页面显示是张三，源代码显示是&#24352&#19977，怎么转换呢

Question

支持iconv【php.ini：extension=php_iconv.dll】
-----------------------------------
$str = "张三";
$str = iconv('', 'UTF-8', $str);
print_r($str);

Answer 1

不支持iconv
-----------------------
$str = "张三";
print_r( unescape($str) );function unescape($str) {
 $str = rawurldecode($str);
 preg_match_all("/(?:%u.{4})|&#x.{4};|&#\d+;|.+/U",$str,$r);
 $ar = $r[0];
print_r($ar);
 foreach($ar as $k=>$v) {
   if(substr($v,0,2) == "%u")
     $ar[$k] = iconv("UCS-2","UTF-8",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) == "&#") {
echo substr($v,2,-1)."
";
     $ar[$k] = iconv("UCS-2","UTF-8",pack("n",substr($v,2,-1)));
   }
 }
 return join("",$ar);
}------------------
这些在手册中都有Di

Answer 2

function unescape($str) {
//----------------------------------
//这部分功能同iconv
    $str = rawurldecode($str);
    preg_match_all("/(?:%u.{4})|&#x.{4};|&#\d+;|.+/U",$str,$r);
    $ar = $r[0];
    //print_r($ar);
    return join("",$ar);
//----------------------------------
//这部分功能是根据上面的转换为unicode
    foreach($ar as $k=>$v) {
       if(substr($v,0,2) == "%u")
         $ar[$k] = iconv("UCS-2","UTF-8",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) == "&#") {
    echo substr($v,2,-1)."
    ";
         $ar[$k] = iconv("UCS-2","UTF-8",pack("n",substr($v,2,-1)));
       }
     }
----------------------------------
}