Check the comments here: http://www.dominicsayers.com/isemail/

You’ll see a couple of people have mentioned Java versions of my code. Nobody has submitted any code to me for inclusion but you could try getting in touch with the commenters.

I just ran R17 thru a PHP syntax checker & it found a couple of comments without the ‘//’ delimiter, near the end of the file. That’s what was tripping things up. R20 is working fine, but you may want to fix any archived copies of R17 still posted out on Google code, or at least include a note in the documentation.

Here’s the include from my form processor:

include("path/to/include/is_email.inc.php");

and the error check:

if($EMail!=""){
if(!is_email($EMail,true))
{
$errors=1;
$error.="You entered an invalid e-mail address.";
}
}

Not sure what else I can tell you. I uploaded R17, renamed R15, and gave R17 the same name as the old version. When I hit the submit button, I got a blank page — suggesting the PHP was hanging at the include. Change the names back, & everything works again.

My original post was here.

Sorry that v17 isn’t working for you. It was designed to be backwards compatible so that it would just replace previous versions in the way you’ve done. Other people have been using v17 successfully, so I’m a bit mystified. I replace v15 with v17 on this page: http://www.dominicsayers.com/isemail/results.php and it works fine.

Can you give me any more information so I can try to help you?

I’ve been using version 15 to validate my quote form (http://messengerwebdesign.com/?page=request-quote) for some time now. Last week I tried replacing it with v17 and it stopped my form processing in its tracks. Any suggestions, or instructions for implementing? Could it have anything to do with the ‘diagnose’ feature?

(Also posted on your other site, but wasn’t sure if you were still monitoring comments over there — sorry if you’ve already read this).

Thanks,

–cz

I like your photo, just a man looking happy at the world and donating code to it :-)

I’ve wrapped your code in a form email validation helper for the great & open source Concrete 5 CMS. While testing it I noticed the following bug (?) running the code on my server (PHP 5.2.6-1+lenny3 with Suhosin-Patch 0.9.6.2 (cli) on Debian Lenny / Apache 2.2):

The DNS check would ALWAYS evaluate to true. (A problem which Raghu Veer noticed on his setup, too).

Investigating further into the problem, I found out that actually

checkdnsrr(‘nawr2312312321312ds.de.’, ‘A’);

would also return true – it’s not your code, it’s the implementation of this function in our versions probably.

Luckily, someone in the PHP website pointed out a solution to this:
You have to add a point to the domain name, thus modifying your code like so:

// Check DNS?
if ($checkDNS && function_exists(‘checkdnsrr’)) {
$domain = $domain . ‘.’;
if (!(checkdnsrr($domain, ‘A’) || checkdnsrr($domain, ‘MX’))) {
return $diagnose ? ISEMAIL_DOMAINNOTFOUND : false; // Domain doesn’t actually exist
}
}

He claims adding the dot enforces the root – it’s working now anyways :-)

Kudos to you for writing this great email validation tool, complete with DNS checking and error messages.
If you’re interested in the Validation Helper, I could send you a link to it.

Cheers!!
Max