PHP uses socket to send HTTP requests. PHP socket to send requests _ PHP Tutorial

PHP uses socket to send HTTP requests, and phpsocket to send requests. PHP uses socket to send HTTP requests. phpsocket to send requests this article describes how PHP uses socket to send HTTP requests. For your reference, the details are as follows: so PHP uses socket to send HTTP requests, and phpsocket to send requests

This example describes how PHP uses socket to send HTTP requests. We will share this with you for your reference. The details are as follows:

Socket mode:

$ 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 ); // The line feed indicates \ r \ n. Note that there may be spaces behind the copied code $ http = <
 
  
Fsockopen mode:
  
$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);}
  
Original socket method:
  
$ Fp = stream_socket_client ("tcp: // www.baidu.com: 80", $ errno, $ errstr, 30); if (! $ Fp) {echo "$ errstr ($ errno)
\ N ";}else {$ http = <
   
    
Stream method (get ):
    
$ Http = <
     
      
Array ('header' => $ http, 'timeout' => 1, // timeout second 'method' => 'get ', // the default method is 'protocol _ version' => '1. 1', // The default value is 1.0),); // for the parameter format, refer to parameter layout = stream_context_create ($ hdrs); echo file_get_contents ('http: // www.baidu.com ', 0, $ context );
     
    
Stream post:
    
$ Postdata = http_build_query (array ('Act '=> 'Save', 'id' => 387171); $ http = <
     
      
Array ('header' => $ http, 'timeout' => 1, // timeout second 'method' => 'post', 'content' => $ postdata, 'protocol _ version' => '1. 1', // The default value is 1.0),); // for the parameter format, see paihttp://php.net/manual/zh/context.curl.php?context = stream_context_create ($ hdrs); echo file_get_contents ('http: // test. cm/song. php ', 0, $ context );
     
    
Note: http1.1 must contain the Host header, but http1.0 may not