Table pagination, content is not showing in php - php

Question

enter image description hereThe problem is the content of my table is not showing. It is counting and show the the equal row from my database but no content is showing. Can you please help me?
index.php
<?php
include('db.php');
$limit = 2;
if (isset($_GET["page"])) { $page = $_GET["page"]; } else { $page=1; };
$start_from = ($page-1) * $limit;
$sql = "SELECT * FROM sales_order ORDER BY `so_id` ASC LIMIT $start_from, $limit";
$rs_result = mysqli_query($conn, $sql);
?>
<table class="table table-bordered table-striped">
<thead>
<tr>
<th>title</th>
<th>body</th>
</tr>
<thead>
<tbody>
<?php
while ($row = mysqli_fetch_assoc($rs_result)) {
?>
<tr>
<td><? echo $row["so_customer"]; ?></td>
<td><? echo $row["so_address"]; ?></td>
</tr>
<?php
};
?>
</tbody>
</table>
<?php
$sql = "SELECT COUNT('so_id') FROM sales_order";
$rs_result = mysqli_query($conn, $sql);
$row = mysqli_fetch_row($rs_result);
$total_records = $row[0];
$total_pages = ceil($total_records / $limit);
$pagLink = "<div class='pagination'>";
for ($i=1; $i<=$total_pages; $i++) {
$pagLink .= "<a href='index.php?page=".$i."'>".$i."</a>";
};
echo $pagLink . "</div>"; ?>

Answer 1

There are few things wrong left over from your edited question earlier, most particularly this one where you changed the single quotes from ORDER BY 'so_id' to using backticks:
ORDER BY `so_id`
More on what are called "Identifier Qualifiers" can be seen in the following reference:
https://dev.mysql.com/doc/refman/8.0/en/identifier-qualifiers.html
Then about <? echo. Those are what are called short tags and if they're unabled, you need to change them to <?php echo or <?= which also does the same.
Then your quotes in COUNT('so_id'). Either remove them or replace them with backticks.
COUNT(`so_id`)
Finally; you're going to receive undefined index notices for these as soon as the page is loaded:
<td><? echo $row["so_customer"]; ?></td>
<td><? echo $row["so_address"]; ?></td>
Therefore and to avoid / fix those errors, replace them with the following:
<td><?php if(isset($row['so_customer'])){ echo $row["so_customer"]; } ?></td>
<td><?php if(!empty($row['so_address'])){ echo $row["so_address"]; }?></td>
Enabling error reporting for the PHP and error handling for the MySQL, would have been of help during development/debugging.
http://php.net/manual/en/function.error-reporting.php
http://php.net/manual/en/mysqli.error.php