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| <?php
$arr=[
['id' => 1, 'text' => 'Parent 1', 'pid' => 0],
['id' => 2, 'text' => 'Parent 2', 'pid' => 0],
['id' => 3, 'text' => 'Parent 3', 'pid' => 0],
['id' => 4, 'text' => 'Child 1', 'pid' => 1],
['id' => 5, 'text' => 'Parent 4', 'pid' => 0],
['id' => 6, 'text' => 'Child 2', 'pid' => 1],
['id' => 7, 'text' => 'Child 3', 'pid' => 1],
['id' => 8, 'text' => 'Parent 5', 'pid' => 0],
['id' => 9, 'text' => 'Child 1', 'pid' => 2],
['id' => 10, 'text' => 'Child 4', 'pid' => 1],
['id' => 11, 'text' => 'Child 1', 'pid' => 5],
['id' => 12, 'text' => 'GrandChild 1', 'pid' => 10]
];
class createTree {
private static $table = [];
private function __construct() {}
private static function tree($pid = 0) {
$tree = array();
foreach (self::$table as $row) {
if ($row['pid'] === $pid) {
$tmp = self::tree($row['id']);
if ($tmp) {
$row['children'] = $tmp;
}
$tree[] = $row;
}
}
return $tree;
}
public static function get($table) {
self::$table = $table;
return self::tree();
}
}
var_dump(createTree::get($arr));
|