how to email address validation in a php

Question

I'm trying to validate email address entered in a textbox, I want error message to be displayed when the user leave email address field with invalid email address "The email address is NOT valid."

There are lot of posts already having this, did you try searching? — AyB, Feb 20 '14 at 05:27
possible duplicate of [How to validate an Email in PHP?](http://stackoverflow.com/questions/5855811/how-to-validate-an-email-in-php) — Marty, Feb 20 '14 at 05:32
It really doesn't, with the new TLD's that are out now the answer you thought was best will invalidate almost all of them. See http://newgtlds.icann.org/en/program-status/delegated-strings — Shannon, Feb 20 '14 at 06:21

Nagaraj S · Answer 1 · 2014-02-20T05:35:11.133

5

you can use filter_var ()

<?php
$email_address = "me@example.com";
if (filter_var($email_address, FILTER_VALIDATE_EMAIL)) {
  // The email address is valid
} else {
  // The email address is not valid
}
?>

edited Feb 20 '14 at 05:35

answered Feb 20 '14 at 05:28

Nagaraj S

13,316
6
32
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score 3 · Answer 2 · answered Feb 20 '14 at 05:27

3

You can go throgh this link

<?php
$email = "someone@example.com";

if(!filter_var($email, FILTER_VALIDATE_EMAIL))
  {
  echo "E-mail is not valid";
  }
else
  {
  echo "E-mail is valid";
  }
?>

answered Feb 20 '14 at 05:27

Sherin Jose

2,508
3
18
39

score 2 · Answer 3 · answered Feb 20 '14 at 05:29

Email validation

<?php
$email_a = 'joe@example.com';


if (filter_var($email_a, FILTER_VALIDATE_EMAIL)) {
    echo "This ($email_a) email address is considered valid.";
}
else
{
    echo "This ($email_a) email address is not considered valid.";
}

Reference

score 0 · Answer 4 · answered Feb 20 '14 at 05:26

from http://jqueryvalidation.org/email-method

<body>
<form id="myform">
    <label for="field">Required, email: </label>
    <input class="left" id="field" name="field">
    <br/>
    <input type="submit" value="Validate!">
</form>
<script src="http://code.jquery.com/jquery-1.9.1.min.js"></script>
<script src="http://jquery.bassistance.de/validate/jquery.validate.js"></script>
<script src="http://jquery.bassistance.de/validate/additional-methods.js"></script>
<script>
// just for the demos, avoids form submit
jQuery.validator.setDefaults({
    debug: true,
    success: "valid"
});
$( "#myform" ).validate({
    rules: {
        field: {
            required: true,
            email: true
        }
    }
});
</script>
</body>

Umm.. This question is tagged `php`. – Marty Feb 20 '14 at 05:29 — Marty, Feb 20 '14 at 05:29

score 0 · Answer 5 · answered Feb 20 '14 at 05:31

You can use ,

if (filter_var($email_address, FILTER_VALIDATE_EMAIL)) 
{
  #valid email
} 
else
{
  #inavalid email
}

OR

$pattern = '/^(?!(?:(?:\\x22?\\x5C[\\x00-\\x7E]\\x22?)|(?:\\x22?[^\\x5C\\x22]\\x22?)){255,})(?!(?:(?:\\x22?\\x5C[\\x00-\\x7E]\\x22?)|(?:\\x22?[^\\x5C\\x22]\\x22?)){65,}@)(?:(?:[\\x21\\x23-\\x27\\x2A\\x2B\\x2D\\x2F-\\x39\\x3D\\x3F\\x5E-\\x7E]+)|(?:\\x22(?:[\\x01-\\x08\\x0B\\x0C\\x0E-\\x1F\\x21\\x23-\\x5B\\x5D-\\x7F]|(?:\\x5C[\\x00-\\x7F]))*\\x22))(?:\\.(?:(?:[\\x21\\x23-\\x27\\x2A\\x2B\\x2D\\x2F-\\x39\\x3D\\x3F\\x5E-\\x7E]+)|(?:\\x22(?:[\\x01-\\x08\\x0B\\x0C\\x0E-\\x1F\\x21\\x23-\\x5B\\x5D-\\x7F]|(?:\\x5C[\\x00-\\x7F]))*\\x22)))*@(?:(?:(?!.*[^.]{64,})(?:(?:(?:xn--)?[a-z0-9]+(?:-+[a-z0-9]+)*\\.){1,126}){1,}(?:(?:[a-z][a-z0-9]*)|(?:(?:xn--)[a-z0-9]+))(?:-+[a-z0-9]+)*)|(?:\\[(?:(?:IPv6:(?:(?:[a-f0-9]{1,4}(?::[a-f0-9]{1,4}){7})|(?:(?!(?:.*[a-f0-9][:\\]]){7,})(?:[a-f0-9]{1,4}(?::[a-f0-9]{1,4}){0,5})?::(?:[a-f0-9]{1,4}(?::[a-f0-9]{1,4}){0,5})?)))|(?:(?:IPv6:(?:(?:[a-f0-9]{1,4}(?::[a-f0-9]{1,4}){5}:)|(?:(?!(?:.*[a-f0-9]:){5,})(?:[a-f0-9]{1,4}(?::[a-f0-9]{1,4}){0,3})?::(?:[a-f0-9]{1,4}(?::[a-f0-9]{1,4}){0,3}:)?)))?(?:(?:25[0-5])|(?:2[0-4][0-9])|(?:1[0-9]{2})|(?:[1-9]?[0-9]))(?:\\.(?:(?:25[0-5])|(?:2[0-4][0-9])|(?:1[0-9]{2})|(?:[1-9]?[0-9]))){3}))\\]))$/iD';



if (preg_match($pattern, $$email_address) === 1) {
    // emailaddress is valid
}

OR using jQuery

var email = $('#email').val();
var regex = /^([a-zA-Z0-9_.+-])+\@(([a-zA-Z0-9-])+\.)+([a-zA-Z0-9]{2,4})+$/;
return regex.test(email);

liyakat · Answer 6 · 2014-02-20T05:36:44.490

below are the very fast and efficient way to valid email address

   <?php 
$email = "abc123@lolhaha"; // Invalid email address 
//$email = \"somebody@somesite.com\"; // Valid email address 
// Set up regular expression strings to evaluate the value of email variable against
$regex = '/^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,3})$/'; 
// Run the preg_match() function on regex against the email address
if (preg_match($regex, $email)) {
     echo $email . " is a valid email. We can accept it.";
} else { 
     echo $email . " is an invalid email. Please try again.";
} 
?>

how to email address validation in a php

6 Answers6