PHP Codeigniter中的自定义验证-必填两个字段之一 [英] Custom Validation in PHP Codeigniter - one of two fields required

问题描述

我的表格有手机和电话区。我希望用户填写其中一个字段，或都不填写两个字段。

My form has a cellphone and a phone field. I want the user to fill either one of the fields, or both, but not neither.

我已经看到用其他语言编写的方法，但是我可以有关如何使用Codeigniter的一些建议？

I've seen ways to do it in other languages, but could I have some advice on how to do it with Codeigniter?

推荐答案

只需在客户端进行JS验证，并在服务器上进行PHP验证-side（或使用CI的表单帮助器）...无论如何，PHP应该看起来像这样：

Just do a JS validation on client-side, and PHP validation on server-side (or use CI's form helper)... Anyway, PHP should look something like this:

if ($_POST['cellphone'] == '' OR $_POST['phone' == '') {
// do stuff like make an notification, alert, etc... and take users back to the form
}

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