Question

我一直在制作一个wordpress插件，它可以获得单独的Instagram照片，然后将它们放入短代码中。但是，短代码显示的图像不是保存在WP图像文件夹中，而是直接来自instagram。它使服务器加载时间大幅增加。

所以我搜索了WP dev论坛，发现这个函数设置了指定帖子的特色图片。

function Generate_Featured_Image( $image_url, $post_id  ){
    $upload_dir = wp_upload_dir();
    $image_data = file_get_contents($image_url);
    $filename = basename($image_url);
    if(wp_mkdir_p($upload_dir['path']))     $file = $upload_dir['path'] . '/' . $filename;
    else                                    $file = $upload_dir['basedir'] . '/' . $filename;
    file_put_contents($file, $image_data);

    $wp_filetype = wp_check_filetype($filename, null );
    $attachment = array(
        'post_mime_type' => $wp_filetype['type'],
        'post_title' => sanitize_file_name($filename),
        'post_content' => '',
        'post_status' => 'inherit'
    );
    $attach_id = wp_insert_attachment( $attachment, $file, $post_id );
    require_once(ABSPATH . 'wp-admin/includes/image.php');
    $attach_data = wp_generate_attachment_metadata( $attach_id, $file );
    $res1= wp_update_attachment_metadata( $attach_id, $attach_data );
    $res2= set_post_thumbnail( $post_id, $attach_id );
}

我缺少的是我拍摄的照片很快就会更新，之后特色图片不会改变。一旦新的Instagram照片上传，有没有办法更新特色图片？或者只是每个小时左右。非常感谢，伙计们！

Answer 1

尝试这个

if( !function_exists( 'Generate_Featured_Image' ) ){
    function Generate_Featured_Image($image, $post_id, $setthumb='false', $post_meta = '') {
        // check to make sure its a successful upload
        if ($_FILES[$image]['error'] !== UPLOAD_ERR_OK) __return_false();

        require_once(ABSPATH . "wp-admin" . '/includes/image.php');
        require_once(ABSPATH . "wp-admin" . '/includes/file.php');
        require_once(ABSPATH . "wp-admin" . '/includes/media.php');

        $attach_id = media_handle_upload( $image, $post_id );

        if ($setthumb) update_post_meta($post_id,'_thumbnail_id',$attach_id);
        if(!$setthumb && $post_meta!=''){
            update_post_meta($post_id, $post_meta, array( $attach_id ));
        }
        return $attach_id;
    }   
}

未经测试，但您可以查看一下您可以制作file_get_contents等其他代码。

$ image_url更改

1 个答案: