Il te suffit de tester si l'url que tu met en href est identique ou non à l'url courante.

au passage, tes else{null;} sont inutile, ils peuvent être supprimé

<!-- Fil d'ariane -->
<div id="position">
    	<div class="container">
                 <ul>
                  <?php
                  // Région
                  if (!empty($_REQUEST['region'])) {
                  echo '<li class="home"><a href="/tripday/sortie/region-'.simplification($_REQUEST['region']).'.html" title="sortir en '.$aRegion[$region_id].'">'.$aRegion[$region_id].'</a></li>';
                  }else{NULL;}
                  // Département
                  if (!empty($_REQUEST['departement'])) {
                  echo '<li class="category1599"><a href="sorties-du-'.$_REQUEST['departement'].'.html" title="sortir en '.ucfirst($depts[$_REQUEST['departement']]).' ('.$_REQUEST['departement'].')">'.ucfirst($depts[$_REQUEST['departement']]).'</a> </li>';
                  }else{NULL;}
                   if (!empty($_REQUEST['region']) && !empty($_REQUEST['loisir']) && empty($_REQUEST['departement']) && empty($_REQUEST['ville'])){
                  echo '<li class="category1599"><a href="/tripday/sortie/region-'.simplification($_REQUEST['region']).'/activite-'.simplification($_REQUEST['loisir']).'.html" title="'.ucfirst($_REQUEST['loisir']).' en '.$aRegion[$region_id].'">'.ucfirst($_REQUEST['loisir']).'</a></li>';
                  }else{NULL;}
                  // Loisir
                  if (!empty($_REQUEST['loisir']) && !empty($_REQUEST['region']) && !empty($_REQUEST['departement'])){
                  echo '<li class="category1600"><a href="/tripday/sortie/region-'.simplification($_REQUEST['region']).'/activite-'.simplification($_REQUEST['loisir']).'/sorties-du-'.$_REQUEST['departement'].'.html" title="'.$_REQUEST['loisir'].' en '.$aRegion[$region_id].'">'.ucfirst($_REQUEST['loisir']).'</a></li>';
                  }else{NULL;}
                  if (!empty($_REQUEST['loisir']) && !empty($_REQUEST['region']) && !empty($_REQUEST['ville'])){
                  echo '<li class="category1600"><a href="/tripday/sortie/region-'.simplification($_REQUEST['region']).'/ville-de-'.simplification($_REQUEST['ville']).'/activite-'.simplification($_REQUEST['loisir']).'.html" title="'.ucfirst($_REQUEST['loisir']).' à '.ucfirst($_REQUEST['ville']).'">'.ucfirst($_REQUEST['loisir']).'</a></li>';
                  }else{NULL;}
                  // ville
                  if (!empty($_REQUEST['ville'])) {
                  echo '<li class="category1600"><a href="/tripday/sortie/region-'.simplification($_REQUEST['region']).'/ville-de-'.simplification($_REQUEST['ville']).'.html" title="sortie '.ucfirst($_REQUEST['ville']).'">Où sortir à '.ucfirst($_REQUEST['ville']).'</a></li>';
                  }else{NULL;}
                  ?>
                  </ul>
        </div>
    </div>
<!-- End Fil d'ariane -->

Salut à tous.
Voilà j'essai de faire un fil d'ariane. Bon apparament ça marche.
Mais j'aimerais faire en sorte que le dernier élément affiché ne soit pas cliquable ( qu'il n'y est pas de lien en gros)
Comment procéder svp ?


[php]<!-- Fil d'ariane -->
<div id="position">
<div class="container">
<ul>
<?php
// Région
if (!empty($_REQUEST['region'])) {
echo '<li class="home"><a href="/tripday/sortie/region-'.simplification($_REQUEST['region']).'.html" title="sortir en '.$aRegion[$region_id].'">'.$aRegion[$region_id].'</a></li>';
}else{NULL;}
// Département
if (!empty($_REQUEST['departement'])) {
echo '<li class="category1599"><a href="sorties-du-'.$_REQUEST['departement'].'.html" title="sortir en '.ucfirst($depts[$_REQUEST['departement']]).' ('.$_REQUEST['departement'].')">'.ucfirst($depts[$_REQUEST['departement']]).'</a> </li>';
}else{NULL;}
if (!empty($_REQUEST['region']) && !empty($_REQUEST['loisir']) && empty($_REQUEST['departement']) && empty($_REQUEST['ville'])){
echo '<li class="category1599"><a href="/tripday/sortie/region-'.simplification($_REQUEST['region']).'/activite-'.simplification($_REQUEST['loisir']).'.html" title="'.ucfirst($_REQUEST['loisir']).' en '.$aRegion[$region_id].'">'.ucfirst($_REQUEST['loisir']).'</a></li>';
}else{NULL;}
// Loisir
if (!empty($_REQUEST['loisir']) && !empty($_REQUEST['region']) && !empty($_REQUEST['departement'])){
echo '<li class="category1600"><a href="/tripday/sortie/region-'.simplification($_REQUEST['region']).'/activite-'.simplification($_REQUEST['loisir']).'/sorties-du-'.$_REQUEST['departement'].'.html" title="'.$_REQUEST['loisir'].' en '.$aRegion[$region_id].'">'.ucfirst($_REQUEST['loisir']).'</a></li>';
}else{NULL;}
if (!empty($_REQUEST['loisir']) && !empty($_REQUEST['region']) && !empty($_REQUEST['ville'])){
echo '<li class="category1600"><a href="/tripday/sortie/region-'.simplification($_REQUEST['region']).'/ville-de-'.simplification($_REQUEST['ville']).'/activite-'.simplification($_REQUEST['loisir']).'.html" title="'.ucfirst($_REQUEST['loisir']).' à '.ucfirst($_REQUEST['ville']).'">'.ucfirst($_REQUEST['loisir']).'</a></li>';
}else{NULL;}
// ville
if (!empty($_REQUEST['ville'])) {
echo '<li class="category1600"><a href="/tripday/sortie/region-'.simplification($_REQUEST['region']).'/ville-de-'.simplification($_REQUEST['ville']).'.html" title="sortie '.ucfirst($_REQUEST['ville']).'">Où sortir à '.ucfirst($_REQUEST['ville']).'</a></li>';
}else{NULL;}
?>
</ul>
</div>
</div>
<!-- End Fil d'ariane -->[/php]