variable checkbox list in php or html [closed]

I want to make a checkbox list from a list of files whose content would be variable.

<form method='POST' action='fenetre.php'>

    <?php

        $list = array_slice(scandir("./repertoire/tmp"), 2);

        foreach($list as $fichier){
            
        <input type="checkbox" name="chk[]" value="Selection"> <?php echo $fichier;?><br>

                                    }
    ?>

    </br>
    <input type="submit" name="submit" Value="Soumettre">
 
</form>

But I get the error

Parse error: syntax error, unexpected '<', expecting end of file

Thanks for your help