PHP为类设置值

Question

我有两个PHP类（DBOperations.php和functions.php）。现在我想在functions.php类中设置DBOperations.php类中的值。

class DBOperations{

    private $host = 'localhost';
    private $user = 'u';
    public $database;
    private $pass = 'p';
    private $conn;

public function __construct() {



    $this -> conn = new PDO("mysql:host=".$this -> host.";dbname=".$this -> database, $this -> user, $this -> pass);

    }
 public function doMagic() {
 //running mysql queries here
 }

和functions.php：

require_once 'DBOperations.php';

class Functions{

private $db;

public function __construct() {

       $this -> db = new DBOperations(); 
}
public function doThings($variable) {

  $db = $this -> db;
  //here I want to set the value $database from the DBOperations class to //$variable

有人可以帮忙吗？

关心弗朗西斯

Answer 1

您可以通过设置函数属性（如

）在functions.php类函数中定义它

public function doThings($variable) {

  $db = $this -> db;
   $this->db->database = 'dbname';
   // same for all variables if they are public
}