Simplified php code for displaying results - php

Question

Sorry if this have been asked before but I couldn't find what I wanted and I am not strong in PHP.
Right now I have this code, which is supposed to return result for different levels:
<div class="swiper-slide">
<img src="img/B1.jpg" alt="" />
<div class="content_container">
<?php
$result = mysqli_query($con,"SELECT * FROM floor_directory WHERE level='B1'");
while($row = mysqli_fetch_array($result))
{
?>
<h1><?php echo $row['categories']; ?></h1>
<ul class="shop_listing clearfix">
<li class="float_left"><?php echo $row['name']; ?></li>
<li class="float_right"><?php echo $row['unit_number']; ?></li>
</ul>
<?php
}
?>
</div>
</div>
<div class="swiper-slide">
<img src="img/L1.jpg" alt="" />
<div class="content_container">
<?php
$result = mysqli_query($con,"SELECT * FROM floor_directory WHERE level='L1'");
while($row = mysqli_fetch_array($result))
{
?>
<h1><?php echo $row['categories']; ?></h1>
<ul class="shop_listing clearfix">
<li class="float_left"><?php echo $row['name']; ?></li>
<li class="float_right"><?php echo $row['unit_number']; ?></li>
</ul>
<?php
}
?>
</div>
</div> and so on...
Right now I can only duplicate it in order to fulfil the displaying of result for each individual levels. If let's say the building have 10 levels, is there a way to simplified the coding?
Hope you guys understand. Thanks in advance! =)

Answer 1

Try this:
<?php
$levelArray=array('L1','B1','L2','B2');
foreach ($levelArray as $i=>$level) {
$data='';
$img = "img/".$levelArray[$i];
$result = mysqli_query($con,"SELECT * FROM floor_directory WHERE level='$levelArray[$i]'");
while($row = mysqli_fetch_array($result)){
$data .= '<h1>'.$row['categories'].'</h1>
<ul class="shop_listing clearfix">
<li class="float_left">'.$row['name'].'</li>
<li class="float_right">'.$row['unit_number'].'</li>
</ul>';
}
echo '<div class="swiper-slide">
<img src="'.$img.'" alt="" />
<div class="content_container">'.$data.'</div>
</div>'
}
?>