php實用獲取遠程圖片的通用方法

function auto_save_image($body){
    $img_array = explode('&',$body);
    /*$img_array = array();
    preg_match_all("/(src)=[\"|\'| ]{0,}(http:\/\/(.*)\.(gif|jpg|jpeg|bmp|png))[\"|\'| ]{0,}/isU", $body, $img_array);
    $img_array = array_unique($img_array[2]);*/ //也可以自動匹配
    set_time_limit(0);
    $imgPath = "uploads/allimg/".date("Ymd")."/";
    $milliSecond = strftime("%H%M%S",time());
    if(!is_dir($imgPath)) @mkdir($imgPath,0777);
    foreach($img_array as $key =>$value)
    {
            $value = trim($value);
            $get_file = @file_get_contents($value);
            $rndFileName = $imgPath."/".$milliSecond.$key.".".substr($value,-3,3);
            if($get_file)
            {
                    $fp = @fopen($rndFileName,"w");
                    @fwrite($fp,$get_file);
                    @fclose($fp);
            }
            $body = @ereg_replace($value, $rndFileName, $body);
    } 
    return $body;
}