PHPsocketSocket位于TCP/IP协议的传输控制协议,提供客户-服务器模式的异步通信,即客户向服务器发出服务请求,服务器接收到请求后,提供相应的反馈或服务!我练习了一个最基本的例子:
使用并发起一个阻塞式(block)连接,即服务器如果不返回数据流,则一直保持连接状态,一旦有数据流传入,取得内容后就立即断开连接。代码如下:
代码如下:
PHP
$host = www.sohu.com; //这个地址随便,用新浪的也行,主要是测试用,哪个无所谓
$page = "/index.html";
$port = 80;
$request = "GET $page HTTP/1.1\r\n";
$request .= "Host: $host\r\n";
//$request .= "Referer:$host\r\n";
$request .= "Connection: close\r\n\r\n";
//允许连接的超时时间为1.5秒
$connectionTimeout = 1.5;
//允许远程服务器2秒钟内完成回应
$responseTimeout = 2;
//建立一个socket连接
$fp = fsockopen($host,$port,$errno,$errstr,$connectionTimeout);
if (!$fp) {
throw new Exception("Connection to $hostFailed:$errstr");
} else {
stream_set_blocking($fp,true);
stream_set_timeout($fp,$responseTimeout);
}
//发送请求字符串
fwrite($fp,$request);
//取得返回的数据流内容
$content = stream_get_contents($fp);
echo $content;
$Meta = stream_get_Meta_data($fp);
if ($Meta['timed_out']) {
throw new Exception("Responsefrom web services server timed out.");
}
//关闭Socket连接
fclose($fp);
?>
原文链接:https://www.f2er.com/php/25786.html$host = www.sohu.com; //这个地址随便,用新浪的也行,主要是测试用,哪个无所谓
$page = "/index.html";
$port = 80;
$request = "GET $page HTTP/1.1\r\n";
$request .= "Host: $host\r\n";
//$request .= "Referer:$host\r\n";
$request .= "Connection: close\r\n\r\n";
//允许连接的超时时间为1.5秒
$connectionTimeout = 1.5;
//允许远程服务器2秒钟内完成回应
$responseTimeout = 2;
//建立一个socket连接
$fp = fsockopen($host,$port,$errno,$errstr,$connectionTimeout);
if (!$fp) {
throw new Exception("Connection to $hostFailed:$errstr");
} else {
stream_set_blocking($fp,true);
stream_set_timeout($fp,$responseTimeout);
}
//发送请求字符串
fwrite($fp,$request);
//取得返回的数据流内容
$content = stream_get_contents($fp);
echo $content;
$Meta = stream_get_Meta_data($fp);
if ($Meta['timed_out']) {
throw new Exception("Responsefrom web services server timed out.");
}
//关闭Socket连接
fclose($fp);
?>