email-validation

问题 I'm trying to do an email validation whereby the domain of the email would be @abc123.com . I've separated my form validation rules into another file in the application/config folder called form_validation.php . One of my rules consists of a callback_email_check . Where should I put the function? In the main controller or together with the form_validation.php file where all my form validation rules are? I've tried putting at both options but at where I display my error message I'm getting an

问题 This question already has answers here : How to validate an email address using a regular expression? (73 answers) Closed 5 years ago . I'm was using PHP eregi function, but I get the notice that it is deprecated. Here's my code: !eregi("^[A-Z0-9._%-]+@[A-Z0-9._%-]+\.[A-Z]{2,4}$", trim($_POST['email'])) Therefore I am trying to replace the function with the preg_match, but seems that I am unable to get the correct pattern for the preg_match, as I get error with the following code: !preg_match

问题 I'm currently working on a registration page where the users enter their email address. I want every email to be unique. This is a part of my RegisterModel: [Required()] [System.Web.Mvc.Remote("IsUserEmailAvailable", "Account")] [EmailAddress()] [DataType(DataType.EmailAddress)] [Display(Name = "Email")] public string Email { get; set; } .. This is a part of my accountcontroller: public JsonResult IsUserEmailAvailable(string UserEmail) { return Json(!db.UserProfiles.Any(User => User.UserName

问题 This question already has answers here : Closed 10 years ago . Possible Duplicate: What is the best regular expression for validating email addresses? I am using this particular regular expression for checking emails. "^[A-Za-z0-9](([a-zA-Z0-9,=\.!\-#|\$%\^&\*\+/\?_`\{\}~]+)*)@(?:[0-9a-zA-Z-]+\.)+[a-zA-Z]{2,9}$" The issue I have is that, this allows periods before the "@" symbol. Is there any way this expression be modified so that this does not happen, yet all other conditions are maintained

问题 I am using email validation into my project which method is like below //MARK: isValidEmailID func isValidEmail(testStr:String) -> Bool { print("validate emilId: \(testStr)") let emailRegEx = "^(?:(?:(?:(?: )*(?:(?:(?:\\t| )*\\r\\n)?(?:\\t| )+))+(?: )*)|(?: )+)?(?:(?:(?:[-A-Za-z0-9!#$%&’*+/=?^_'{|}~]+(?:\\.[-A-Za-z0-9!#$%&’*+/=?^_'{|}~]+)*)|(?:\"(?:(?:(?:(?: )*(?:(?:[!#-Z^-~]|\\[|\\])|(?:\\\\(?:\\t|[ -~]))))+(?: )*)|(?: )+)\"))(?:@)(?:(?:(?:[A-Za-z0-9](?:[-A-Za-z0-9]{0,61}[A-Za-z0-9])?)(?:\\.

问题 I need customize the message error: Email has already been taken for email, I'm working with Ruby 1.9.2, Rails 3.1.3, Devise 1.5.3, I tried change the message in: config/locales/devise.en.yml and in my config/locales/en.yml but it doesn't works! In my models/user I have: validates_uniqueness_of :email, :message => "este mail ya sido utilizado" It shows that message but it also shows: Email has already been taken . 回答1: I never used Devise, but I think the "taken" message is an ActiveRecord

问题 We need to write a email validation program in C. We are planning to use GNU Cregex.h) regular expression. The regular expression we prepared is [a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])? But the below code is failing while compiling the regex. #include <stdio.h> #include <regex.h> int main(const char *argv, int argc) { const char *reg_exp = "[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)

问题 I have an email input field where i check if the email is already present in my database using ajax on losing focus from that email input. I want to make sure the email entered is in the correct format before i make an ajax call. Can i do this with html5 built-in email validator or do i have to write my own validation function? Edit:I am already using the html5 email validator but it validates the email only when the form is submitted. 回答1: In Firefox , it should check the email for validity

问题 As many people may already be aware, correctly validating email addresses can be somewhat of a nightmare. You can search all day long for a C# regex that matches the current RFC standards, and you'll find different regex expressions that give different results. If you look at http://en.wikipedia.org/wiki/Email_address#Local_part, you'll see that a period at the beginning or end of the local part is not allowed. Two consecutive periods are also not allowed. However, the following NUnit test

问题 As many people may already be aware, correctly validating email addresses can be somewhat of a nightmare. You can search all day long for a C# regex that matches the current RFC standards, and you'll find different regex expressions that give different results. If you look at http://en.wikipedia.org/wiki/Email_address#Local_part, you'll see that a period at the beginning or end of the local part is not allowed. Two consecutive periods are also not allowed. However, the following NUnit test