what can be the reasons for backspace not working in php? [closed]

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<?php
echo "hello\x08";
?>

the out put to this is coming as

hello

I am working on xampp as localhost

$reply='{';
        while($row=$this->conx->fetch_array($result)){
            $user=new user();
            $fullname=$user->get('fullname','id',$row['posted_by']);
            $now=getdat($row['posted_on']);
            $reply.='"count'.$count.'":{"id":'.$row['post_id'].',"user":"'.$fullname['fullname'].'","msg":"'.$row['msg'].'","at":"'.$now.'"},';
        }
        $reply.='}';
    return $reply;}

How can I remove the last ',' from reply?

Answer 1

Give this a try.

  $reply = rtrim($reply,",");

Using your example

$reply='{';
        while($row=$this->conx->fetch_array($result)){
            $user=new user();
            $fullname=$user->get('fullname','id',$row['posted_by']);
            $now=getdat($row['posted_on']);
            $reply.='"count'.$count.'":{"id":'.$row['post_id'].',"user":"'.$fullname['fullname'].'","msg":"'.$row['msg'].'","at":"'.$now.'"},';
        }
        $reply.='}';
    return rtrim($reply,",");}