How to Show row number for every row fetched from mysql - php

Question

I want to show row number for every row fetched from database. can someone help me to do this.
My Code to fetch rows is:
$query="
select id
, title
, description
, url,votes
from posts
order
by votes desc
";
$result = $mysqli->query($query) or die($mysqli->error.__LINE__);
$arr = array();
if($result->num_rows > 0) {
while($row = $result->fetch_assoc()) {
$arr[] = $row;
}
}
# JSON-encode the response
$json_response = json_encode($arr);
// # Return the response
echo $json_response;
My code displays post, title, post votes and post controls (Vote up or Down).
I want to show row number for every row fetched.
My Code to Display posts is:
<ul class="thumbnails" ng-controller="votingCtrl">
<li ng-repeat="post in posts" class="clearfix">
<div class="col-md-1 voting well">
<div class="votingButton" ng-click="upVote(post);">
<i class="glyphicon glyphicon-chevron-up"></i>
</div>
<div class="badge badge-inverse">
<div>{{post.votes}}</div>
</div>
<div class="votingButton" ng-click="downVote(post);">
<i class="glyphicon glyphicon-chevron-down"></i>
</div>
</div>
<div class="well col-md-11">
<h4>{{post.title}}</h4>
<p>{{post.description}}</p>
</div>
</li>
</ul>
Thanks

Answer 1

try to use ROW_NUMBER() mysql function
select id,title,description,url,votes, ROW_NUMBER() OVER (ORDER BY votes DESC) as row_num from posts order by votes desc

Answer 2

With the current logic, row number can be displayed using {{post.id}} as the SELECT query fetches id along with votes as fields.
In the loop itself, we can display a custom counter like:
$arr = array();
$cntr = 0;
if ($result->num_rows > 0) {
while($row = $result->fetch_assoc()) {
++$cntr;
$row['cntr'] = $cntr;
$arr[] = $row;
}
}
And in view template, you can use {{post.cntr}}.

Answer 3

SELECT
(#row_number:=#row_number + 1) AS num,
id,
title
FROM
Test,
(SELECT #row_number:=0) AS t
LIMIT 5;
Please try above its tested it will work, only need to replace your query with that.