[Phpwm] Simple PHP Contact Form

[phil at infolinkelectronics.co.uk]

> You'd be best off performing some sort of regular expression match -
> or using the filter extension ...
>
> $email = filter_var($_POST['email'], FILTER_VALIDATE_EMAIL);
> if(!$email) {
>         // invalid email address
> }
> (Requires PHP5, I think my syntax/usage is correct, but I've not
> checked it)

The regex is (acting on the incoming variable $emaila)

if (!eregi ("^([a-z0-9_]|\\-|\\.)+@(([a-z0-9_]|\\-)+\\.)+[a-z]{2,4}$",
$emaila)) error_alert("Invalid Email Address");

where:-

function error_alert($msg){global $flag; $flag = 1; echo
"<script>alert(\"Error: $msg\");history.go(-1)</script>";}

Thats from a page where the form, validation and sending are done as three
invocations via a switch, case, do something and break method. a -1 history
kickback works.
The eregi bit should be fairly PHP version unspecific though.

Regards,

Phil Beynon
Sales & Operations Director

** Infolink Electronic Systems Ltd.
** S/W Birmingham's Longest Established ISV & VAR
** http://www.infolinkelectronics.co.uk
** Professional Web 2.0 Design & Advanced Hosting Platforms
** http://www.coeus-computica.co.uk
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** Contact: Sales at infolinkelectronics.co.uk
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