正则表达式验证字母、点和破折号 Laravel
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Regex validation letters, dots and dash Laravel
提问by Sebastian Corneliu V?rlan
I have this validation:
我有这个验证：
'users.first_name' => 'required|min:2|regex:/[A-Za-z. -]/|max:255',
Why this validation pass this name: John[][]
为什么这个验证通过这个名字：John[][]
回答by revo
Someone in comments also pointed to this issue that by /[A-Za-z. -]/you don't care about all characters but saying that's enough for me if field under validation has only the least of that characters.
评论中的某人还指出了这个问题，/[A-Za-z. -]/您并不关心所有字符，但如果验证中的字段只有最少的字符，那么这对我来说就足够了。
To have only those characters you should specify beginning and ending of the input text by using a caret ^and $:
要仅包含这些字符，您应该使用插入符号^和指定输入文本的开头和结尾$：
regex:/^[A-Za-z. -]+$/
