php curl采集

 
set_time_limit(0);
function getImage($url,$save_dir='',$filename='',$type=0){
            if(trim($url)==''){
                return array('file_name'=>'','save_path'=>'','error'=>1);
            }
            if(trim($save_dir)==''){
                $save_dir='./';
            }
            if(trim($filename)==''){//保存文件名
                $ext=strrchr($url,'.');
            if($ext!='.gif'&&$ext!='.jpg'&&$ext!='.png'&&$ext!='.jpeg'){
                return array('file_name'=>'','save_path'=>'','error'=>3);
            }
                $filename=time().rand(0,10000).$ext;
            }
            if(0!==strrpos($save_dir,'/')){
                $save_dir.='/';
            }
            //创建保存目录
            if(!file_exists($save_dir)&&!mkdir($save_dir,0777,true)){
                return array('file_name'=>'','save_path'=>'','error'=>5);
            }
            //获取远程文件所采用的方法
            if($type){
                $ch=curl_init();
                $timeout=5;
                curl_setopt($ch,CURLOPT_URL,$url);
                curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);
                curl_setopt($ch,CURLOPT_CONNECTTIMEOUT,$timeout);
                curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE );
                curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
                $img=curl_exec($ch);
                curl_close($ch);
            }else{
                ob_start();
                readfile($url);
                $img=ob_get_contents();
                ob_end_clean();
            }
            //$size=strlen($img);
            //文件大小
            $fp2=@fopen($save_dir.$filename,'a');
            fwrite($fp2,$img);
            fclose($fp2);
            unset($img,$url);
            return array('file_name'=>$filename,'save_path'=>$save_dir.$filename,'error'=>0);
        }

调用例子         getImage('https://gss1.bdstatic.com/5eN1dDebRNRTm2_p8IuM_a/res/img/richanglogo168_24.png','./Data','logo_curl_https2.png',1);
?>