php - Tree menu - 4 levels -

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i have website 4 level menu structure: sections (in sections tabel), categories (in categories tabel, section_id pointing sections) , pages (in tabel pages have parent_id because page can child of page, , each page belong section).

how can build menu? (i use php , mysql) use 4 nested queries. first select sections, each section select categories, , categories select pages without parent, , each page select child pages.

also can use 1 query (with right join) array section_id, category_id, page_id, parent_id. don't know how convert array tree array.

use this class convert query tree array.

an example of use.

it's simple :

$sql_query = "select field1, field2 table field3='val1' , field4=5 or field5='val2';";  $query2tree = new dqml2tree($sql_query); $sql_tree = $query2tree->make();  print_r($sql_tree);

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