php函数检查垃圾邮件字段是否有value1或value2或值3，然后继续发送邮件或显示错误

Question

I'm trying to set up a spam check for my contact form.

The spam check will be a simple text field where the user can enter the answer in 3 possible values.

How would I go about checking the contents of the string (spam field) in php and combine this with the "If".

It would be like

If spamfield=XXXXXX or YYYYY or ZZZZZ then send e-mail Else show error message

Thanks!

Answer 1

if($spamfield == "XXXXXX" || $spamfield == "YYYYY" || $spamfield == "ZZZZZ")
{
   send_mail();
}

|| is the operator OR