php - 可以从 php 中的数组动态定义类默认公共(public)变量吗？

Question

我有一个事件类，用于将数据插入/更新到我的数据库中。有没有一种方法可以从我的 db_fields 数组创建公共(public)变量，这样我就不必复制数据了？

这是我目前有效的结构...

class event{
    protected static $table_name='tName';
    protected static $db_fields = array('field1','field2','field3','field4','field5');

    public $field1;
    public $field2;
    public $field3;
    public $field4;
    public $field5;
}

我想要这样的东西..

class event{
    protected static $table_name='tName';
    protected static $db_fields = array('field1','field2','field3','field4','field5');

    function __construct() {
        create_public_vars_here($db_fields);
    }

}

谢谢!

Answer 1

您可以尝试以下方法:

class event{

    protected static $table_name='tName';
    protected static $db_fields = array('field1','field2','field3','field4','field5');

    function __construct() {
        foreach (self::$db_fields as $var) {
            $this->$var = $whateverDefaultValue;
        }
        // After the foreach loop, you'll have a bunch of properties of this object with the variable names being the string values of the $db_fiels.
        // For example, you'll have $field1, $field2, etc and they will be loaded with the value $whateverDefaultValue (probably want to set it to null).
    }

}