PHP 文章中的远程图片采集到本地的代码

　　第一步. 先从文章中把所有<img ...> 用正则 抠出来.
复制代码 代码如下:
$message //文章内容
//正则(这个还不是)
$reg = /<img[^>]*src=\(http:\/\/(.+)\/(.+)\.(jpggifbmpbnp))\/isU;
//把抠出来的 img 地址存放到 $img_array 变量中
preg_match_all($reg, $message, $img_array, PREG_PATTERN_ORDER);
//过滤重复的图片
$img_array = array_unique($img_array[1]);

第二步. 把$img_array 数组循环一下. 做图片保存和文章位置替换
复制代码 代码如下:
foreach ($img_array as $img){
//判断是否是自己网站上的 图片
//读取图片文件
$Gimg = new GetImage();
$Gimg->source = $img;
$Gimg->save_to = ./data/temp/;
$FILE = $Gimg->download(); //图片移动到本地
//保存到相册 得到图片保存的位置
$img_path = pic_save($FILE,0,);
//文本路径替换
$message = str_replace($img, $img_path, $message);
}
}

....这时候 $message 里面已经图片已经替换为自己服务器本地的地址,并且图片也保存到自己的服务器上.
复制代码 代码如下:
//下面一个函数 和 类是从网络上找的.
//从url中获得域名
function get_domain($url){
$pattern = /[\w-]+\.(comnetorggovccbizinfocn)(\.(cnhk))*/;
preg_match($pattern, $url, $matches);
if(count($matches) > 0) {
return $matches[0];
}else{
$rs = parse_url($url);
$main_url = $rs[host];
if(!strcmp(long2ip(sprintf(%u,ip2long($main_url))),$main_url)) {
return $main_url;
}else{
$arr = explode(.,$main_url);
$count=count($arr);
if (in_array($arr[$count-2],$endArr)){
$domain = $arr[$count-3]...$arr[$count-2]...$arr[$count-1];
}else{
$domain = $arr[$count-2]...$arr[$count-1];
}
return $domain;
}// end if(!strcmp...)
}// end if(count...)
}// end function
// 从远程吧图片载到服务器本地 的 类
class GetImage {
var $source;
var $save_to;
var $quality;
function download($method = curl) {
$info = @GetImageSize($this->source);
$mime = $info[mime];
// What sort of image?
$type = substr(strrchr($mime, /), 1);
switch ($type){
case jpeg:
$image_create_func = ImageCreateFromJPEG;
$image_save_func = ImageJPEG;
$new_image_ext = jpg;
// Best Quality: 100
$quality = isSet($this->quality) ? $this->quality : 100;
break;
case png:
$image_create_func = ImageCreateFromPNG;
$image_save_func = ImagePNG;
$new_image_ext = png;
// Compression Level: from 0 (no compression) to 9
$quality = isSet($this->quality) ? $this->quality : 0;
break;
case bmp:
$image_create_func = ImageCreateFromBMP;
$image_save_func = ImageBMP;
$new_image_ext = bmp;
break;
case gif:
$image_create_func = ImageCreateFromGIF;
$image_save_func = ImageGIF;
$new_image_ext = gif;
break;
case vnd.wap.wbmp:
$image_create_func = ImageCreateFromWBMP;
$image_save_func = ImageWBMP;
$new_image_ext = bmp;
break;
case xbm:
$image_create_func = ImageCreateFromXBM;
$image_save_func = ImageXBM;
$new_image_ext = xbm;
break;
default:
$image_create_func = ImageCreateFromJPEG;
$image_save_func = ImageJPEG;
$new_image_ext = jpg;
}
if(isSet($this->set_extension)){
$ext = strrchr($this->source, .);
$strlen = strlen($ext);
$new_name = basename(substr($this->source, 0, -$strlen))...$new_image_ext;
}else{
$new_name = basename($this->source);
}
$save_to = $this->save_to./blog_insert_temp_.time().mt_rand(1,99)...$new_image_ext;
//输出对象 组成跟$_FILE变量一样 得到后自己和平常图片上传处理一样了
$img_info[name] = basename($this->source);
$img_info[type] = $mime;
$img_info[size] = 1000;
$img_info[tmp_name] = $save_to;
$img_info[error] = 0;
if($method == curl){
$save_image = $this->LoadImageCURL($save_to);
}elseif($method == gd){
$img = $image_create_func($this->source);
if(isSet($quality)){
$save_image = $image_save_func($img, $save_to, $quality);
}else{
$save_image = $image_save_func($img, $save_to);
}
}
return $img_info;
}
function LoadImageCURL($save_to){
$ch = curl_init($this->source);
$fp = fopen($save_to, wb);
// set URL and other appropriate options
$options = array(CURLOPT_FILE => $fp,
CURLOPT_HEADER => 0,
CURLOPT_FOLLOWLOCATION => 1,
CURLOPT_TIMEOUT => 60); // 1 minute timeout (should be enough)
curl_setopt_array($ch, $options);
curl_exec($ch);
curl_close($ch);
fclose($fp);
}
}