I need to write a recursive function to search through a set of parent and children link headers, then get the names of embedded key values per header. Ex. Clothing->Men->Shoes. Now, each category has an unknown number of values attached to them. I have a function that can successfully echo all of these values recursively through the parents. But when I try to get the return value from the function, it's missing some, and I can't understand why : /.
Code is below
public function getFamilies($cat){
$objCurrentCategory = Category::Load($cat); // creates a QCodo object of the passed category ID.
$str_Query = "SELECT DISTINCT p.family
FROM xlsws_product p, xlsws_product_category_assn pc
WHERE p.rowid=pc.product_id
AND pc.category_id=".$cat; // sql query to retrieve all Families relating to this category.
$objFamilyDb = Family::GetDatabase(); // retrieves the QCodo database object for Family to execute queries against.
$objFamilies = Family::InstantiateDbResult($objFamilyDb->Query($str_Query)); // executes the query and saves the result.
foreach($objFamilies as $family){ // for each family returned, get the family name and add it to the array of names.
if ($family->Family !== ""){
$families [] = $family->Family;
}
}
if ($objCurrentCategory->ChildCount > 0){ // if current category has children, create a list of all children rowids.
$str_Query = "SELECT rowid FROM xlsws_category
WHERE parent=".$objCurrentCategory->Rowid; // query to get all children of the category.
$objChildCategoriesDb = Category::GetDatabase(); // retrieves the QCodo database object for Category to execute queries against.
$objChildCategories = Category::InstantiateDbResult($objChildCategoriesDb->Query($str_Query)); // executes the query and saves the result.
foreach($objChildCategories as $child){ // passes through the children to get their families.
//$families [] = KG::getFamilies($child->Rowid);
$childFam = KG::getFamilies($child->Rowid);
}
}
$compiled = KG::compileFamilies($childFam); // helper function, not important.
foreach($compiled as $compile){
$families[] = $compile;
}
foreach($families as $familyt){ // this echo statement correctly displays all names.
//echo ":".$familyt."<br />";
}
return $families;
}
So this displays all the names through echo to the screen during the functions run, and the array WITHIN the function can be echo'd to the screen as well. But when I try to return all of the names from returned result in another page, I'm missing a bunch of names.
EDIT It looks like the $families variable is not persisting through each recursive call to getFamilies, and is only returning the children at the end, instead of the children and all their parents.
