Please help to see why this code is wrong

Source: Internet
Author: User
Please help us to see why this code is wrong
Call a function named Ob_gzip to compress the content
Ob_start (' Ob_gzip ');
Output content
Ob_end_flush ();
This is the Ob_gzip function.

function Ob_gzip ($content)
{
if (!headers_sent () &&extension_loaded ("Zlib")
&&strstr ($_server["http_accept_encoding"], "gzip")
{
$content = Gzencode ($content. "n//This page is compressed", 9);
Header ("Content-encoding:gzip");
Header ("vary:accept-encoding");
Header ("Content-length:". strlen ($content));
}
return $content;
}

The browser tells me that the encoding format is not supported, how do I do it? Thank you for your help, thank you very much!!
------Solution--------------------
XXX can be utf-8 can also be gb2312 specifically what depends on the encoding of your file 

------Solution--------------------
Specifically, look at your file code.
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