我正在尝试弄清楚如何从列表中随机选择一个代理 ip，然后使用它执行卷曲，如果发生故障，请使用新的代理 ip。这是我没有随机化的工作代码：

    $url       = "www.example.com";
    $loginpassw = 'myproxypw';
    $proxy_ip = '23.27.37.128';
    $proxy_port = '29842';
    $ch        = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_PROXYPORT, $proxy_port);
    curl_setopt($ch, CURLOPT_PROXY, $proxy_ip);
    curl_setopt($ch, CURLOPT_PROXYUSERPWD, $loginpassw);
    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
    curl_setopt($ch, CURLOPT_AUTOREFERER, true);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_TIMEOUT, 600);
    $html  = curl_exec($ch);    
    if (strpos($html,'To continue, please type the characters below') !== false) {
        echo "now an error has occurred, let's try a new proxy";
    }
    curl_close($ch);

理想情况下，proxy_ip和proxy_port必须在以下列表中保持不变：

$proxylist = array (
            array("ip" => "23.27.37.128", "port" => "29842"),
            array("ip" => "23.27.37.111", "port" => "29852"),
            array("ip" => "23.27.37.112", "port" => "29742"),
            array("ip" => "23.27.37.151", "port" => "29242")
             );

想知道我是否可以使用随机播放：

shuffle($proxylist);
while($element = array_pop($proxylist)){
  return $element;
}

第二个问题是最好的方法，我的 PHP 并不完美，所以我想知道与其一遍又一遍地重写顶部卷曲，我应该将其存储在函数中吗？

任何帮助表示赞赏。

谢谢西蒙

编辑：

以下代码似乎可以在我将代码拆分为两个函数的地方工作：

    function curltime($url, $proxy_ip, $proxy_port, $loginpassw){
            $ch        = curl_init();
            curl_setopt($ch, CURLOPT_URL, $url);
            curl_setopt($ch, CURLOPT_PROXY, $proxy_ip);
            curl_setopt($ch, CURLOPT_PROXYUSERPWD, $loginpassw);
            curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 0);
            curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
            curl_setopt($ch, CURLOPT_AUTOREFERER, true);
            curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
            curl_setopt($ch, CURLOPT_TIMEOUT, 600);
            return curl_exec($ch);  
            curl_close($ch);
    }
//now let's do the curl
            $url       = "www.example.com";
            $proxylist = array (
            array("proxyip" => "23.27.37.128", "proxyport" => "29842"),
            array("proxyip" => "23.27.37.111", "proxyport" => "29852"),
            array("proxyip" => "23.27.37.112", "proxyport" => "29742"),
            array("proxyip" => "23.27.37.151", "proxyport" => "29242")
             );
            foreach ($proxylist[mt_rand(0,count($proxylist)-1)] as $key => $value) {
                $$key = $value;
            }
            $html = $this->curltime($url, $proxyip, $proxyport, 'somepassword');

            if (strpos($html,'To continue, please type the characters below') !== false) {
                echo "now we have errors so let's try again" 
            foreach ($proxylist[mt_rand(0,count($proxylist)-1)] as $key => $value) {
                $$key = $value;
            }
            $html = $this->curltime($url, $proxyip, $proxyport, 'somepassword');
            }
            $cache .= $html;

有人知道我做循环的更好方法吗？