Feeling stupid... PHP variable scope

[Joan M]

Hi all, Years since the last PHP code I wrote... I want to access a MYSQL database. It works... But, now I want to be able to use that database connection/pointer from all my other files... In my database connection file I have:

$BDD = new cBDD();

class cBDD
{
var $BDDptr;

function \_\_construct()
{
	$servername = "xxx.xxx.xxx.xxx:yyyy";
	$username = "user";
	$password = "pwd";
	$dbname = "databaseName";

	$this->BDDptr = new mysqli($servername, $username, $password, $dbname);

	echo(!$this->BDDptr);
	if ($this->BDDptr->connect\_error)
	{
      die("connection failed: " .$this->BDDptr->connect\_error);
	}
	
	$this->BDDptr->set\_charset("utf8");
	$this->BDDptr->query('SET NAMES utf8');
}

function consulta($sql)
{
  $result = $this->BDDPtr->query($sql);
  return $result;
}

}

At construction time it's clear I've accessed BDDPtr as SetCharset and Set names queries worked ok. But I can't make it work from any other file, even in the beginning of each file I have:

include('/bdd.php');

From the external files I've tried:

$BDD->$BDDPtr->query(...
cBDD::$BDDPtr->query(...

But when I add this line to my code the web page disappears... What I'm doing wrong? The error I'm getting is: Fatal error: Uncaught Error: Call to a member function query() on null in /connexio.php:33 Stack trace: #0 /login.php(42): cBDD->consulta('SELECT myField...') #1 {main} thrown in /connexio.php on line 33 Line 33 has: $result = $this->BDDPtr->query($sql); And $sql is: "$sql = "SELECT myField FROM tUsuaris WHERE login = $usuari";" Thank you very much!