How to build JSON format and new array in php

function RecordToJson($recordset)
{
$jstr='[';
while($rs = $recordset->Fetch())
{
//$nick = iconv ("GBK",'utf-8',$rs['nick']);/*Convert to utf-8 encoding*/
//TODO: Traverse the result set
$arr_keys=array_keys($rs);
$ jstr=$jstr.'{';
for($i=0;$i{
//The database encoding is gbk, the encoding needs to be converted
//TODO;iconv ("GBK",'utf-8',$rs['nick']);/*Convert to utf-8 encoding*/
$key=iconv("GBK",'utf-8',$arr_keys[$ i]);//$arr_keys[$i];
$value=iconv("GBK",'utf-8',$rs[$arr_keys[$i]]);//$rs[$arr_keys[$ i]];
$jstr=$jstr.'"'.$key.'":"'.$value.'",';
}
$jstr=substr($jstr,0,strlen($jstr) -1);
$jstr=$jstr.'},';
}
$jstr=substr($jstr,0,strlen($jstr)-1);
$jstr=$jstr.']';
 return $jstr;
}

php’s default result set array has a numeric index. The following function can remove the numeric index and only keep the field index:

function RebuilderRecord( $recordset)
{
$row=0;
while($rs = $recordset->Fetch())
{
//TODO: Traverse the result set
$arr_keys=array_keys($rs);
for($ i=0;$i
{
$newrs[$row][$arr_keys[$i]]=$rs[$arr_keys[$i]];
}
 $row++;
}
return $newrs;
}