WordPress 下載檔案存回媒體庫的方法

wp_download_img_to_media_and_bind_post.php

<?php
$link          = '下載連結';
$file_name     = '檔案名稱';
$upload_file   = array();
$options       = array('timeout' => 300);
$response      = wp_safe_remote_get($link, $options);
$data          = wp_remote_retrieve_body($response);
$upload_file[] = wp_upload_bits($file_name, null, $data);
$pid           = '該篇文章ID';
for ($i = 0; $i < count($upload_file); ++$i) {
    if (!$upload_file[$i]['error']) {
        $wp_filetype = 'image/jpeg' //or image/png //wp_check_filetype($filename[$i], null);
        $attachment  = array(
            'post_mime_type' => $wp_filetype,
            'post_parent'    => $pid,
            'post_author'    => '作者ID',
            'post_title'     => '',
            'post_content'   => '',
            'post_status'    => 'inherit',
        );
        $attachment_id = wp_insert_attachment($attachment, $upload_file[$i]['file'], $pid);
        if (!is_wp_error($attachment_id)) {
            //產生附加檔案中繼資料
            $attachment_data = wp_generate_attachment_metadata($attachment_id, $upload_file[$i]['file']);
            wp_update_attachment_metadata($attachment_id, $attachment_data);
        }
    }
}