php 在调用中使用变量

Question

Fatal error: Access to undeclared static property: DTS\eBaySDK\Constants\GlobalIds::$stripped in /home/jimi13/public_html/dealpopup.com/ebayapi/finding/mine.php on line 334

$stripped = str_replace(' ', '', $country);
$stripped = preg_replace('/\s+/', '', $stripped);
echo $stripped;

need to take put stripped into this

$service = new Services\FindingService([
    'credentials' => $config['production']['credentials'],
    'globalId'    => Constants\GlobalIds::US
]);

need to put this in, but throws error

$service = new Services\FindingService([
    'credentials' => $config['production']['credentials'],
    'globalId'    => Constants\GlobalIds::$stripped
]);

Answer 1

Here is a way you can access a constant variable in the class with namespace. If no namespace then you can remove the Constants namespace.

namespace Constants;

class Hello {
  const WORLD = 'Hello World';
}

$world = 'WORLD';
echo constant('Constants\Hello::' . $world);