如果您必须在内容之前/之后添加我们的消息，那么您必须使用“the\\u content”过滤器。如果您将消息放在一个短代码或挂钩中，这样主题定制就会更加集成，这会更好。但基本上，在运行逻辑以获取状态之后，只需等待消息显示出来。

add_action(\'init\',\'wxy_listener\');

function wxy_before_the_content ( $content ) {
    $status = get_subsc_status_message();
    if(!empty($status)){
        $custom_content = \'<div class="my-plugin-message">\'.$status.\'</div>\';
    } else return $content; // no status info
    $custom_content .= $content;
    return $custom_content;
}

function wxy_after_the_content ( $content ) {
    $custom_content = \'AFTER CONTENT GOES HERE\';
    $content .= $custom_content;
    return $content;
}

function get_subsc_status_message()
{
    global $subsc_status;
    if ( empty( $subsc_status) ) return \'\';

    $messages = array (
        \'ACTIVE\'    => __(\'Your stuff is active.\', \'text_domain\'),
        \'PENDING\'   => __(\'Your stuff is pending.\', \'text_domain\'),
        \'CANCELLED\' => __(\'Your stuff is cancelled.\', \'text_domain\'),
    );

    if ( isset( $messages[ $subsc_status ] ) {
        return $messages[ $subsc_status ];
    }

    return \'\';
}

function wxy_listener(){

    if( !isset( $_GET[\'code\'] ) ){ 
return; // nobody is listening
    }

    if( !isset( $_GET[\'returnfrom\'] ) || \'ps\' != $_GET[\'returnfrom\'] ){ 
return; // nobody is listening
    }

    $code = $_GET[\'code\'];

    global $wxy_options;
    $psToken = ...;
    $psEmail = ...;
    $psSandbox = ...;

    // URL for the first HTTP POST request
    $psUrl = ...;

    // If Sandbox is on, we should set  different URL...
    if ($psSandbox === "1") {
        $psToken = ...;
        $psEmail = ...;
        $psUrl = ...;
    }

    $user_info = wp_get_current_user();
    $user_email = $user_info->user_email;

    $response = wp_remote_retrieve_body( wp_remote_get( $psUrl ) );
    if( is_wp_error( $response ) ) {
        // There was an error
        $error_message = $response->get_error_message();
        wxyLog($error_message);
return; // nobody is listening
    }

    $resp_xml = simplexml_load_string($response);
    if ($resp_xml === false) {
        wxyLog(\'Failed loading RESP_XML\');  
return; // nobody is listening 
    } 

    // store the response for later
    global $subsc_status;
    $subsc_status = $resp_xml->status; 

    // add hooks to the content
    add_filter( \'the_content\', \'wxy_before_the_content\', 0 );
    add_filter( \'the_content\', \'wxy_after_the_content\', 99 );
}