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wordpress远程图片自动本地化不用插件实现的代码。
使用方法:将代码写入主题的functions.php文件即可。
代码如下：
/****自动下载站外图片******/
//多级目录创建
function mkdirs($dir){
if(!is_dir($dir)){
if(!$this->mkdirs(dirname($dir))){
return false;
}
if(!mkdir($dir,0777, true)){
return false;
}
}
return true;
}
function save_post_fix($content){
$post_id = get_the_ID();
$upload_dir = wp_upload_dir();
$path = $upload_dir["url"];
$realPath = $upload_dir["path"];
if(!is_dir($realPath)){
mkdirs($realPath);
}
$pagelink=array();
$pattern_page = '//i';
preg_match_all($pattern_page, $content, $pagelink[]);
foreach ($pagelink[0][2] as $key => $value) {
$pic_url = $value;
$url_feter = parse_url($pic_url);
if(stripos($url_feter["host"],"zhnytech.com")){
continue;
}else{
$ch = curl_init(); // 启动一个CURL会话
curl_setopt($ch,CURLOPT_HEADER,1); //不示返回的Header区域内容
curl_setopt($ch, CURLOPT_NOBODY, TRUE);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
curl_setopt($ch,CURLOPT_URL,$pic_url);
$hd = curl_exec($ch);
if(!empty($hd) && !(strpos($hd,'Content-Length: image/png')||strpos($hd,'Content-Length: image/jpg'))){
$fp =file_get_contents($pic_url);
$pic_name =basename($url_feter["path"]);
$savePath = $realPath.'/'.$pic_name;
$fullPath = $path.'/'.$pic_name;
if(file_exists($savePath)){
$savePath = $realPath.'/'.str_replace('.','-'.date("s").'.' ,$pic_name);
$fullPath = $path.'/'.str_replace('.','-'.date("s").'.' ,$pic_name);
}
if(file_put_contents($savePath,$fp)){
$content = str_replace($pic_url, $fullPath, $content);
//插数据库生成预览图
$wp_filetype = wp_check_filetype(basename($savePath), null );
$wp_upload_dir = wp_upload_dir();
$attachment = array(
'guid' => $wp_upload_dir['url'] . '/' . basename( $savePath ),
'post_mime_type' => $wp_filetype['type'],
'post_title' => preg_replace( '/\.[^.]+$/', '', basename( $savePath ) ),
'post_content' => '',
'post_status' => 'inherit'
);
$attach_id = wp_insert_attachment( $attachment, $savePath, $post_id );
require_once( ABSPATH . 'wp-admin/includes/image.php' );
$attach_data = wp_generate_attachment_metadata( $attach_id, $savePath );
wp_update_attachment_metadata( $attach_id, $attach_data );
}
}
}
}
return $content;
}
add_filter( 'content_save_pre', 'save_post_fix', 90, 1 );
/*****自动下载站外图片结束****/
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无插件wordpress远程图片本地化
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