Question

I am having a problem with the last comma when I am using PHP echoing JSON Array to android

Here is my code

If ($commentResult>0) 
echo "[";
    { 
    while ($row = mysql_fetch_array($commentResult)) {

    echo json_encode($row).",";
    }
echo "]";

Android can’t read this, it printed out JSONException:Vale at 3 is null

Answer 1

Why are you trying to re-invent the wheel? If you want to give an entire array then put json_encode over the entire array instead of trying to manually build it.

$comments=array();
if($commentResult>0){
    while($row=mysql_fetch_array($commentResult)){
        $comments[]=$row;
    }
}
echo json_encode($comments);

*Also, a side tip, don’t use mysql_ functions. Instead use PDO or mysqli, which are better supported and get you rid of this whole while($row) business.*