[MySQL] Problème de lecture sur plusieurs tables simultanément

Bonjour à tous, merci d'avance du temps que vous prendrez pour m'aider.

Voilà, j'ai 4 tables dans lesquels je veux allez chercher plusieurs informations en même temps (Division, Catégorie, S_Cat et SS_Cat)

voici l'erreur en question :

Code:

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Warning: mysql_fetch_assoc(): supplied argument is not a valid MySQL result resource in /home/test.php on line 106
 
Warning: mysql_free_result(): supplied argument is not a valid MySQL result resource in /home/test.php on line 106
 
Warning: mysql_fetch_assoc(): supplied argument is not a valid MySQL result resource in /home/test.php on line 108
 
Warning: mysql_free_result(): supplied argument is not a valid MySQL result resource in /home/test.php on line 108
 
Warning: mysql_fetch_assoc(): supplied argument is not a valid MySQL result resource in /home/test.php on line 110
 
Warning: mysql_free_result(): supplied argument is not a valid MySQL result resource in /home/test.php on line 110
 
Warning: mysql_fetch_assoc(): supplied argument is not a valid MySQL result resource in /home/test.php on line 112
 
Warning: mysql_free_result(): supplied argument is not a valid MySQL result resource in /home/test.php on line 118

Voici le code:

Code:

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function division ($LANG) {
				global $database_dl, $dl, $DIVISION_ID, $ID_CAT, $ID_SCAT;
				mysql_select_db($database_dl, $dl);
				$query_divisionlist = "SELECT * FROM `__Division`  WHERE `__Division`.id_langue = ".$LANG." AND `__Division`.visible = 1";
				$divisionlist = mysql_query($query_divisionlist, $dl) or die(mysql_error());
				$row_divisionlist = mysql_fetch_assoc($divisionlist);
				$totalRows_divisionlist = mysql_num_rows($divisionlist);
		}
 
function cat ($DIVISION_ID, $LANG) {
				global $database_dl, $dl, $DIVISION_ID, $ID_CAT, $ID_SCAT;
				mysql_select_db($database_dl, $dl);
				$query_categorielist = "SELECT * FROM `__Produits_Cat` WHERE `__Produits_Cat`.id_Division = ".$DIVISION_ID." and `__Produits_Cat`.id_langue = ".$LANG." and `__Produits_Cat`.visible = 1";
				$categorielist = mysql_query($query_categorielist, $dl) or die(mysql_error());
				$row_categorielist = mysql_fetch_assoc($categorielist);
				$totalRows_categorielist = mysql_num_rows($categorielist);
		}
 
function scat ($ID_CAT,$LANG) {
				global $database_dl, $dl, $DIVISION_ID, $ID_CAT, $ID_SCAT;
				mysql_select_db($database_dl, $dl);
				$query_scategorie = "SELECT * FROM `__Produits_Sous_Cat` WHERE `__Produits_Sous_Cat`.id_Produit_Cat = ".$ID_CAT." AND `__Produits_Sous_Cat`.id_langue = ".$LANG." AND `__Produits_Sous_Cat`.visible = 1";
				$scategorie = mysql_query($query_scategorie, $dl) or die(mysql_error());
				$row_scategorie = mysql_fetch_assoc($scategorie);
				$totalRows_scategorie = mysql_num_rows($scategorie);
		}
 
function sscat ($ID_SCAT, $LANG) {
				global $database_dl, $dl, $DIVISION_ID, $ID_CAT, $ID_SCAT;
				mysql_select_db($database_dl, $dl);
				$query_sscategorie = "SELECT * FROM `__Produits_Sous_sousCat`  WHERE `__Produits_Sous_sousCat`.id_Produit_Sous_Cat = ".$ID_SCAT." AND `__Produits_Sous_sousCat`.id_langue = ".$LANG." AND `__Produits_Sous_sousCat`.visible = 1";
				$sscategorie = mysql_query($query_sscategorie, $dl) or die(mysql_error());
				$row_sscategorie = mysql_fetch_assoc($sscategorie);
				$totalRows_sscategorie = mysql_num_rows($sscategorie);
		}
?>
 
  <?php 
		$LANG = 1;
		division(1);  
  		do { ?>
		<p><?php echo $row_divisionlist['titre']; ?></p>
	    <? cat($row_divisionlist['id'],$LANG); ?>
 
		  		<?php do { ?>
 
			     		<p><?php echo $row_categorielist['titre']; ?></p>
		         		<? scat($row_categorielist['id'],$LANG); ?>
 
		  				<?php do { ?>
 
			     				<p><?php echo $row_scategorie['titre']; ?></p>
		         				<? sscat($row_scategorie['id'],$LANG); ?>
 
								<?php do { ?>
 
      									<p><?php echo $row_sscategorie['titre']; ?></p>
 
		   						<?php } while ($row_sscategorie = mysql_fetch_assoc($sscategorie)); mysql_free_result($sscategorie);?>
 
		   				<?php } while ($row_scategorie = mysql_fetch_assoc($scategorie)); mysql_free_result($scategorie); ?>
 
		   		<?php } while ($row_categorielist = mysql_fetch_assoc($categorielist)); mysql_free_result($categorielist);?>
 
		<?php } while ($row_divisionlist = mysql_fetch_assoc($divisionlist)); ?>  
 
 
</body>
</html>
<?php
mysql_free_result($divisionlist);

Merci de votre aide