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");