php读取远程图片到本地

php读取远程图片到本地

$message   //文章内容

    //正则(这个还不是)

    $reg = "/]*src="(http://(.+)/(.+).(jpg|gif|bmp|bnp))"/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]);

复制代码第二步. 把$img_array 数组循环一下. 做图片保存和文章位置替换 foreach ($img_array as $img){

        //判断是否是自己网站上的 图片

        if('xxx.com' != get_domain($img)){// 如果这个图片不是自己服务器上的

            //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//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-]+.(com|net|org|gov|cc|biz|info|cn)(.(cn|hk))*/";

    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);

            $endArr = array("com","net","org","3322");//com.cn  net.cn 等情况

            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);

    }

}