這段代碼是ThinkPHP框架中的，感覺很常用，所以單獨拎出來，大家共同學(xué)習(xí)一下。
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function auto_charset($fContents,$from='''',$to='''')
{
??? if( strtoupper($from) === strtoupper($to) || empty($fContents) || (is_scalar($fContents) && !is_string($fContents)) ){
??????? //如果編碼相同或者非字符串標(biāo)量則不轉(zhuǎn)換
??????? return $fContents;
??? }
??? $from?? =? strtoupper($from)==''UTF8''? ''utf-8'':$from;
??? $to?????? =? strtoupper($to)==''UTF8''? ''utf-8'':$to;
??? if(is_string($fContents) ) {
??????????????? if(function_exists(''mb_convert_encoding'')){
??????????? return mb_convert_encoding ($fContents, $to, $from);
??????? }elseif(function_exists(''iconv'')){
??????????? return iconv($from,$to,$fContents);
??????? }else{
??????????? exit(''轉(zhuǎn)換失敗'');
??????????? return $fContents;
??????? }
??? }
??? elseif(is_array($fContents)){
??????? foreach ( $fContents as $key => $val ) {
??????????????????????? $_key =???????? auto_charset($key,$from,$to);
??????????? $fContents[$_key] = auto_charset($val,$from,$to);
??????????????????????? if($key != $_key ) {
???????????????????????????&