DB_NestedSet::isParent
DB_NestedSet::isParent() – See if a given node is a parent of another given node
Synopsis
require_once 'DB/NestedSet.php';
bool
DB_NestedSet::isParent
(
mixed
$parent
,
mixed
$child
)
Description
A node is considered to be a parent if it resides above the child So it doesn't mean that the node has to be an immediate parent. To get this information simply compare the levels of the two nodes after you know that you have a parent relation.
Parameter
-
mixed
$parent -
The parent node as array or object
-
mixed
$child -
The child node as array or object
Return value
returns True if it's a parent
Throws
throws no exceptions thrown
Note
This function can not be called statically.
Example
IsParent
<?php
require_once('DB/NestedSet.php');
$nestedSet =& DB_NestedSet::factory('DB', $dsn, $params);
$parent = $nestedSet->createRootNode(array('name' => 'root-node'));
$node = $nestedSet->createSubNode($parent, array('name' => 'sub1'));
$boolparent = $nestedSet->isParent($parent, $node);
?>