dynamic custom menu php - php

Question

trying to get some thing like that dynamically
<ul>
<li>Home</li>
<li>About Us</li>
<li>Academics
<ul style="overflow: hidden; display: block; height: 0px; z-index: 51; opacity: 0.00980392;">
<li>Bs Computer Science</li>
<li>Diplomas (DIT & DCHE)</li>
<li>MBAIT</li>
</ul>
</li>
<li><a class=" " href="#">College</a>
</ul>
the code is
<?php
//========================================================
$result = mysql_query(" SELECT id, parentId, name
FROM
menu
ORDER BY
parentId, name");
$menuData = array(
'items' => array(),
'parents' => array()
);
while ($menuItem = mysql_fetch_assoc($result))
{
$menuData['items'][$menuItem['id']] = $menuItem;
$menuData['parents'][$menuItem['parentId']][] = $menuItem['id'];
}
function buildMenu($parentId, $menuData)
{
$html = '';
if (isset($menuData['parents'][$parentId]))
{
$html = '<ul id="main_menu">';
foreach ($menuData['parents'][$parentId] as $itemId)
{
$html .= '<li>' . $menuData['items'][$itemId]['name'];
// find childitems recursively
$html .= buildMenu($itemId, $menuData);
$html .= '</li>';
}
$html .= '</ul>';
}
return $html;
}
// output the menu
echo buildMenu(0, $menuData);
//=======================================================
?>
above code is showing only first parents elements in the menu and the remaing elements are not showing.. the menu is not working correctly becoz of the class id is not given in the ul tag.. and by writing this
echo '<ul id="main_menu">';
// output the menu
echo buildMenu(0, $menuData);
echo "</ul>";
it shows nothing in the menu

Answer 1

Ok, try this:
<?php
//========================================================
$result = mysql_query(" SELECT id, parentId, name, link
FROM
menu
ORDER BY
parentId, name");
$menuData = array(
'items' => array(),
'parents' => array()
);
while ($menuItem = mysql_fetch_assoc($result)) {
$menuData['items'][$menuItem['id']] = $menuItem;
$menuData['parents'][$menuItem['parentId']][] = $menuItem['id'];
}
function buildMenu($parentId, $menuData)
{
$html = '';
if (isset($menuData['parents'][$parentId]) && count( $menuData['parents'][$parentId] ) > 0 ) {
if( $parentId == "0" ){
$html = '<ul id="main_menu">';
}else{
$html = '<ul id="sub_menu">';
}
foreach ($menuData['parents'][$parentId] as $itemId) {
$html .= '<li>';
$html .= strlen($menuData['items'][$itemId]['link']) > 2?
''.$menuData['items'][$itemId]['name'].'':
$menuData['items'][$itemId]['name'];
$html .= buildMenu($itemId, $menuData);
$html .= "</li>";
}
$html .= '</ul>';
} else {
$html .= '<li>' . $menuData['items'][$parentId]['name'].'</li>';
}
return $html;
}
// output the menu
echo buildMenu(0, $menuData);
//=======================================================
?>