Php+socket analog send GET, POST request

/** *  using php socket  programming to simulate http post and get requests  *  @author  koma */class  Http{private  $sp  =  "\ r \ n";  //here must be written in double quotes private  $protocol  =  ' http/1.1 ' ;p rivate  $requestLine  =  "";p rivate  $requestHeader  =  ";p rivate  $requestBody  =  "";p rivate  $requestInfo  =  "";p rivate  $fp  = null;private $ urlinfo = null;private  $header  = array ();p rivate  $body  = array (); Public function __construct ($url)  {$this->parseurl ($url), $port  = isset ($this, urlinfo[' Port '])  ? isset ($this->urlinfo[' port ')  :  ';/* *  ' Note: The URL parameter in Fsockopen here is "www.xxx.com"  *  not able to take "http://"  */$this->fp = fsockopen ($ this->urlinfo[' host '],  $port,  $errno,  $errstr,  30);if  ( ! $this->fp )  {echo  $errstr. ' ('. $errno. ') '; ExIt ();} $this->header[' host '] =  $this->urlinfo[' host ';} Public function get ($header  = array (),  $body  = array ())  {$this Header = array_merge ($this->header,  $header) $this->body =  $body $this Request (' GET ');} Public function post ($header  = array (),  $body  = array ())  {$this Header = array_merge ($this->header,  $header) $this->body =  $body $this Request (' POST ');} Private function request ($method)  {$header  =  ""; $this->requestline = $ Method. '   '. $this->urlinfo[' path ']. '   '. $this->protocol;foreach  (  $this->header as  $key  =>  $value   )  {$header  .=  $header  ==  " ?  $key. ': '. $value  :  $this->sp. $key . ': '. $value;} $this->requestheader =  $header. $this->sp $this->sp; $this->requestinfo =  $this->requestline. $this->sp. $this->requestheader;if  ( !empty ($this Body)    {$body  = ;foreach  (  $this->body as  $key  => $ value )  {$body  .=  $body  ==  " ?  $key. ' = '. $value  :  ' & ' $key. ' = '. $value;} $this->requestinfo .=  $body;} if  ( fwrite ($this->fp,  $this->requestinfo)  )  {while  ( !feof ($this- >FP)  )  {$str  = fread ($this->fp, 1024);echo  $str;} Fclose ($this->fp);} Private function parseurl ($url)  {$this->urlinfo = parse_url ($url);} $url  =  "http://news.163.com/14/1102/01/AA0PFA7Q00014AED.html"; $http  = new http ($url) ;/*  send GET request  */echo  $http->get (Array (' user-agent '  =>  ' mozilla/5.0  (Windows  NT 6.1; WOW64)  AppleWebKit/537.36  (khtml, like geCKO)  chrome/35.0.1916.153 safari/537.36 ',);/*  send a POST request echo  $http->post (' User-agent '  =>  ' mozilla/5.0  (windows nt 6.1; wow64)  applewebkit/537.36   (Khtml, like gecko)  chrome/35.0.1916.153 safari/537.36 ',//must add these two for post requests ' Content-length '  => 20, ' content-type '  =>  ' application/x-www-form-urlencoded '),  Array (' username ' = ' koma ',  ' age ' =>22); * *

Take a look, what do you think? Please correct me!

Php+socket analog send GET, POST request