可以从php中的数组动态定义类默认公共变量吗?
发布时间:2020-12-13 17:13:32 所属栏目:PHP教程 来源:网络整理
导读:我有一个事件类,我用它来插入/更新数据到我的数据库.有没有办法,我可以从我的db_fields数组创建公共变量,以便我不必复制数据? 这是我现在的结构…… class event{ protected static $table_name='tName'; protected static $db_fields = array('field1','fi
我有一个事件类,我用它来插入/更新数据到我的数据库.有没有办法,我可以从我的db_fields数组创建公共变量,以便我不必复制数据?
这是我现在的结构…… 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 $db_fields = array('field1','field5'); function __construct() { create_public_vars_here($db_fields); } } 谢谢! 解决方法
您可以尝试以下方法:
class event{ protected static $table_name='tName'; protected static $db_fields = array('field1','field5'); function __construct() { foreach (self::$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). } } (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |