php - Laravel，验证 alpha_dash 防止破折号

Question

我有验证规则:

$rules = ['username' => 'required|string|alpha_dash']

我需要在验证中防止破折号，只允许下划线、字母和数字。我该怎么做？现在 alpha_dash 允许破折号..

Answer 1

如果您愿意，我建议您使用 regex 验证来获得更多自定义功能。参见 https://laravel.com/docs/5.8/validation#rule-regex

'regex:/^[A-Za-z0-9_]+$/'

或更具体地说

$rules = ['username' => 'required|string|regex:/^[A-Za-z0-9_]+$/']

因为根据文档alpha_dash支持-

The field under validation may have alpha-numeric characters, as well as dashes and underscores.