PHP异步调用多线程

$data["name"] = 'godlike';
$data["age"] = 18;

$post = http_build_query($data);
$len = strlen($post);

$host = "www.example.com";

$path = "/member/lackGoods/sendSmsAll";
$errno ='';
$errstr='';
$fp = fsockopen($host,80,$errno,$errstr,30);

if (!$fp) {
    echo "$errstr ($errno)\n";
} else {

    $out = "POST $path HTTP/1.1\r\n";   //通过POST方式
    $out .= "Host: $host\r\n";
    $out .= "Content-type: application/x-www-form-urlencoded\r\n";
    $out .= "Connection: Close\r\n";
    $out .= "Content-Length: $len\r\n";
    $out .= "\r\n";
    $out .= $post . "\r\n";
    fwrite($fp, $out);
    // while (!feof($fp)) {
    // $receive .= fgets($fp, 128);
    // }
    fclose($fp);
}

public function sendSmsAll()
{
　　var_dump($_POST);
　　//发送短信的方法
}

//还可以使用curl实现

$ch = curl_init();

$curl_opt = array(CURLOPT_URL, 'http://www.example.com/backend.php',

CURLOPT_RETURNTRANSFER, 1,

CURLOPT_TIMEOUT, 1,);

curl_setopt_array($ch, $curl_opt);

curl_exec($ch);

curl_close($ch);