问在Wordpress XMLRPC中将图像附加到post

EN

include_once( ABSPATH . WPINC . '/class-IXR.php' );
include_once( ABSPATH . WPINC . '/class-wp-http-ixr-client.php' );

    $usr = 'username_on_the_server_side';
    $pwd = 'password_on_the_server_side';
    $xmlrpc = 'server side xmlrpc.php url';
    $client = new IXR_Client($xmlrpc);

    ////////////  IMAGE UPLOAD AND ATTACHMENT POST CREATION  ///////////
       $img_attach = 'link to the image';
       $img_attach_content = array(
                'name' => basename($img_attach),
                'type' => mime_content_type($img_attach),
                'bits' => new IXR_Base64(file_get_contents($img_attach)),
                        );
        $status = $client->query( 'wp.uploadFile','1',  $usr, $pwd, $img_attach_content );
        $image_returnInfo = $client ->getResponse();

   ////////////  POST CREATION  ///////////

        $custom_fields = array( 
                          array( 'key' => 'blabla1', 'value' => 'blabla1_value' ),
                          array( 'key' => 'blabla12', 'value' => 'blabla1_value2')
                          ); 
        $post_content = array(
            'post_type' => 'post',
            'post_status' => 'draft', //for now
            'post_title' => 'XMLRPC Test',
            'post_author' => 3,
            'post_name' => 'XMLRPC Test',
            'post_content' => 'XMLRPC Test Content',
            'custom_fields' => $custom_fields
        );

    $res = $client -> query('wp.newPost',1, $usr, $pwd, $post_content);
    $postID =  $client->getResponse();
    if(!$res)
        echo 'Something went wrong....';
    else {
            echo 'The Project Created Successfully('.$res.')<br>Post ID is '.$postID.'<br>';
    }

   ////////////  Image Post Attachment Edit  ///////////
      $img_attach_content2 = array(
                'post_type'  => 'attachment',   
                'post_status' => 'inherit', 
                'post_title' => $postID, 
                'post_name' => $postID, 
                'post_parent'  => $postID,
                'guid'    => $image_returnInfo['url'],
                'post_content'   => '',
                'post_mime_type' => 'image/jpg'
                 );

     $res2 = $client -> query('wp.editPost', 0, $usr, $pwd,      $image_returnInfo['id'], $img_attach_content2);

    $postIDimg =  $client->getResponse();    

    ////////////   POST EDIT  ///////////

      $post_content2 = array(
                 'post_status' => 'publish', //publish
                'wp_post_thumbnail' => $image_returnInfo['id'],
                'custom_fields' =>    array( 'key' => '_thumbnail_id', 'value' =>  $image_returnInfo['id'] ) 
            );
            $media2= $client->query('wp.editPost',0, $usr, $pwd, $postID, $post_content2);