public function remove(string $key): bool
    {
        if (isset($this->_configValues[$key]) === false) {
            return false;
        }

        unset($this->_configValues[$key]);
        return true;
    }
public function remove(string $key): bool
    {
        if (isset($this->_configValues[$key]) === false) {
            return false;
        }

        unset($this->_configValues[$key]);
        return true;
    }
public function remove ( string $ key ) : bool { if ( isset ( $ this -> _configValues [ $ key ] ) === false ) { return false ; } unset ( $ this -> _configValues [ $ key ] ) ; return true ; }
Remove config item

Check if an item with provided key exists, and remove it.

@param string $key Config item key
@return bool
Remove config item