<?php
echo urlencode('我家里的小狗');
//%E6%88%91%E5%AE%B6%E9%87%8C%E7%9A%84%E5%B0%8F%E7%8B%97
?>
<?php
echo urldecode('%E6%9D%8E%E7%99%BD');
//李白
?>
echo urlencode('我家里的小狗');
//%E6%88%91%E5%AE%B6%E9%87%8C%E7%9A%84%E5%B0%8F%E7%8B%97
?>
<?php
echo urldecode('%E6%9D%8E%E7%99%BD');
//李白
?>