exIconv()支持数组递归转码

/**
 * 支持数组方式递归转换的iconv
 * @author Wilson Zeng | wilsonzeng@ppstream.com | jackzcs@gmail.com
 * @param unknown_type $inCharset
 * @param unknown_type $outCharset
 * @param unknown_type $strArr
 */
function exIconv($inCharset, $outCharset, $strArr) {
	if (is_array($strArr)) {
		$returnArr = array();
		foreach ($strArr as $key => $str) {
			$returnArr[$key] = exIconv($inCharset, $outCharset, $str);
		}
		return $returnArr;
	} else {
		return iconv($inCharset, $outCharset, $strArr);
	}
}