Question

I have a search query as

$sql="SELECT user_id,user_name,user_occupation FROM profile WHERE user_email LIKE '%peace%'";

$result=mysql_query($sql);
$jsonResult = '{"results" : [ ';
while ($data=mysql_fetch_assoc($result))
{
$jsonResult .=json_encode($data).',';
}
$jsonResult .= ']}';

echo $jsonResult;

After referring How to remove last comma (,) from array? , i added

$sql="SELECT user_id,user_name,user_occupation FROM profile WHERE user_email LIKE '%peace%'";

$result=mysql_query($sql);
$jsonResult = '{"results" : [ ';
while ($data=mysql_fetch_assoc($result))
{
$jsonResult .=json_encode($data).',';
}
$jsonResult .= ']}';

$finalResult = rtrim(',',$jsonResult);
echo $finalResult;

This gives me an output as …

{"results" : [ {"user_id":"2","user_name":"peace","user_occupation":"Web Developer"},  
               {"user_id":"3","user_name":"lover","user_occupation":"Web Developer"}
               {"user_id":"4","user_name":"User4","user_occupation":"Developer"},
               {"user_id":"5","user_name":"User5","user_occupation":"Developer"},]}

I want to remove the last comma from the results array

Answer 1

Do like this

$result=mysql_query($sql);
$jsonResult = '{"results" : [ ';
$i=0;
while ($data=mysql_fetch_assoc($result)) {
   if($i != 0){
       $jsonResult .=',';
   }
   $jsonResult .=json_encode($data);
   i++;
}
$jsonResult .= ']}';