php中循环实现(字符串，对象，或者数组)编码相互转换

/**
* 循环实现编码互转
*
* @param string $param(字符串，对象，或者数组)，$currCharset当前编码，$toCharset期望编码
* @return 参数类型

*/

function zhandi_iconv($param,$currCharset,$toCharset){


if ($currCharset != $toCharset){
if (is_string($param)){
return iconv($currCharset, $toCharset, $param);
}else if (is_array($param)){
foreach ($param as $key => $value){
$param[$key] = zhandi_iconv($value,$currCharset,$toCharset);
}
return $param;
}else if (is_object($param)){
foreach ($param as $key => $value){
$param->$key = zhandi_iconv($value,$currCharset,$toCharset);
}
return $param;
}else{
return $param;
}
}
return $param;
}