php fopen请求远程页面如何设置http头信息

我们可以通过stream_context_create函数设置fopen请求的http头信息。具体实现代码如下：

<?php
$opts = array(
  \'http\'=>array(
    \'method\'=>\"GET\",
    \'header\'=>\"Accept-language: en\\r\\n\" .
              \"Cookie: foo=bar\\r\\n\"
  )
);

$context = stream_context_create($opts);

/* Sends an http request to www.example.com
   with additional headers shown above */
$fp = fopen(\'http://www.example.com\', \'r\', false, $context);
fpassthru($fp);
fclose($fp);
?>