Fatal error: Call to undefined method

[AzeS]

I try to set up a session for an chat betwen two users as i try to establish it it throws out following error message : 
Fatal error: Call to undefined method SPOP::prepare() in D:\XAMPPmm\htdocs\***\CORE\ADM.php on line 219

Callout: 

if (isset($_POST['submitcon'])) {
  $UID = $userRow['userId'];
  $TARGET = $_POST['uid'];
  $SID = $UID . $TARGET;
  $res0 = $SPOP->establishsession($UID,$TARGET,$SID,0); 
}

ADM.php:

public function establishsession($UID,$TARGET,$SID,$STMT) { # func zum establieren von chats so das der nutzter einen chat bekommt (SESSION SETUP)
	switch ($STMT) {
		case 0: # establish
			try {
		$sql = $this->prepare("INSERT INTO csessionsub(FROM_,TO,SESSID) VALUES(:f,:t,:s)");
		$sql->execute(array(':f' => $UID, ':t' => $TARGET, ':s' => $SID));
		return 1;
		} catch (PDOException $ex) {
			echo $ex->getMessage();
			return 0;
	    }
			break;
		case 1: # delete 
			try {
		$sql = $this->prepare("DELETE FROM csessionsub WHERE SESSID=:s");
		$sql->bindparam(":s", $SID);
		$sql->execute();
		return 1;
		} catch (PDOException $ex) {
			echo $ex->getMessage();#
			return 0;
	    }
			break;
		default:
			return 0;
			break;
	}
	

}

Any sugestions ?

[Jacques1]

You're trying to call $this->prepare() within your SPOP object (whatever that may be), but it doesn't have a prepare() method. I'm sure you actually meant something like this:

$this->db->prepare(...)
     ^^^^
     or whatever the attribute with the PDO instance is called

[AzeS]

Ooooh i gues i coded to long for this day i might take a break... but thanks, solved... ^^