wordpress如何在后台编辑器发布文章时自动将外链图片转内链本地图片地址-www.88531.cn资享网

有时候我们复制粘贴别人的文章时，图片地址是别人的链接，万一哪天别人的网站挂了，图片就显示不了了，这样很没有安全感，那么怎么自动将别人的图片直接上传到自己网站服务器呢？

将以下代码加入到主题functions.php里：

function ecp_save_post($post_id, $post) {  global $wpdb;  if($post->post_status == 'publish') {  $p = '/<img.*[s]src=["|'](.*)["|'].*>/iU';  $num = preg_match_all($p, $post->post_content, $matches);  if ($num) {  $wp_upload_dir = wp_upload_dir();  set_time_limit(0);  $ch = curl_init();  curl_setopt($ch, CURLOPT_HEADER, false);  curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);  curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);  curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);  curl_setopt($ch, CURLOPT_MAXREDIRS,20);  curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 30);    $ecp_options = $_SERVER['HTTP_HOST'];  foreach ($matches[1] as $src) {  if (isset($src) && strpos($src, $ecp_options) === false) {  $file_info = wp_check_filetype(basename($src), null);  if ($file_info['ext'] == false) {  date_default_timezone_set('PRC');  $file_name = date('YmdHis-').dechex(mt_rand(100000, 999999)).'.tmp';  } else {  $file_name = dechex(mt_rand(100000, 999999)) . '-' . basename($src);  }  curl_setopt($ch, CURLOPT_URL, $src);  $file_path = $wp_upload_dir['path'] . '/' . $file_name;  $img = fopen($file_path, 'wb');  curl_setopt($ch, CURLOPT_FILE, $img);  $img_data = curl_exec($ch);  fclose($img);    if (file_exists($file_path) && filesize($file_path) > 0) {  $t = curl_getinfo($ch, CURLINFO_CONTENT_TYPE);  $arr = explode('/', $t);  if (pathinfo($file_path, PATHINFO_EXTENSION) == 'tmp') {  $file_path = ecp_handle_ext($file_path, $arr[1], $wp_upload_dir['path'], $file_name, 'tmp');  } elseif (pathinfo($file_path, PATHINFO_EXTENSION) == 'webp') {  $file_path = ecp_handle_ext($file_path, $arr[1], $wp_upload_dir['path'], $file_name, 'webp');  }  $post->post_content = str_replace($src, $wp_upload_dir['url'] . '/' . basename($file_path), $post->post_content);  $attachment = ecp_get_attachment_post(basename($file_path), $wp_upload_dir['url'] . '/' . basename($file_path));  $attach_id = wp_insert_attachment($attachment, ltrim($wp_upload_dir['subdir'] . '/' . basename($file_path), '/'), 0);  $attach_data = wp_generate_attachment_metadata($attach_id, $file_path);  $ss = wp_update_attachment_metadata($attach_id, $attach_data);  }  }  }  curl_close($ch);  $wpdb->update( $wpdb->posts, array('post_content' => $post->post_content), array('ID' => $post->ID));  }  }  }    function ecp_handle_ext($file, $type, $file_dir, $file_name, $ext) {  switch ($ext) {  case 'tmp':  if (rename($file, str_replace('tmp', $type, $file))) {  if ('webp' == $type) {  return ecp_image_convert('webp', 'jpeg', $file_dir . '/' . str_replace('tmp', $type, $file_name));  }  return $file_dir . '/' . str_replace('tmp', $type, $file_name);  }  case 'webp':  if ('webp' == $type) {  return ecp_image_convert('webp', 'jpeg', $file);  } else {  if (rename($file, str_replace('webp', $type, $file))) {  return $file_dir . '/' . str_replace('webp', $type, $file_name);  }  }  default:  return $file;  }  }    function ecp_image_convert($from='webp', $to='jpeg', $image) {  $im = imagecreatefromwebp($image);  if (imagejpeg($im, str_replace('webp', 'jpeg', $image), 100)) {  try {  unlink($image);  } catch (Exception $e) {  $error_msg = sprintf('Error removing local file %s: %s', $image,  $e->getMessage());  error_log($error_msg);  }  }  imagedestroy($im);    return str_replace('webp', 'jpeg', $image);  }    function ecp_get_attachment_post($filename, $url) {  $file_info = wp_check_filetype($filename, null);  return array(  'guid' => $url,  'post_type' => 'attachement',  'post_mime_type' => $file_info['type'],  'post_title' => preg_replace('/.[^.]+$/', '', $filename),  'post_content' => '',  'post_status' => 'inherit'  );  }  add_action('save_post', 'ecp_save_post', 120, 2);

然后你更新文章时，点了发布按钮就会自动上传外链图片（如果外链图片有权限限制，那就没法上传成功哦~）。

来源地址：wordpress如何在后台编辑器发布文章时自动将外链图片转内链本地图片地址

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