function __construct($urls = false) {
$this->urls = $urls;
}

function set_urls($urls) {
$this->urls = $urls;
return $this;
}

function is_return_header($b) {
$this->curlopt_header = $b;
return $this;
}

function set_method($m) {
$this->medthod = strtoupper($m);
return $this;
}

function start() {
if(!is_array($this->urls) or count($this->urls) == 0){
return false;
}
$curl = $text = array();
$handle = curl_multi_init();
foreach($this->urls as $k=>$v){
$curl[$k] = $this->add_handle($handle,$v);
}

 $this->exec_handle($handle);
 foreach($this->urls as $k=>$v){
   curl_multi_getcontent($curl[$k]);
   echo $curl[$k]."\n";
   //$text[$k] = curl_multi_getcontent($curl[$k]);
   //echo $text[$k],"\n\n";
   curl_multi_remove_handle($handle,$curl[$k]);
 }
 curl_multi_close($handle);

}

private function add_handle($handle,$url) {
$curl = curl_init();
curl_setopt($curl,CURLOPT_URL,$url);
curl_setopt($curl,CURLOPT_HEADER,$this->curlopt_header);
curl_setopt($curl,CURLOPT_RETURNTRANSFER,1);
curl_multi_add_handle($handle,$curl);
return $curl;
}

private function exec_handle($handle) {
$flag = null;
do {
curl_multi_exec($handle,$flag);
} while ($flag > 0);
}
}