在utf-8下通过javascript的url编码测试 
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
<script>
document.write(escape("哈哈")+"<br>");//原来用这个加密测试
document.write(unescape("%u54C8%u54C8")+"<br>");//
document.write(encodeURIComponent("哈哈")+"<br>");
document.write(decodeURIComponent("%E5%93%88%E5%93%88")+"<br>");
</script>
</head>
<body>
<?php
echo urldecode("%E5%93%88%E5%93%88");
echo "<br>";
echo rawurldecode("%E5%93%88%E5%93%88");
echo "<br />";
echo utf8_decode("%E5%93%88%E5%93%88");
echo "<br />";
echo "%E5%93%88%E5%93%88";
echo "<br />";
echo $_GET['act'];
echo "<br />";
echo urlencode($_GET['act']);
?>
</body>
</html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
<script>
document.write(escape("哈哈")+"<br>");//原来用这个加密测试
document.write(unescape("%u54C8%u54C8")+"<br>");//
document.write(encodeURIComponent("哈哈")+"<br>");
document.write(decodeURIComponent("%E5%93%88%E5%93%88")+"<br>");
</script>
</head>
<body>
<?php
echo urldecode("%E5%93%88%E5%93%88");
echo "<br>";
echo rawurldecode("%E5%93%88%E5%93%88");
echo "<br />";
echo utf8_decode("%E5%93%88%E5%93%88");
echo "<br />";
echo "%E5%93%88%E5%93%88";
echo "<br />";
echo $_GET['act'];
echo "<br />";
echo urlencode($_GET['act']);
?>
</body>
</html>
VC小技巧20个 
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