php自定义类fsocket模拟post或get请求的方法_php技巧

zsocket.class.php文件如下：

<?phpclass 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 == "/r/n" || $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/1.1/r/n";  $header .= "Host: ".$host."/r/n";  //$header .= "Referer: ".get_ip()."/r/n";  //$header .= "X-Forwarded-For: ".get_ip()."/r/n";  $header .= ($type == 'GET') ? '' : "Content-Type: application/x-www-form-urlencoded/r/n";  if(is_array($head) && $head != array()){   foreach($head as $k=>$v){    $header .= $k.": ".$v."/r/n";   }  }  $header .= "Content-Length: ".strlen($_params)."/r/n";  if($_cookies != '') $header .= "Cookie: ".$_cookies."/r/n";  /*  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."/r/n";   }  }  */  $header .= "Connection: Close/r/n/r/n";  $header .= $_params."/r/n";  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 "<!--/r/n";print_r($header);print_r($data);echo "-->/r/n";*/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。