php判断浏览器语言

<?php
$lang = substr($_SERVER['HTTP_ACCEPT_LANGUAGE'], 0, 4);
//只取前4位，这样只判断最优先的语言。如果取前5位，可能出现en,zh的情况，影响判断。
if (preg_match("/zh-c/i", $lang))
<span style="white-space:pre">	</span>echo "简体中文";
else if (preg_match("/zh/i", $lang))
<span style="white-space:pre">	</span>echo "繁體中文";
else if (preg_match("/en/i", $lang))
<span style="white-space:pre">	</span>echo "English";
else if (preg_match("/fr/i", $lang))
<span style="white-space:pre">	</span>echo "French";
else if (preg_match("/de/i", $lang))
<span style="white-space:pre">	</span>echo "German";
else if (preg_match("/jp/i", $lang))
<span style="white-space:pre">	</span>echo "Japanese";
else if (preg_match("/ko/i", $lang))
<span style="white-space:pre">	</span>echo "Korean";
else if (preg_match("/es/i", $lang))
<span style="white-space:pre">	</span>echo "Spanish";
else if (preg_match("/sv/i", $lang))
<span style="white-space:pre">	</span>echo "Swedish";
else
<span style="white-space:pre">	</span>echo $_SERVER["HTTP_ACCEPT_LANGUAGE"];
 
?>