直接从 URL 将图像复制到我的服务器并将其上传到 Wordpress 上传文件夹？

Question

我正在尝试通过 PHP 脚本上传图像，如下所述。我正在从 URL 中获取图像； I have taken reference from this post 实际上，在我的情况下，我想将它上传到 WordPress 上传文件夹，在该文件夹中上传发布图片，并且您知道 WordPress 在运行时在“wp-content/uploads/”内创建文件夹并在那里上传图片。所以路径 ($save_path) 不是在运行时决定的。

$url="http://www.google.co.in/intl/en_com/images/srpr/logo1w.png";
$contents=file_get_contents($url);
$save_path="/path/to/the/dir/and/image.jpg";
file_put_contents($save_path,$contents);

我正在尝试使用 WordPress 函数“media_handle_upload”而不是“file_put_contents”来上传图像，但是一旦我获得文件内容 ($contents=file_get_contents($url);)，我就不知道如何将文件对象传递给该函数。请协助。

$attachment_id = media_handle_upload( 'my_image_upload', $_POST['post_id'] );

Answer 1

100% 使用此代码：

include_once( ABSPATH . 'wp-admin/includes/image.php' );
$imageurl = '<IMAGE URL>';
$imagetype = end(explode('/', getimagesize($imageurl)['mime']));
$uniq_name = date('dmY').''.(int) microtime(true); 
$filename = $uniq_name.'.'.$imagetype;

$uploaddir = wp_upload_dir();
$uploadfile = $uploaddir['path'] . '/' . $filename;
$contents= file_get_contents($imageurl);
$savefile = fopen($uploadfile, 'w');
fwrite($savefile, $contents);
fclose($savefile);

$wp_filetype = wp_check_filetype(basename($filename), null );
$attachment = array(
    'post_mime_type' => $wp_filetype['type'],
    'post_title' => $filename,
    'post_content' => '',
    'post_status' => 'inherit'
);

$attach_id = wp_insert_attachment( $attachment, $uploadfile );
$imagenew = get_post( $attach_id );
$fullsizepath = get_attached_file( $imagenew->ID );
$attach_data = wp_generate_attachment_metadata( $attach_id, $fullsizepath );
wp_update_attachment_metadata( $attach_id, $attach_data ); 

echo $attach_id;

Answer 2

这里是完整的例子：

// $filename should be the path to a file in the upload directory.
$filename = '/path/to/uploads/2013/03/filename.jpg';

// The ID of the post this attachment is for.
$parent_post_id = 37;

// Check the type of file. We'll use this as the 'post_mime_type'.
$filetype = wp_check_filetype( basename( $filename ), null );

// Get the path to the upload directory.
$wp_upload_dir = wp_upload_dir();

// Prepare an array of post data for the attachment.
$attachment = array(
    'guid'           => $wp_upload_dir['url'] . '/' . basename( $filename ), 
    'post_mime_type' => $filetype['type'],
    'post_title'     => preg_replace( '/\.[^.]+$/', '', basename( $filename ) ),
    'post_content'   => '',
    'post_status'    => 'inherit'
);

// Insert the attachment.
$attach_id = wp_insert_attachment( $attachment, $filename, $parent_post_id );

// Make sure that this file is included, as wp_generate_attachment_metadata() depends on it.
require_once( ABSPATH . 'wp-admin/includes/image.php' );

// Generate the metadata for the attachment, and update the database record.
$attach_data = wp_generate_attachment_metadata( $attach_id, $filename );
wp_update_attachment_metadata( $attach_id, $attach_data );

set_post_thumbnail( $parent_post_id, $attach_id );

您可以查看wp_insert_attachment()了解更多信息