$cates = array( array( 'cid' => 1, 'cname' => '新闻', 'pid' => 0 ),
array( 'cid' => 2, 'cname' => '通知', 'pid' => 0 ),
array( 'cid' => 3, 'cname' => '国内新闻', 'pid' => 1 ),
array( 'cid' => 4, 'cname' => '国际新闻', 'pid' => 1 ),
array( 'cid' => 5, 'cname' => '北京新闻', 'pid' => 3 ),
array( 'cid' => 6, 'cname' => '上海新闻', 'pid' => 3 ),
array( 'cid' => 7, 'cname' => '紧急通知', 'pid' => 2 ),
array( 'cid' => 8, 'cname' => '一般通知', 'pid' => 2 ), );
/** * 生成菜单 * * @param array $data 原始数据 * @param integer $pid 当前分类的父id * @return array 处理后数据 */ function createMenuTree($data = array(), $pid = 0) { if (empty($data)) { return array(); }
static $level = 0;
$returnArray = array();
foreach ($data as $node) { if ($node['pid'] == $pid) { $returnArray[] = array( 'cid' => $node['cid'], 'cname' => $node['cname'], 'level' => $level );
if (hasChild($node['cid'], $data)) { $level++;
$returnArray = array_merge($returnArray, createMenuTree($data, $node['cid']));
$level--; } } }
return $returnArray; }
/** * 检查是否有子分类 * * @param integer $cid 当前分类的id * @param array $data 原始数据 * @return boolean 是否有子分类 */ function hasChild($cid, $data) { $hasChild = false;
foreach ($data as $node) { if ($node['pid'] == $cid) { $hasChild = true; break; } }
return $hasChild; }
header('Content-Type: text/html; charset=utf-8');
$result = createMenuTree($cates);
foreach ($result as $row) { for ($i = 0; $i { echo "t"; }
echo $row['cname'] . "n"; } ?>
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