Comment gére un boutton supprimer en php

<?php
$nom =is_int($_GET['Id_cli']) ? $_GET['Id_cli'] : false;
if($nom){
$dbh->query('DELETE FROM client WHERE Id_cli=' . $nom);
}
 
$reponse =$dbh->query("SELECT Id_cli, nom_cli,
adress FROM client");
 
 header('location:client.php');
?>

<td>
<a  name="Id_cli"onclick="return confirm('etes vous sur de vouloir supprimer') " href="supprimerclient.php?Id_cli=<?php echo $client['Id_cli'] ?>">
<span class="glyphicon glyphicon-trash"></span>
</a><
/td>