zend-framework – 覆盖Zend_Config并访问父节点

来自Zend_Config_Ini :: __构造函数()docblock： –

/** The $options parameter may be provided as either a boolean or an array.
 * If provided as a boolean,this sets the $allowModifications option of
 * Zend_Config. If provided as an array,there are three configuration
 * directives that may be set. For example:
 *
 * $options = array(
 *     'allowModifications' => false,*     'nestSeparator'      => ':',*     'skipExtends'        => false,*      );
 */
public function __construct($filename,$section = null,$options = false)

这意味着您需要执行以下操作： –

$inifile = APPLICATION_PATH . '/configs/application.ini';
$section = 'production';
$allowModifications = true;
$config = new Zend_Config_ini($inifile,$section,$allowModifications);
$config->resources->db->params->username = 'test';
var_dump($config->resources->db->params->username);

结果

string ‘test’ (length=4)

回应评论

在这种情况下,您可以简单地扩展Zend_Config_Ini并覆盖__construct()和__set()方法,如下所示： –

class Application_Model_Config extends Zend_Config_Ini
{
    private $allowed = array();

    public function __construct($filename,$options = false) {
        $this->allowed = array(
            'list','of','allowed','variables'
        );
        parent::__construct($filename,$options);
    }
    public function __set($name,$value) {
        if(in_array($name,$this->allowed)){
            $this->_allowModifications = true;
            parent::__set($name,$value);
            $this->setReadOnly();
        } else { parent::__set($name,$value);} //will raise exception as expected.
    }
}