How PHP uses the socket to send HTTP requests

The example in this article describes how PHP uses the socket to send HTTP requests. Share to everyone for your reference, 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 inside of the newline represents \ r \ n Note that there may be spaces behind the copy code $http = < <
 
  

  
Fsockopen Way:

  

  
$fp = Fsockopen ("www.baidu.com", $errno, $errstr, +), 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 ($fp, +);  }  Fclose ($FP);}
  

  
Original socket Mode:

  

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

    
Stream mode (GET):

    

    
$http = <<
     
      Array (' header ' = = $http, ' timeout ' =>1,//Timeout seconds ' method ' = ' GET ',//Default way ' Protocol_v Ersion ' + ' 1.1 ',//default is 1.0),///parameter format reference Http://php.net/manual/zh/context.http.php//curl format can be referenced; http://php.net/ Manual/zh/context.curl.php$context = Stream_context_create ($hdrs); Echo file_get_contents (' http://www.baidu.com ', 0 , $context);
     
    

    
Stream Mode post:

    

    
$postdata = http_build_query (Array (' act ' = ' save ', ' ID ' =>387171)); $http = <<
     
      Array (' header ' = = $http, ' timeout ' =>1,//Timeout seconds ' method ' = ' POST ', ' content ' = $p Ostdata, ' protocol_version ' = ' 1.1 ',//default = 1.0);//Parameter Format reference Http://php.net/manual/zh/context.http.php//curl The format of the method can be referenced; http://php.net/manual/zh/context.curl.php$context = Stream_context_create ($hdrs); Echo file_get_contents (' http://test.cm/song.php ', 0, $context);
     
    

    
Note: The Host header must be included in the http1.1, while the http1.0 can have no

    
More about PHP related content readers can view the topic: "PHP Socket Usage Summary", "PHP Basic Grammar Primer Tutorial", "PHP error and Exception handling method summary" and "PHP common functions and Skills summary"

    
I hope this article is helpful to you in PHP programming.
                                                
    
The above describes how PHP uses the socket to send HTTP requests, including the aspects of the content, I hope the PHP tutorial interested in a friend helpful.

    
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