求PHP高手：php 解密JS中的escape的代码

求PHP高手：php 解密JS中的escape的代码

本例经过我测试没有问题.
function utf8RawUrlDecode ($source) {
$decodedStr = "";
$pos = 0;
$len = strlen ($source);
while ($pos < $len) {
$charAt = substr ($source, $pos, 1);
if ($charAt == '%') {
$pos++;
$charAt = substr ($source, $pos, 1);
if ($charAt == 'u') {
// we got a unicode character
$pos++;
$unicodeHexVal = substr ($source, $pos, 4);
$unicode = hexdec ($unicodeHexVal);
$entity = "&#". $unicode . ';';
$decodedStr .= utf8_encode ($entity);
$pos += 4;
}
else {
// we have an escaped ascii character
$hexVal = substr ($source, $pos, 2);
$decodedStr .= chr (hexdec ($hexVal));
$pos += 2;
}
} else {
$decodedStr .= $charAt;
$pos++;
}
}
return $decodedStr;
}
$test = '%u884C%u4E1A%u5206%u6790';//js escape过的'行业分析';
echo utf8RawUrlDecode($test);
?>

1、不要用escape,这个过程是自动编码的，用不着再用js的escape函数。
2、php里用$class=urldecode($_GET["class"]);
这样就可以了。