Question

当用户选择与销售额相等的单选按钮时，它会向销售部门发送信息，该工作正常。

当用户选择支持部门时，我需要为他们需要支持的设备输入5位序列号。序列号只能在3到5个数字之间。如果序列不是3到5个数字示例：

在这个框中如果数字是123提交，如果12324提交，如果x3423死，如果12死，如果123456死。我也只需要接受数字。

我可以这样做吗

if($selected == 'sales') {
    $body = "From: $name_field\n E-Mail: $email_field\n Address: $address\n City: $city\n State: $state\n PostalCode: $zip\n Department $selected\n How did you about us: $hear\n Country: $country\n  Comments: $comment";
    mail($to, $subject, $body);
    header("Location: http://url/");
}     
else if($selected == 'support') {
    if(preg_match("/^\d{3}$|^\d{5}$/", $_POST['serial']) === 0) {
        $body = "From: $name_field\n E-Mail: $email_field\n Address: $address\n City: $city\n State: $state\n PostalCode: $zip\n Department $selected\n How did you about us: $hear\n Country: $country\n Serial Number: $serial\n  Comments: $comment";
        mail($toa, $subject2, $body);
        header("Location: http://url/");
    }
    else {
        die('<script type="text/javascript"> alert("Serial Number is invalid");</script>');
    }
}
}

Answer 1

如果正则表达式无法匹配，您当前正在发送电子邮件。你的正则表达式也是错的。还有一些小事。

试试这个：

switch($selected) {
    case "sales":
        $body = "From........................";
        mail($to,$subject,$body);
        header("Location: .....");
        exit;
    case "support":
        if( preg_match("(^[0-9]{3,5}$)",$_POST['serial'])) {
            $body = "From.......................";
            mail($toa,$subject2,$body);
            header("Location: ......");
            exit;
        }
        else {
            die("Serial Number is invalid!");
        }
    default:
        die("Invalid department selection.");
}

需要一些帮助。用php if else语句

1 个答案: