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$image_url ='adress img';
 
$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, $filename );
 require_once(ABSPATH . 'wp-admin/includes/image.php');
 $attach_data = wp_generate_attachment_metadata($attach_id, $file);
 wp_update_attachment_metadata($attach_id, $attach_data);