeric
    if( ! is_numeric($prev[$link]) ){
        $prev[$link] = 0;
    }

    // increment based on the click
    $prev[$link]++;

    // update the users metadata
    update_user_meta( $user_id, \'link_clicks\', $prev, null );

    // return success response
    return new WP_REST_Response( \'OK\', 200 );
}

function get_clicks_by_user() {
    $args  = array (
        \'meta_query\' => array (
            array (
                \'key\'     => \'link_clicks\',
                \'compare\' => \'EXISTS\',
            ),
        ),
    );
    $user_query = new WP_User_Query( $args );
    $users = $user_query->get_results();
    $clicks_by_user = array ();
    foreach ( $users as $user ) {
        $clicks_by_user[ $user->data->user_login ] = get_user_meta( $user->ID, \'link_clicks\', true );
    }

    return $clicks_by_user;
}

echo "<pre>";
print_r(  get_clicks_by_user() );

function user_tracking_script() {
?><script>jQuery(function(){
  jQuery(\'a\').on(\'click\', function(){
    var a = jQuery(this)[0];
    if (a.hostname === window.location.hostname) {return true;}
    window.wp.ajax.send(\'tracking-click\', {url: a.hostname})
    return true;
  })
})</script><?php
}