Question

我无法理解为什么后续代码被Netbeans标记为语法错误表达式。无论如何，这段代码正确地工作到我的项目中，它被定义为一个类。

谢谢！

...        
const UPDATE_LISTINI = array(
    "TABLE_NAME" => "update_listini",
     "TABLE_LOW_FILE_NAME" => "update_listini",
     "TABLE_FILE_REGEX" => "update_listini_*",
     "TABLE_FILE_NOT_REGEX" => "_[0-9]*$",
     "TABLE_FILE_FORMAT" => null,
     "TABLE_FILE_SEPARATOR" => null,
     "COLUMN_COUNT" => 4,
     "INDEX_OF" => array(
    "DATA" => 0,
     "USER" => 1,
     "GRUPPO" => 2,
     ),
    );

    const SELECT = "SELECT ";
    const FROM = " FROM ";

...   

    public function sql_getQuery_select_LastUpdate($tablename, $fields){
    switch ($tablename){
    case self::UPDATE_LISTINI['TABLE_NAME'] : return self::SELECT."MAX(".$fields.") ".self::FROM.self::UPDATE_LISTINI['TABLE_NAME'];
    case self::UPDATE_PROMO['TABLE_NAME'] : return self::SELECT."MAX(".$fields.") ".self::FROM.self::UPDATE_PROMO['TABLE_NAME'];
    case self::UPDATE_SCONTI['TABLE_NAME'] : return self::SELECT."MAX(".$fields.") ".self::FROM.self::UPDATE_SCONTI['TABLE_NAME'];

    }
    } 
...

Answer 1

您不能将常量声明为任何类型的语言构造。它必须是静态值。

As of PHP 5.6，您可以在声明中使用一些标量

现在可以在上下文中提供涉及数字和字符串文字和/或常量的标量表达式，其中PHP以前期望静态值，例如常量和属性声明以及默认函数参数。

Answer 2

你可以这样做

    <?php

class CmsAdminMenuHelper {
    const ADMIN_MENU_USERS = 1;
    const ADMIN_MENU_USERS_NAME = 'Users';
    const ADMIN_MENU_CATEGORIES = 2;
    const ADMIN_MENU_CATEGORIES_NAME = 'Categories';
    const ADMIN_MENU_PRODUCTS = 3;
    const ADMIN_MENU_PRODUCTS_NAME = 'Products';
    const ADMIN_MENU_STATIC_PAGES = 4;
    const ADMIN_MENU_STATIC_PAGES_NAME = 'Static Pages';
    const ADMIN_MENU_ADMINSTRATORS = 5;
    const ADMIN_MENU_ADMINISTRATORS_NAME = 'Administrators';
    const ADMIN_MENU_EMAIL_TRACING = 6;
    const ADMIN_MENU_EMAIL_TRACING_NAME = 'Email Tracking';
    public static  $ADMIN_MENU_ARRAY =array(
            self::ADMIN_MENU_USERS => self::ADMIN_MENU_USERS_NAME,
            self::ADMIN_MENU_CATEGORIES => self::ADMIN_MENU_CATEGORIES_NAME,
            self::ADMIN_MENU_PRODUCTS => self::ADMIN_MENU_PRODUCTS_NAME,
            self::ADMIN_MENU_STATIC_PAGES =>self::ADMIN_MENU_STATIC_PAGES_NAME,
            self::ADMIN_MENU_ADMINSTRATORS => self::ADMIN_MENU_ADMINISTRATORS_NAME,
            self::ADMIN_MENU_EMAIL_TRACING => self::ADMIN_MENU_EMAIL_TRACING_NAME,
    );
    public static $SUPER_ADMIN_EDIT_VIEW_REMOVE_ARRAY =  array(
            'view'=>true,
            'edit'=>true,
            'remove'=>true      
        );
}

通过switch case使用const数组的PHP语法错误。 Netbeans的

2 个答案: