Location\Ellipsoid::createDefault PHP Method

    public static function createDefault($name = 'WGS-84')
    {
        return static::createFromArray(static::$configs[$name]);
    }

 /**
  * @param float     $lat       -90.0 .. +90.0
  * @param float     $lng       -180.0 .. +180.0
  * @param Ellipsoid $ellipsoid if omitted, WGS-84 is used
  *
  * @throws \InvalidArgumentException
  */
 public function __construct($lat, $lng, Ellipsoid $ellipsoid = null)
 {
     if (!$this->isValidLatitude($lat)) {
         throw new \InvalidArgumentException("Latitude value must be numeric -90.0 .. +90.0 (given: {$lat})");
     }
     if (!$this->isValidLongitude($lng)) {
         throw new \InvalidArgumentException("Longitude value must be numeric -180.0 .. +180.0 (given: {$lng})");
     }
     $this->lat = doubleval($lat);
     $this->lng = doubleval($lng);
     if ($ellipsoid !== null) {
         $this->ellipsoid = $ellipsoid;
     } else {
         $this->ellipsoid = Ellipsoid::createDefault();
     }
 }