String HTML entity transformation

Original string: http://www.qdta.cn/xxw/xxInfo.asp?xxlx= Travel Hot News &id=12939
Want to convert to: http://www.qdta.cn/xxw/xxInfo.asp?xxlx= Travel Hot News &id=12939
what function do you use?

Reply to discussion (solution)

function Unescape ($str) {  $str = Rawurldecode ($STR);  Preg_match_all ("/(?:%u.{4}) |& #x. {4};|&#\d+;|.+/u", $str, $r);  $ar = $r [0];p Rint_r ($ar);  foreach ($ar as $k + $v) {    if (substr ($v, 0,2) = = "%u")      $ar [$k] = Iconv ("UCS-2", "GB2312", Pack ("H4", substr ($v,- 4)));    ElseIf (substr ($v, 0,3) = = "& #x")      $ar [$k] = Iconv ("UCS-2", "UTF-8", Pack ("H4", substr ($v, 3,-1)));    ElseIf (substr ($v, 0,2) = = "I") {echo substr ($v, 2,-1). "
";      $ar [$k] = Iconv ("UCS-2", "UTF-8", Pack ("n", substr ($v, 2,-1)));    }  }  return join ("", $ar);}

function Unescape ($str) {  $str = Rawurldecode ($STR);  Preg_match_all ("/(?:%u.{4}) |& #x. {4};|&#\d+;|.+/u", $str, $r);  $ar = $r [0];p Rint_r ($ar);  foreach ($ar as $k + $v) {    if (substr ($v, 0,2) = = "%u")      $ar [$k] = Iconv ("UCS-2", "GB2312", Pack ("H4", substr ($v,- 4)));    ElseIf (substr ($v, 0,3) = = "& #x")      $ar [$k] = Iconv ("UCS-2", "UTF-8", Pack ("H4", substr ($v, 3,-1)));    ElseIf (substr ($v, 0,2) = = "I") {echo substr ($v, 2,-1). "
";      $ar [$k] = Iconv ("UCS-2", "UTF-8", Pack ("n", substr ($v, 2,-1)));    }  }  return join ("", $ar);}

Originally to write their own functions ah. Just do not understand is, why some want to convert into utf-8 format? I am GBK, output, is garbled, I changed the utf-8 to GBK output normal Chinese

There is a way, directly with JS good, such as

There is a way, directly with JS good, such as

Thank you, but this part needs to be handled by PHP.

