Singleling out digits.

[Foser]

Im trying to do something so if there is @ in the field. it will pass but if that fields !==/ does not include @ echo Your email is not valid.

is there a way to do this?

[per1os]

www.php.net/ereg

 

There are a bunch of email validation functions located in the user comments.

 

irlkersten at gmail dot com

22-Jun-2005 11:54

On a small note to email checking:

Recently it is possible to register domains like www.k�che.de

 

This would also mean that the IsEMail() function from "php at easy2sync dot com" would report an email address like "contact@k�che.de" as false.

 

To correct this, use the function below:

 

function IsEMail($e)
{
    if(eregi("^[a-zA-Z0-9]+[_a-zA-Z0-9-]*
(\.[_a-z0-9-]+)*@[a-z������0-9]+
(-[a-z������0-9]+)*(\.[a-z������0-9-]+)*
(\.[a-z]{2,4})$", $e))
    {
        return TRUE;
    }
    return FALSE;
}

 

Or even from www.php.net/eregi

<?php
//Assuming emails should have any of these combinations
//$str = "aa@a.com";
//$str = "a1@a.com";
//$str = "a.1@a.com";
//$str = "a.1a1@a.com";
//$str = "a1.a1@a.com";
//$str = "a1.a_1@a.com";
//$str = "a1.a-1@a.com";
//$str = "a1.a_1-a@a.com";
//$str = "a1.a_1-a@a-a.com";
$str = "a1.a_1-a@a-a.com.do";
//Anything out of these examples echos wrong
if(eregi("^[a-z]+[a-z0-9_-]*(([.]{1})|([a-z0-9_-]*))[a-z0-9_-]+
[@]{1}[a-z0-9_-]+[.](([a-z]{2,3})|([a-z]{3}[.]{1}[a-z]{2}))$",$str)) {
       echo "Right<br>";
} else {
   echo "Wrong<br>";
};
//You can enhanced this email validation by adding a list of valid domain name extensions ie.: .com,.net.,.org, ect and country specific ones too ie.: .do,.us,.br,.ve,.es, etc. in this part of the code (([a-z]{2,3})|([a-z]{3}[.]{1}[a-z]{2}))
?>

 

If thats what you are looking for, no need to re--invent the wheel.

[GingerRobot]

To simply check for the presence of a character, use the  strpos() function.

 

However, to create proper validation for email addresses, look into using regular expressions.

 

 

[Yesideez]

if (preg_match('/^[a-z0-9_-]+(\.[a-z0-9_-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*\.[a-z]{2,4}$/i',$email)==1) {
  //email valid
} else {
  //email invalid
}