PHP SQL Help?

Question

Hi,

Im doing some php and mysql and am having abit of trouble, I got a script from the internet and this bit validates it:

// Check for a email.
if (eregi ("^[[:alnum:]_]{0,25}$", stripslashes(trim($_POST['email'])))) {
$em = escape_data($_POST['email']);
} else {
$em = FALSE;
echo '

Please enter valid email!

';
}

Just wondering what each bit meant so I could decifer it and make it work.

Cheers

Answer 1

Don't know much about php SQL but could the error be in line 2 at the end where you have POST['emai...{

Should this read POST['email'] as in line 3?

The FALSE statement prints in red "Please enter valid email" if the address is invalid after the check has been made in line 2

Answer 2

:D It just validates a POSTed email address and no more.

The argument for the "if" statement checks if the POST variable called "email" is a valid email address. For this part you'll need some knowledge on regular expressions

If so, then the POST variable gets escaped and is assigned to the "em" variable.

Other case a HTML meesage will be displayed.

Answer 3

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