访问类方法/函数PHP

Question

I have an index.php and a Regions.php which is a class. I'm trying to call a method from Regions class to my index.php but it seems I can't access it.It says:

Call to undefined function getRegionInfo() in C:\xampp\htdocs\exercise4\index.php on line 7

But I already included the files I need. Here's the code.

index.php

$regions = new Regions;
$regions = getRegionInfo();
$regions = get_regions();

Here's my Region class

class Regions
{

 public function getRegionInfo()
 {
    $this->get_regions();
 }

 private function get_regions()
 {
    global $db;
    $result = array();
    $sql  = "SELECT RegionID, RegionName, IslandID FROM ref_regions";
    $stmt = $db->prepare($sql);
    $stmt->execute();
    $stmt->setFetchMode(PDO::FETCH_ASSOC);
    while ($row = $stmt->fetch()) 
    {
      array_push($result,array($row['RegionID'], $row['RegionName'], $row['IslandID']));
    }     
    return $result;
 }

}

Answer 1

Class Methods are accessed by using the ->symbol. So use:

$regions = new Regions();
$regions->getRegionInfo();
$regions->get_regions();

And change your get_regions() from private to public, if you want to call it externally.