Simple Regex email check

[jamiet757]

I have a script that checks to see if an email address is already in the database before a user can register, for some reason it isn't working right, but I don't know why. Here is what I have so far:

 

<?php
include("../admin/function/db.php");
include("JsHttpRequest.php");

$JsHttpRequest =& new JsHttpRequest($mtg);

$email=result3($_REQUEST['email']);

if($_REQUEST['email']=="" or !preg_match("/[\.\-_A-Za-z0-9]+?@[\.\-A-Za-z0-9]+?[\.A-Za-z0-9]{2,}/",$_REQUEST['email']))
{
echo("<span class='error'>".word_lang("incorrect")."</span>");
}
else
{
$sql="select email from users where email='".$email."'";
$rs->open($sql);
if(!$rs->eof)
{
echo("<span class='error'>".word_lang("serror2")."</span>");
}
else
{
echo("<span class='ok'>".word_lang("ok2")."</span>");
}
}
?>

I think the problem lies in the preg_match section, but I haven't a clue how it should be formatted.

[Andy-H]

filter_input can be used with the FILTER_VALIDATE_EMAIL flag to check for validity of email formats.

 

 

in your case it would be 

filter_input(INPUT_REQUEST, 'email', FILTER_VALIDATE_EMAIL) != $_REQUEST['email']

[jamiet757]

I replaced the original with this:

if($_REQUEST['email']=="" or filter_input(INPUT_REQUEST, 'email', FILTER_VALIDATE_EMAIL) != $_REQUEST['email'])

 

But I get this error now:

Warning:  filter_input() [function.filter-input]: INPUT_REQUEST is not yet implemented in check_email.php on line 9

[Andy-H]

Ahh, sorry about that, just read the manual on it.

 

 

filter_var($_REQUEST['email'], FILTER_VALIDATE_EMAIL) === false

 

 

Try that instead.

 

 

[jamiet757]

Great thanks, that worked like a charm!

[Andy-H]

No problem mate Glad I could help, could you set the topic as solved please.

 

(The solved button is at the bottom left in a green box, just in case you didn't know )