PHPize Online / SQLize Online  /  SQLtest Online

<?php Class Database { } Class Team extends Database { private $dbConnection; function __construct($db) { $this->dbConnection = $db; } public function getDownline($id, $depth=5) { $stack = array([$id]); for($i=1; $i<=$depth; $i++) { echo $i.PHP_EOL; // create an array of levels, each holding an array of child ids for that level $stack[$i] = $this->getChildren($stack[$i-1]); } return $stack; } public function countLevel($level) { // expects an array of child ids settype($level, 'array'); return sizeof($level); } private function getChildren($parent_ids = array()) { var_dump($parent_ids); $results = array(); $placeholders = str_repeat('?,', count($parent_ids) - 1). '?'; $sql="select id from users where pid in ($placeholders)"; $stmt=$this->dbConnection->prepare($sql); $stmt->execute($parent_ids); while($row=$stmt->fetch()) { $results[] = $row["id"]; } return $results; } } $getTeam = new Team($pdo); $id = 1; $depth = 2; // get the counts of his downline, only 2 deep. $downline_array = $getTeam->getDownline($id, $depth=2); echo "Results: "; var_dump($downline_array);