实现获取http内容的php函数分享

<?php
function http_open($url, $data, $cookie = null, $method = "GET", $timeout = 60) {
 $options = array();
 $options[http][method] = $method;
 $options[http][user_agent] = $_SERVER[HTTP_USER_AGENT];
 $options[http][timeout] = $timeout;
 if($method == "POST") :
  $length = strlen($data);
  $options[http][header] = "Content-type: application/x-www-form-urlencoded\r\n".
  "Content-Length: {$length}\r\n".
  "P3P: CP=\"CURa ADMa DEVa PSAo PSDo OUR BUS UNI PUR INT DEM STA PRE COM NAV OTC NOI DSP COR\"\r\n".
  "cookie: {$cookie}\r\n".
  "Connection: close\r\n";
  $options[http][content] = $data;
 else:
  $options[http][header] = "Content-type: application/x-www-form-urlencoded\r\n".
  "P3P: CP=\"CURa ADMa DEVa PSAo PSDo OUR BUS UNI PUR INT DEM STA PRE COM NAV OTC NOI DSP COR\"\r\n".
  "cookie: {$cookie}\r\n".
  "Connection: close\r\n";
 endif;

 $context = stream_context_create($options);
 return file_get_contents($url, 0, $context);
}
echo http_open("http://localhost/1.php", "username=haowei", "id=5", "POST");