Gelen resim linki: http://www.kendisitem.com/wp-content/uploads/abc.jpg
update_post_meta($var_dump, 'thumbnail', $resim);
Yukarıdakini denedim olmadı.
//Attachment Başla
$filename=$resim;
$wp_filetype = wp_check_filetype(basename($filename), null );
$wp_upload_dir = wp_upload_dir();
$attachment = array(
'guid' => $wp_upload_dir['baseurl'] . _wp_relative_upload_path( $filename ),
'post_mime_type' => $wp_filetype['type'],
'post_title' => preg_replace('/\.[^.]+$/', '', basename($filename)),
'post_content' => '',
'post_status' => 'inherit'
);
$attach_id = wp_insert_attachment( $attachment, $filename, $var_dump );
// you must first include the image.php file
// for the function wp_generate_attachment_metadata() to work
require_once(ABSPATH . 'wp-admin/includes/image.php');
$attach_data = wp_generate_attachment_metadata( $attach_id, $filename );
wp_update_attachment_metadata( $attach_id, $attach_data );
//Attachment tamamlandıBundaki gibi attach ettim resimi yine olmadı.Ne yapmalıyım?