Email verification problem

yoki

Hello,

I am using the following function in order to validate an e-mail address field in my form:

function checkEmail($email) {
// checks proper syntax

if(preg_match("/⁽ [a-zA-Z0-9] )+( [a-zA-Z0-9.-] )*@( [a-zA-Z0-9-] )+( [a-zA-Z0-9._-] +)+$/",$email)) {

// gets domain name
list($username,$domain)=split('@',$email);
// checks for if MX records in the DNS
if(!checkdnsrr($domain, 'MX')) {

return false;
}
// attempts a socket connection to mail server
if(!fsockopen($domain,25,$errno,$errstr,30)) {

return false;
}

return true;
}

return false;
}

The function returns false even to a good email address. I was thinking maybe there is an error in the script...

Help anyone? 😕

subwayman

Do yourself a favour and put echo's in each if statement to establish where your script fails. It the ereg is OK and the email address is OK, then one or other of the checks (MX, Socket) fails. If you are not sure of the ereg with the email address you a re using get hold of a copy of Regex Coach - it's invaluable for checking regex strings.

subwayman

Just checked yout regex using regex coach and it don't work.

if(preg_match("/⁽ [a-zA-Z0-9] )+( [a-zA-Z0-9.-] )*@( [a-zA-Z0-9-] )+( [a-zA-Z0-9._-] +)+$/",$email)) {

Remove the spaces and the last escape so you have:

"^([a-zA-Z0-9])+([a-zA-Z0-9.-])*@([a-zA-Z0-9-])+([a-zA-Z0-9._-]+)+$"

yoki

Thanks subwayman!! :o I knew there was something wrong with the function not evaluating the email properly. I will definitely try out Regex Coach. I had no clue there was such a program for doing this...