使用HTTP API 要在上发送“ping”wp_insert_post 操作，在创建/更新帖子时激发：

/**
 * @param   int     $post_id    The ID of the post.
 * @param   WP_Post $post       The post object.
 * @param   bool    $update     True if the post already exists and is being updated
 */
function wpse_185340_post_ping( $post_id, $post, $update ) {
    if ( $post->post_status === \'publish\' ) { // Only fire when published
        wp_remote_post(
            \'http://example.com/application/notify\',
            array(
                // https://codex.wordpress.org/HTTP_API
                \'blocking\' => false, // If you don\'t need to know the response, disable blocking for an "async" request
                \'body\' => array(
                    \'post_id\' => $post_id,
                    \'post\'    => json_encode( $post ),
                    \'update\'  => ( int ) $update,
                    // or whatever
                )
            )
        );
    }   
}

add_action( \'wp_insert_post\', \'wpse_185340_post_ping\', 10, 3 );

使用HTTP API 要在上发送“ping”wp_insert_post 操作，在创建/更新帖子时激发：

/**
 * @param   int     $post_id    The ID of the post.
 * @param   WP_Post $post       The post object.
 * @param   bool    $update     True if the post already exists and is being updated
 */
function wpse_185340_post_ping( $post_id, $post, $update ) {
    if ( $post->post_status === \'publish\' ) { // Only fire when published
        wp_remote_post(
            \'http://example.com/application/notify\',
            array(
                // https://codex.wordpress.org/HTTP_API
                \'blocking\' => false, // If you don\'t need to know the response, disable blocking for an "async" request
                \'body\' => array(
                    \'post_id\' => $post_id,
                    \'post\'    => json_encode( $post ),
                    \'update\'  => ( int ) $update,
                    // or whatever
                )
            )
        );
    }   
}

add_action( \'wp_insert_post\', \'wpse_185340_post_ping\', 10, 3 );