本文实例讲述了php自定义类fsocket模拟post或get请求的方法。分享给大家供大家参考。具体如下：

zsocket.class.php文件如下：

<?php

class ZSocket {

/*

* Init

*/

private function _fsockopen($host, $port, &$errno, &$errstr, $timeout){

$ip = @gethostbyname($host);

$s = @socket_create(AF_INET, SOCK_STREAM, 0);

if(socket_set_nonblock($s)){

$r = @socket_connect($s, $ip, $port);

if ($r || socket_last_error() == EINPROGRESS) {

$errno = EINPROGRESS;

return $s;

}

}

$errno = socket_last_error($s);

$errstr = socket_strerror($errno);

socket_close($s);

return false;

}

/*

* 设置Cookie

*/

private function _setCookie($cookie){

$_cookies = explode("; ",$cookie);

$_tmp = explode("=",$_cookies[0]);

setcookie($_tmp[0], $_tmp[1]);

return $_cookies;

}

/*

* 获取返回数据header内容

*/

private function _getDataHeader(&$fp,&$reHeader,&$cookies){

$maxlen = 0;

while(!feof($fp)){

$line = fgets($fp,1024);

if(substr($line, 0, 12) == 'Set-Cookie: '){ $cookies[] = $this->_setCookie(substr($line, 12)); }

$reHeader .= $line;

if(substr($line, 0, 16) == 'Content-Length: '){

$maxlen = intval(substr($line, 16, -2));

}

if($line == "rn" || $line == "") break;

}

return $maxlen;

}

/*

* 获取返回数据正文内容

*/

private function _getDataBody(&$fp,$maxlen){

$reData = "";

while(!feof($fp)){

$line = fgets($fp,$maxlen+1);

$reData .= $line;

if(strlen($line) < $maxlen) $maxlen = $maxlen - strlen($line);

else break;

}

return $reData;

}

/*

* 设置并返回要发送的header内容

*/

public function get_HeaderInfo($host,$type='GET',$file='/',$params=array(),$head=array(),$cookies=array()){

$_params = $_cookies = '';

if(is_array($params)){

foreach($params as $key=>$value){

$_params .= "&".$key."=".urlencode($value);

}

$_params = (strlen($_params) > 1) ? substr($_params,1) : '';

}else if(is_string($params)){

$_params = urlencode($params);

}

foreach($cookies as $key=>$value){

$_cookies .= "; ".$key."=".urlencode($value);

}

$_cookies = (strlen($_cookies) > 2) ? substr($_cookies,2) : '';

$file .= ($type == 'GET') ? ($_params == '' ? '' : '?'.$_params) : '';

$header = $type." ".$file." HTTP/1.1rn";

$header .= "Host: ".$host."rn";

//$header .= "Referer: ".get_ip()."rn";

//$header .= "X-Forwarded-For: ".get_ip()."rn";

$header .= ($type == 'GET') ? '' : "Content-Type: application/x-www-form-urlencodedrn";

if(is_array($head) && $head != array()){

foreach($head as $k=>$v){

$header .= $k.": ".$v."rn";

}

}

$header .= "Content-Length: ".strlen($_params)."rn";

if($_cookies != '') $header .= "Cookie: ".$_cookies."rn";

/*

foreach($_SERVER as $name => $value){

if(substr($name, 0, 5) == 'HTTP_' && $name != 'HTTP_HOST'){

$header .= str_replace(' ', '-', ucwords(strtolower(str_replace('_', ' ', substr($name, 5))))).":".$value."rn";

}

}

*/

$header .= "Connection: Closernrn";

$header .= $_params."rn";

return $header;

}

/*

* 发送,并返回结果 Array

*/

public function get_SendData($host,$port=80,$header=''){

if(function_exists('fsockopen')){

$fp = fsockopen($host,$port,$errno,$errstr,10);

}else if(function_exists('pfsockopen')){

$fp = pfsockopen($host,$port,$errno,$errstr,10);

}else if(function_exists('stream_socket_client')){

$fp = stream_socket_client($host.':'.$port,$errno,$errstr,10);

}else{

$fp = $this->_fsockopen($host,$port,$errno,$errstr,10);

}

$fp = fsockopen($host,$port,$errno,$errstr,10);

if(!$fp) return array('header'=>'','data'=>$errstr."--->".$errno,'cookie'=>'');

$reHeader = $reData = "";

$cookies = array();

fputs($fp,$header);

$maxlen = $this->_getDataHeader($fp,$reHeader,$cookies);

$reData = $this->_getDataBody($fp,$maxlen);

fclose($fp);

return array('header'=>$reHeader,'data'=>$reData,'cookie'=>$cookies);

}

}

demo代码如下：

$host = 'www.jb51.net';

$port = '80';

$type = 'POST';

$file = '/';

$params = '';

//include_once('include/zsocket.class.php'); //include

$zsk = new ZSocket();

$header = $zsk->get_HeaderInfo($host,$type,$file,$params);

$data = $zsk->get_SendData($host,$port,$header);

/*

echo "<!--rn";

print_r($header);

print_r($data);

echo "-->rn";

*/

var_dump($header);

var_dump($data);

希望本文所述对大家的php程序设计有所帮助。