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<?php $rows = [ [ 'id' => '1', 'file' => 'file_1_no_subfolder.doc', 'parent_id' => 0, ], [ 'id' => '2', 'file' => 'file_2_no_subfolder.doc', 'parent_id' => 0, ], [ 'id' => '3', 'file' => 'folder-1', 'parent_id' => 0, ], [ 'id' => '4', 'file' => 'folder-1_file_1.doc', 'parent_id' => 3, ], [ 'id' => '5', 'file' => 'folder-1_file_2.doc', 'parent_id' => 3, ], [ 'id' => '6', 'file' => 'folder-1_file_3.doc', 'parent_id' => 3, ], [ 'id' => '7', 'file' => 'folder-2', 'parent_id' => 0, ], [ 'id' => 8, 'file' => 'folder-2_file-1.doc', 'parent_id' => 7, ], [ 'id' => 9, 'file' => 'folder-2_file-1.doc', 'parent_id' => 7, ], [ 'id' => 10, 'file' => 'folder-2_file-1.doc', 'parent_id' => 7, ], ]; function buildTree(array $elements, $parentId = 0) { $branch = array(); foreach ($elements as $element) { if ($element['parent_id'] == $parentId) { $children = buildTree($elements, $element['id']); if ($children) { $element['children'] = $children; } $branch[] = $element; } } return $branch; } $tree = buildTree($rows); print_r( $tree );
Output for 8.1.1 - 8.1.34, 8.2.10 - 8.2.30, 8.3.0 - 8.3.4, 8.3.6 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
Array ( [0] => Array ( [id] => 1 [file] => file_1_no_subfolder.doc [parent_id] => 0 ) [1] => Array ( [id] => 2 [file] => file_2_no_subfolder.doc [parent_id] => 0 ) [2] => Array ( [id] => 3 [file] => folder-1 [parent_id] => 0 [children] => Array ( [0] => Array ( [id] => 4 [file] => folder-1_file_1.doc [parent_id] => 3 ) [1] => Array ( [id] => 5 [file] => folder-1_file_2.doc [parent_id] => 3 ) [2] => Array ( [id] => 6 [file] => folder-1_file_3.doc [parent_id] => 3 ) ) ) [3] => Array ( [id] => 7 [file] => folder-2 [parent_id] => 0 [children] => Array ( [0] => Array ( [id] => 8 [file] => folder-2_file-1.doc [parent_id] => 7 ) [1] => Array ( [id] => 9 [file] => folder-2_file-1.doc [parent_id] => 7 ) [2] => Array ( [id] => 10 [file] => folder-2_file-1.doc [parent_id] => 7 ) ) ) )
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Array ( [0] => Array ( [id] => 1 [file] => file_1_no_subfolder.doc [parent_id] => 0 ) [1] => Array ( [id] => 2 [file] => file_2_no_subfolder.doc [parent_id] => 0 ) [2] => Array ( [id] => 3 [file] => folder-1 [parent_id] => 0 [children] => Array ( [0] => Array ( [id] => 4 [file] => folder-1_file_1.doc [parent_id] => 3 ) [1] => Array ( [id] => 5 [file] => folder-1_file_2.doc [parent_id] => 3 ) [2] => Array ( [id] => 6 [file] => folder-1_file_3.doc [parent_id] => 3 ) ) ) [3] => Array ( [id] => 7 [file] => folder-2 [parent_id] => 0 [children] => Array ( [0] => Array ( [id] => 8 [file] => folder-2_file-1.doc [parent_id] => 7 ) [1] => Array ( [id] => 9 [file] => folder-2_file-1.doc [parent_id] => 7 ) [2] => Array ( [id] => 10 [file] => folder-2_file-1.doc [parent_id] => 7 ) ) ) )
preferences:
99.13 ms | 1030 KiB | 4 Q