php实用实例采集远程网站图片保存到本地-PHP源码

php实用实例 采集远程网站图片保存到本地
先从文章中把所有 用正则 抠出来. $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]);

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.

//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);

}

}