I have a problem with drop down menu using twitter bootstrap. In my database I have table called categories. In it I have 8 records:
ID | Category | parent
1 | Apple | 0
2 | Samsung | 0
3 | Huawei | 0
4 | Others | 0
5 | Sony | 4
6 | LG | 4
7 | Lenovo | 4
8 | Nokia | 4
By using this data I have created a navbar. However I have this problem: Since 'others' have parent, they appear in their parents dropdown. Apple, Samsung and Huawei does not have any children so I would like them to not have a dropdown at at all. However my code generates an empty dropdown for these categories.
<body>
<?php
$sql = "SELECT * FROM categories WHERE parent = 0";
$pquery = $db->query($sql);
?>
<nav class="navbar navbar-default navbar-fixed-top" id="navbar">
<div class="container">
<a href="/e-shop/index.php" class="navbar-brand" id="logo">Mobile e-shop</a>
<ul class="nav navbar-nav">
<?php while($parent = mysqli_fetch_assoc($pquery)) : ?>
<?php
$parent_id = $parent['id'];
$sql2 = "SELECT * FROM categories WHERE parent = '$parent_id' ";
$cquery = $db->query($sql2);
?>
<!-- Drop down meniu -->
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown" id="text"><?php echo $parent['kategorija']; ?><span class="caret"></span></a>
<ul class="dropdown-menu" role="menu">
<?php while($child = mysqli_fetch_assoc($cquery)) : ?>
<li>
/*I assume i should do if statement or something here to check is its null? I tryied to use is_null() but it did not work for me*/
<a href="<?=$child['adresas']; ?>">
<?php echo $child['kategorija'] ?>
</a>
</li>
<?php endwhile; ?>
</ul>
</li>
<?php endwhile; ?>
</ul>
</div>
</nav>I assume i should do if statement or something to check is its null? I tryied to use is_null() but it did not work for me.
</div>
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