php采集内容中带有图片地址的远程图片并保存的方法

function my_file_get_contents($url,$timeout=30) {
?if ( function_exists('curl_init') )?
?{
? $ch = curl_init();
? curl_setopt ($ch,curlopt_url,$url);
? curl_setopt ($ch,curlopt_returntransfer,1);
? curl_setopt ($ch,curlopt_connecttimeout,$timeout);
? $file_contents = curl_exec($ch);
? curl_close($ch);
?}?
?else if ( ini_get('allow_url_fopen') == 1 || strtolower(ini_get('allow_url_fopen')) == 'on' )???
?{
? $file_contents = @file_get_contents($url);
?}?
?else?
?{
? $file_contents = '';
?}
?return $file_contents;
}

function get_remote($body,$title){
?
?$img_array = array();?
?$img_path = realpath("../../../upfile/news/").'/'.date("y/m/d/"); //采集远程图片保存地址
?//die($img_path);
?$img_rpath='/upfile/news/'.date("y/m/d/");? //设置拜访地址
?$body = stripslashes(strtolower($body));?
?preg_match_all("/(src|src)=["|'| ]{0,}(http://(.*).(gif|jpg|jpeg|png))/isu",$body,$img_array);?
?$img_array = array_unique($img_array[2]);?
?foreach ($img_array as $key => $value) {?
? $get_file = my_file_get_contents($value,60);
? $filetime = time();???
? $filename = date("ymdhis",$filetime).rand(1,999).'.'.substr($value,-3,3);?
? if(emptyempty($get_file)){
?? @sleep(10);
?? $get_file = my_file_get_contents($value,30);
?? if(emptyempty($get_file)){
??? $body = preg_replace("/".addcslashes($value,"/")."/isu",'/notfound.jpg',$body);
??? continue;
??? }
? }
? if(!emptyempty($get_file) ){
?? if( mkdirs($img_path) )
?? {
??? $fp = fopen($img_path.$filename,"w");
??? if(fwrite($fp,$get_file)){?????????
???? $body = preg_replace("/".addcslashes($value,$img_rpath.$filename,$body);?
??? }
??? fclose($fp);
??? @sleep(6);
?? }???
? }????
?
?}
?$body =str_replace("<img","<img ",$body);?
?return $body;
?
}
?
function mkdirs($dir)
{
?if(!is_dir($dir)){
? if(!mkdirs(dirname($dir))){
?? return false;}
? if(!mkdir($dir,0777)){
?? return false;}
?}
?return true;
}
//用法如下：
?
$str ='fasfsdafsa<img src=http://filesimg.xxxx.com/2010/03/2010062300391582.jpg />';
echo get_remote($str,'图片');