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POPHP dynamic multidimensional array or objects
 

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  1. POPHP dynamic multidimensional array or objects
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    <p>I'm trying to create a recursive function (or method) that stores a sub-tiered navigation in an array variable or object. Here is what I have:</p> <pre> class Navigation extends Database { function build($parent_id = 0) { $query = 'SELECT id, name, href, parent_id FROM navigation WHERE parent_id = '.$parent_id.' ORDER BY name'; $results = $db->query($query); while ($row = $results->fetch_object()) { $nav[$row->id] = $row; // echo $row; $this->build($row->id); } return $nav; } } </pre> <p>If you comment out the <code>echo $row</code> everything works fine. So what I want it to do in a three tier navigation is this:</p> <pre> Array ( [1] => stdClass Object ( [id] => 1 [name] => Home [href] => home.php [parent_id] => 0 ) [2] => stdClass Object ( [id] => 2 [name] => Company [href] => company.php [parent_id] => 0 ) [4] => stdClass Object ( [id] => 4 [name] => Company Vision [href] => company_vision.php [parent_id] => 2 ) [5] => stdClass Object ( [id] => 5 [name] => Company Goals [href] => company_goals.php [parent_id] => 2 ) [3] => stdClass Object ( [id] => 3 [name] => Products [href] => products.php [parent_id] => 0 ) [6] => stdClass Object ( [id] => 6 [name] => Products Shoes [href] => products_shoes.php [parent_id] => 3 ) [7] => stdClass Object ( [id] => 7 [name] => Nike [href] => products_shoes_nike.php [parent_id] => 6 ) ) </pre> <p>Just as an example, so the array would dynamically do this:</p> <pre> $nav[$row->id] = $row; // Home $nav[$row->id] = $row; // Company $nav[2][$row->id] = $row; // Company Vision $nav[2][$row->id] = $row; // Company Goals $nav[$row->id] = $row; // Products $nav[3][$row->id] = $row; // Products Shoes $nav[3][6][$row->id] = $row; // Products Shoes Nike </pre> <p>Thanks in advance.</p> <p>Question: How do you make a recursive function/method and store the recursive information in a variable rather than echoing the results?</p> <p>Issues: (a) PHP overwrites the variable every time it calls itself recursively (b) A solution would be dynamically creating an array on the fly, but I don't know if that is possible</p>
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    1. COMaybe I failed to understand you, but are you having any problem?
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    2. COGot a question in there?
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    3. COA bit off-topic, but I'd make it a single select with sorting by parent ID in application (that is if you have a single menu starting at 0)
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