<form method="post" action="xhtml_inputsubmit.php"><div>

<input type="submit" name="nom1" value="val1" />

<input type="submit" name="nom1" value="val1 - 2" />

<input type="submit" name="nom2" value="val2" />

<input type="submit" value="val sans nom" />

<button type="submit">button 1 sans nom</button>

<button type="submit" value="valbutton2" name="nombutton2">button 2</button>

<button name="nombutton3" value="valbutton3">button 3 sans type</button>

<input type="image" name="nomimage" value="valeurimage" src="" />

<input type="image" name="nomimage2" value="valeurimage2" src="/images/logo_couleur_w3c.png" style="height:20px; width:40px;"/>

</div></form>

<?php print_r($_POST); ?>

Array
(
)