从其他类函数调用静态函数不起作用

Question

I am trying to achieve the goal of static configuration data, where I can grab config items from an array at any file I want. I have made the functions static and it still is saying class could not be found? I am pretty new to PHP so help me out...

Index.php:

include(ROOT . '/application/library/yoda/settings.class.php');

if (class_exists('Settings')) {
    Settings::setPublic('testpublic', 'This is a test setting for the public category.');
}

Settings class:

class Settings
{
    static private $protectedSettings = array(); // For DB / passwords etc
    static private $publicSettings = array(); // For all public strings such as meta stuff for site

    /*public function __construct() {
        $this->protectedSettings = array();
        $this->publicSettings = array();
    }*/

    public static function getProtected($key) {
        return isset(self::$protectedSettings[$key]) ? self::$protectedSettings[$key] : false;
    }

    public static function getPublic($key) {
        return isset(self::$publicSettings[$key]) ? self::$publicSettings[$key] : false;
    }

    public static function setProtected($key,$value) {
        self::$protectedSettings[$key] = $value;
    }

    public static function setPublic($key,$value) {
        self::$publicSettings[$key] = $value;
    }
}

Where the error displays is in the code below... when I call showConfig()

class template {

    public function showConfig() {
        exit(Settings::getPublic('testpublic'));
    }
}

When calling showConfig() it displays the error below...

Fatal error: Class 'Settings' not found

Answer 1

Make sure you are including the Settings class file in the file that has the template class.

Other than that the code looks good and should be working.