HTTP Protocol Analysis Series (v)------Php+socket program send HTTP request ___ Programming

First, Php+socket request principle

second, simulate POST request

 

third, encapsulate their own HTTP class

 HTTP request Class Interface interface proto{//connection URL function conn ($url);
	Send a Get Query function get ();
	Send post query function post ();
Closes the connection function close ();
	Class Http implements proto{const crlf= "\ r \ n";
	protected $errno =-1;
	protected $errstr = ';
	protected $response = ';
	protected $url =null;
	protected $version = ' http/1.1 ';
	protected $FH =null;
	Protected $line =array ();
	Protected $header =array ();
	
	Protected $body =array ();
		Public function __construct ($url) {$this->conn ($url);
	$this->setheader (' Host: '. $this->url[' host ')); //This method is responsible for write request line protected function Setline ($method) {$this->line[0]= $method. ' '. $this->url[' path ']. '
	'. $this->version;
	}//This method is responsible for writing header information protected function SetHeader ($headerline) {$this->header[]= $headerline;
	}//This method is responsible for writing the principal information protected function Setbody ($body) {$this->body[]=http_build_query ($body);;
		}//Connection URL function conn ($url) {$this->url=parse_url ($url); Judge Port if (!isset ($this->url[' Port ')) {$this->url[' port']=80;
	$this->fh=fsockopen ($this->url[' host '), $this->url[' Port ', $this->errno, $this->errstr,3);
		//Constructs a GET Request data function get () {$this->setline (' get ');
		$this->request ();
	return $this->response;
		
		The data function post of the POST request ($body =array ()) {//constructs the body information $this->setline (' post ');
		Set Content-type $this->setheader (' content-type:application/x-www-form-urlencoded ');
		Set the body information, $this->setbody ($body) than the one where get is different;
		Compute content-length $this->setheader (' content-length: ' strlen ($this->body[0));
		$this->request ();
	return $this->response; ///Real Requests function request () {//the request line, header information, entity information in an array, easy to splice $req =array_merge ($this->line, $this->header,array ("
		), $this->body,array (")");
		$req =implode (Self::crlf, $req);
		
		Fwrite ($this->fh, $req);
		while (!feof ($this->fh)) {$this->response.=fread ($this->fh,1024);
	$this->close ();//close connection return $this->response; //Turn off connection function close () {FCLOSE ($this->FH); }
}

Four, the test function, realizes the batch post function

(i), the establishment of data tables

 

(ii), procedure realization

(1), establish liuyanben.php

  

<! DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 transitional//en" "Http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd ">  

(2). Realize Batch Post
  

Set_time_limit (0);
$url = ' http://localhost/socket/liuyanben.php ';

For ($i =1 $i <100; $i + +) {
	$str =str_shuffle (' abcdefghigklmnopqrstuvwxyz ');
	$title =substr ($str, 0,5);
	$content =substr ($str, 6,8);
	$http =new http ($url);
	$http->post (' title ' => $title, ' content ' => $content, ' Submit ' => ' message '));
	echo $title. '--------'. $con. ' <br/> ';
	Usleep ();
}
(iii), experimental results
  

View Page