Validate email address

Hi, i am doing an exercise on email validation and i met some problem.

i am trying to validate an email address if there is an @ symbol in it.

here's the code:

<?php 
if(isset($_POST['name'])){
$name = ucwords($_POST['name']);
echo "Hello ".$name."<br />";
}
if(isset($_POST['email']{
[B][COLOR="blue"]if(ereg("@",$_POST['email'])){[/COLOR][/B]
echo "Your email submission is ". $_POST['email']."<br />";
}else{
echo "Please enter an @ sign to your email"; 
}
}
?>

Code (markup):

The error is at the bold blue part ( line 7). I wonder if i did anything wrong with the ereg.
Is ereg function being deprecated in php? if i cannot use ereg, what else can be done?

pls advise, thanks.

 

I just wrote this works fine,

<?php

	$string = "glen.email.com";
	
	$look = "/@/";
	
	if(preg_match($look,$string))
	
		{
		
		echo "Found it";	
			
		}
		else
		{
			
		echo "It's not there!";	
			
		}

?>

PHP:

 

Yes, ereg function is being deprecated and should not be used, ever. You can use preg_match instead. I think the problem with your code is this:

if(isset($_POST['email']{

Code (markup):

You made a typo, you forgot to add "))"

 

i already got the "))" in the code. i will check preg_match. I just dunno why my script can't run and got an error at that part.

 

Any more help? I just do not understand why that is an error.. the codes are all fine and ok.

 

oh yeah i forgot the "))". i spotted it in the post but forgot to correct it in my real script.. Oo"

 

The script I wrote works fine please read my post.

You shouldn't use that function anymore it's depreceated.

Glen

 

For preg_match, i need to use "/@/", ( include the backslash?)

but for ereg there is not a need for the backslash?

 

yes huggy.. noted. Now i got to learn preg_match.

 

regular expression for email

^[A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,4}$

 

If your just checking if theirs the @ (at) character within the email string, you can just do (theirs no need for a regex):

if (substr_count($email, '@') == 1) {
//proceed...
}

PHP:

However if your trying to validate it to ensure its in a valid email format, you can use a regex, but I don't recommend using sunnyverma1984's one as that has a few flaws (doesn't allow lowercase letters, doesn't accept subdomains, doesn't allow tld's such as co.uk, hasn't escaped/backslashed special characters, doesn't validate the whole string and so on.)

 

The regular expression library really helps when you don't have time to create your own regular expressions:

http://regexlib.com

Here is a function I use to check email address:

function checkEmail($string) {
    return preg_match('/^[.\w-]+@([\w-]+\.)+[a-zA-Z]{2,6}$/', $string);
} 

var_dump(checkEmail('alex.JOHNSON.Department-Outsource@gmail.co.uk.COM'));

PHP: