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<?php class A1 { public function rows() { $a = array(); $a[] = array('parent_id' => 10, 'category_id' => 13, 'name' => 'id13'); $a[] = array('parent_id' => 8, 'category_id' => 12, 'name' => 'id12'); $a[] = array('parent_id' => 7, 'category_id' => 11, 'name' => 'id11'); $a[] = array('parent_id' => 7, 'category_id' => 10, 'name' => 'id10'); $a[] = array('parent_id' => 0, 'category_id' => 9, 'name' => 'id9'); $a[] = array('parent_id' => 0, 'category_id' => 8, 'name' => 'id8'); $a[] = array('parent_id' => 0, 'category_id' => 7, 'name' => 'id7'); return $a; } } $query = new A1; $categoryArray = array(); foreach($query->rows() as $row) { if(isset($categoryArray[$row['category_id']])) { $categoryArray[$row['parent_id']][$row['category_id']]['name'] = $row['name']; $categoryArray[$row['parent_id']][$row['category_id']]['elements'] = $categoryArray[$row['category_id']]; unset($categoryArray[$row['category_id']]); } else { $categoryArray[$row['parent_id']][$row['category_id']]['name'] = $row['name']; } } echo "first stage \n"; print_r($categoryArray); // second stage echo "\n\n"; getCategory($categoryArray[0]); function getCategory($array){ foreach($array as $row){ print_r($row); /* if(isset($row['elements'])) { echo('<li>'.$row['name'].'<ul>'); getCategory($row['elements']); echo('</ul></li>'); } else { echo('<li>'.$row['name'].'</li>'); } */ } }
Output for git.master, git.master_jit, rfc.property-hooks
first stage Array ( [0] => Array ( [9] => Array ( [name] => id9 ) [8] => Array ( [name] => id8 [elements] => Array ( [12] => Array ( [name] => id12 ) ) ) [7] => Array ( [name] => id7 [elements] => Array ( [11] => Array ( [name] => id11 ) [10] => Array ( [name] => id10 [elements] => Array ( [13] => Array ( [name] => id13 ) ) ) ) ) ) ) Array ( [name] => id9 ) Array ( [name] => id8 [elements] => Array ( [12] => Array ( [name] => id12 ) ) ) Array ( [name] => id7 [elements] => Array ( [11] => Array ( [name] => id11 ) [10] => Array ( [name] => id10 [elements] => Array ( [13] => Array ( [name] => id13 ) ) ) ) )

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