How PHP uses socket to send HTTP request-PHP Tutorial-php.cn

How PHP uses socket to send HTTP request

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Release： 2016-07-29 09:03:45

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The example in this article describes how PHP uses socket to send HTTP requests. Share it with everyone for your reference, the details are as follows:

socket method:

$socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
//socket_set_option($socket, SOL_SOCKET, SO_SNDTIMEO, array("sec"=>20, "usec"=>0));
socket_connect($socket, 'www.baidu.com', 80);
//里面的换行代表 \r\n 注意拷贝的代码后面可能有空格
$http = <<Copy after login

fsockopen method:

$fp = fsockopen("www.baidu.com", 80, $errno, $errstr, 30);
if (!$fp) {
  echo "$errstr ($errno)
\n";
} else {
  $out = "GET / HTTP/1.1\r\n";
  $out .= "Host: www.baidu.com\r\n";
  $out .= "Connection: Close\r\n\r\n";
  fwrite($fp, $http);
  while (!feof($fp)) {
    echo fgets($fp, 128);
  }
  fclose($fp);
}

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Original socket method:

$fp = stream_socket_client("tcp://www.baidu.com:80", $errno, $errstr, 30);
if (!$fp) {
  echo "$errstr ($errno)
\n";
} else {
  $http = <<Copy after login

stream Method (get):

$http = <<array(
        'header' => $http,
        'timeout'=>1, //超时 秒
        'method' => 'GET', //默认方式
　　　　　　　　　'protocol_version' => '1.1', //默认为 1.0
    ),
);
//参数格式参考 http://php.net/manual/zh/context.http.php
//curl方式的格式可以参考； http://php.net/manual/zh/context.curl.php
$context = stream_context_create($hdrs);
echo file_get_contents('http://www.baidu.com', 0, $context);

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stream way post:

$postdata = http_build_query(array('act'=>'save', 'id'=>387171));
$http = <<array(
        'header' => $http,
        'timeout'=>1, //超时 秒
        'method' => 'POST',
        'content' => $postdata,
　　　　　　　　　'protocol_version' => '1.1', //默认为 1.0
    ),
);
//参数格式参考 http://php.net/manual/zh/context.http.php
//curl方式的格式可以参考； http://php.net/manual/zh/context.curl.php
$context = stream_context_create($hdrs);
echo file_get_contents('http://test.cm/song.php', 0, $context);

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Note: http1.1 must contain the Host header, but http1.0 does not need it

Readers who are interested in more PHP-related content can check out this site's special topic: "php socket usage Summary", "Introduction Tutorial on PHP Basic Syntax", "Summary of PHP Error and Exception Handling Methods" and "Summary of Common PHP Functions and Techniques"

I hope this article will be helpful to everyone in PHP programming.

The above introduces the method of using PHP socket to send HTTP requests, including the relevant content. I hope it will be helpful to friends who are interested in PHP tutorials.