if (!$U) return count($ListeDepts);

else return $ListeDepts[$U];

devient :

return ($u === '0') ? count($ListeDepts) : $ListeDepts[$u];

 

 

<?php

function getDept($U=false) {

		$ListeDepts = array (

			'1' => 'Ain',

			'2' => 'Aisne',

			'3' => 'Allier',

			'4' => 'Alpes de Hautes Provences',

			'5' => 'Hautes Alpes',

			'6' => 'Alpes Maritimes',

			'7' => 'Ardèche',

			'8' => 'Ardennes',

			'9' => 'Ariège',

			'10' => 'Aube',

			'11' => 'Aude',

			'12' => 'Aveyron',

			'13' => 'Bouches du Rhônes',

			'14' => 'Calvados',

			'15' => 'Cantal',

			'16' => 'Charente',

			'17' => 'Charente-Maritime',

			'18' => 'Cher',

			'19' => 'Corrèze',

			'2A' => 'Haute Corse',

			'2B' => 'Corse du Sud',

			'21' => 'Côte d'Or',

			'22' => 'Côtes d'Armor',

			'23' => 'Creuse',

			'24' => 'Dordogne',

			'25' => 'Doubs',

			'26' => 'Drôme',

			'27' => 'Eure',

			'28' => 'Eure & Loir',

			'29' => 'Finistère',

			'30' => 'Gard',

			'31' => 'Haute Garonne',

			'32' => 'Gers',

			'33' => 'Gironde',

			'34' => 'Hérault',

			'35' => 'Ille & Vilaine',

			'36' => 'Indre',

			'37' => 'Indre & Loire',

			'38' => 'Isère',

			'39' => 'Jura',

			'40' => 'Landes',

			'41' => 'Loir & Cher',

			'42' => 'Loire',

			'43' => 'Haute Loire',

			'44' => 'Loire Atlantique',

			'45' => 'Loiret',

			'46' => 'Lot',

			'47' => 'Lot & Garonne',

			'48' => 'Lozère',

			'49' => 'Maine & Loire',

			'50' => 'Manche',

			'51' => 'Marne',

			'52' => 'Haute Marne',

			'53' => 'Mayenne',

			'54' => 'Meurthe & Moselle',

			'55' => 'Meuse',

			'56' => 'Morbihan',

			'57' => 'Moselle',

			'58' => 'Nièvre',

			'59' => 'Nord',

			'60' => 'Oise',

			'61' => 'Orne',

			'62' =>	'Pas-de-Calais',

			'63' => 'Puy-de-Dôme',

			'64' => 'Pyrénées Atlantiques',

			'65' => 'Hautes Pyrénées',

			'66' => 'Pyrénées Orientales',

			'67' => 'Bas Rhin',

			'68' => 'Haut Rhin',

			'69' => 'Rhône',

			'70' => 'Haute Saône',

			'71' => 'Saone & Loire',

			'72' => 'Sarthe',

			'73' => 'Savoie',

			'74' => 'Haute Savoie',

			'75' => 'Ville de Paris',

			'76' => 'Seine Maritime',

			'77' => 'Seine & Marne',

			'78' => 'Yveline',

			'79' => 'Deux Sèvres',

			'80' => 'Somme',

			'81' => 'Tarn',

			'82' => 'Tarn & Garonne',

			'83' => 'Var',

			'84' => 'Vaucluse',

			'85' => 'Vendée',

			'86' => 'Vienne',

			'87' => 'Haute Vienne',

			'88' => 'Vosges',

			'89' => 'Yonne',

			'90' => 'Territoire de Belfort',

			'91' => 'Essonne',

			'92' => 'Hauts-de-Seine',

			'93' => 'Seine St Denis',

			'94' => 'Val de Marne',

			'95' => 'Val d'Oise',

 

			// Départements d'Outre-Mer

			'971' => 'Guadeloupe',

			'972' => 'Martinique',

			'973' => 'Guyane',

			'974' => 'Réunion',

 

			// Territoires d'Outre-Mer

			'975' => 'Saint-Pierre-et-Miquelon',

			'976' => 'Mayotte',

			'977' => 'Saint-Barthélémy',

			'978' => 'Saint-Martin',

			'986' => 'Wallis-et-Futuna',

			'987' => 'Polynésie française',

			'988' => 'Nouvelle-Calédonie'

 

		);

 

		if (!$U) return count($ListeDepts);

		elseif (is_numeric($U) OR $U == '2A' OR $U == '2B') return $ListeDepts[$U];

 

		return array_search($U,$ListeDepts);

}