$query = mysql_query("SELECT id_pg, slot_1, slot_2, slot_3, slot_4, slot_5 FROM backpacks JOIN pgs ON backpacks.id_pg = pgs.id");
$array = mysql_fetch_array($query);

$query_check = mysql_query ("SELECT id_equip, nome FROM equips");
$array_check = mysql_fetch_array($query_check);

$count = count($array);
?>
</head>

<body>
Il tuo Inventario: <br>
Slot 1: <?php
    for ($i = 0; $i < $count; $i++){
	if ($array_check[$i] == $array['slot_1'])
	echo $array_check['nome'];}?> <br>
Slot 2: <?php
    for ($i = 0; $i < $count; $i++){
	if ($array_check[$i] == $array['slot_2'])
	echo $array_check['nome'];}?>