Add HTML breaker with PHP if statement : I have a PHP loop listing results from a database:

    foreach($_SESSION['all'] as $result) {
    echo $result;
    }

What I have done is write an if statement in PHP so that every time 4 results have been outputted, execute a line of code. In order to do this I have declared '`$i = 0;`' outside of this loop and then inside the loop I have '`$i++;`'. I then say:

    if ($i %4 == 0) {
    //execute code inside this if statement
    }

I then put a breaker inside this loop so that every 4 results, there would be a breaker ('`<br />`'). It looks like this:

    if ($i %4 == 0){
    echo "<br />";
    echo $i;
    }

When I look at the source code of the site the '`<br />`' is there but it doesn't move the rest of the information to another line. When I add a different line of code it shows, for example, if I print '`<p>Hello</p>`', it outputs 'Hello'. It just seems to be the '`<br />`' that doesn't work. This results in all the results after the first 4 being off the end of the screen.

Here is the whole page and a screenshot of the output:

    <?php
    
    session_start();
    
    ?>
    
    <section class="hero is-dark is-halfheight is-bold">
    <div class="hero-head">
      
    </div>
    
      <div class="hero-body">
        
        <div class="container has-text-centered">
          
          <div class="columns">
          
          <?php
          
                  $i = 0;
                  
                  foreach($_SESSION['all'] as $result) {
                    
                  echo '<div class="column is-3">';
                  
                  echo '<a href="#">';
                  echo '<div class="box has-text-centered">';
                  echo $result;
                  echo '</div>';
                  echo '</a>';
                  
                  echo '</div>';
                  
                  $i++;
                  
                  if ($i %4 == 0){
                    
                    echo "<br />";
                    echo $i;
                  
                  }
                  
                  }
                  
          ?>
          
          </div>
          
        </div>
        
      </div>
      
    <div class="hero-foot">
      <?php echo $i; ?>
      <div class="container has-text-centered">
          <a class="button is-light is-small" href="add.php">
            Add Client
          </a>
        </div>
        <br>
    </div>
      
    </section>

And...

[Screenshot of output in browser][1]


  [1]: https://i.stack.imgur.com/5hu2M.png


Thanks in advance for any answers. Help will be greatly appreciated!