i have written this code

```
  <?php
        $a = Meme::all();
        $b = count($a);
        for($i=$b;$i<$b-3;$i--)  {
    ?>      <div class="col-sm-6"><img class="lazy" data-src="<?php echo $a[$i]->path; ?>" /> </div>
    <?php
    }?> 

```

i want to output the last 3 memes(images) but this for loop doesn't work. So i found something that is called array\_slice and i wanted to use it but everyone was using print\_r but in this case i don't need it. So any suggestions?