php实现utf-8与gb2312的url编码转换

<?php
header('content-type: text/html; charset=utf-8');
echo '<br />百度关键词url编码转换示例：<br />';
$urlbaidu = 'http://www.baidu.com/s?wd=%d6%d0%ce%c4';
$arrparse = parse_url($urlbaidu);
parse_str($arrparse ['query'],$output);
echo '乱码：' . $output['wd'] . '<br />';
//将gb2312编码转换成utf-8编码
$strutf8 = mb_convert_encoding($output['wd'], 'utf-8', 'gb2312');
 
echo '可读码：' . $strutf8 . '<br />';
echo '<br />谷歌关键词url编码转换示例：<br />';
$urlgoogle = 'http://www.google.cn/search?hl=zh-cn&source=hp&q=%e4%b8%ad%e6%96%87&aq=f&oq=';
$arrparse = parse_url($urlgoogle);
parse_str($arrparse ['query'],$output);
//谷歌关键词url编码是utf-8，不用再作转换
echo '可读码：' . $output['q'] . '<br />';