Question

我无法在书籍或网络上找到任何示例，描述如何通过名称正确初始化关联数组（使用空值） - 当然，除非这是正确的方式（？）

感觉好像还有另一种更有效的方法：

的config.php

class config {
    public static $database = array (
        'dbdriver' => '',
        'dbhost' => '',
        'dbname' -> '',
        'dbuser' => '',
        'dbpass' => ''
    );
}

// Is this the right way to initialize an Associative Array with blank values?
// I know it works fine, but it just seems ... longer than necessary.

的index.php

require config.php

config::$database['dbdriver'] = 'mysql';
config::$database['dbhost'] = 'localhost';
config::$database['dbname'] = 'test_database';
config::$database['dbuser'] = 'testing';
config::$database['dbpass'] = 'P@$$w0rd';

// This code is irrelevant, only to show that the above array NEEDS to have Key
// names, but Values that will be filled in by a user via a form, or whatever.

任何建议，建议或指示都将不胜感激。感谢。

Answer 1

你拥有的是最明确的选择。

但你可以使用array_fill_keys缩短它，如下所示：

$database = array_fill_keys(
  array('dbdriver', 'dbhost', 'dbname', 'dbuser', 'dbpass'), '');

但是如果用户必须填写值，你可以将数组留空，只需在index.php中提供示例代码即可。分配值时，将自动添加键。

Answer 2

第一档：

class config {
    public static $database = array();
}

其他档案：

config::$database = array(
    'driver' => 'mysql',
    'dbhost' => 'localhost',
    'dbname' => 'test_database',
    'dbuser' => 'testing',
    'dbpass' => 'P@$$w0rd'
);

使用键名但空值初始化关联数组

2 个答案: