fsockopen access URL

学习自alipay

function gateway($url, $time_out="60") {
	$urlinfo = parse_url($url);
	$errno = "";
	$errstr = "";
	$transports = "";
	if ($urlinfo['scheme'] == "https") {
		$transports = "ssl://";
		$urlinfo['port'] = "443";
	}else{
		$transports = "tcp://";
		$urlinfo['port'] = "80";
	}

	$fp = @fsockopen($transports.$urlinfo['host'], $urlinfo['port'], $errno, $errstr, $time_out);
	if (!$fp) {
		die("ERROR: $errno - $errstrn");
	}else{
		fputs($fp, "POST ".$urlinfo['path']." HTTP/1.1rn");
		fputs($fp, "Host: ".$urlinfo['host']."rn");
		fputs($fp, "Content-type: application/x-www-form-urlencodedrn");
		fputs($fp, "Content-length: ".strlen($urlinfo['query'])."rn");
		fputs($fp, "Connection: closernrn");
		fputs($fp, $urlinfo['query']."rnrn");
		while(!feof($fp)) {
			$info[]=@fgets($fp, 1024);
		}
		fclose($fp);
		$info = implode(",", $info);

		var_dump($info);
	}
}