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This simple function validates an e-mail address first by checking against a regular expression and second that the mail host exists. The DNS check fails if there is no MX record for the tested e-mail address. This function is an optimum validation for contact forms, CMS and member systems. Don't forget that the function "checkdnsrr" will not work on windows servers.
| <?php
function check_email($mail_address) {
$pattern = "/^[\w-]+(\.[\w-]+)*@";
$pattern .= "([0-9a-z][0-9a-z-]*[0-9a-z]\.)+([a-z]{2,4})$/i";
if (preg_match($pattern, $mail_address)) {
$parts = explode("@", $mail_address);
if (checkdnsrr($parts[1], "MX")){
echo "The e-mail address is valid.";
// return true;
} else {
echo "The e-mail host is not valid.";
// return false;
}
} else {
echo "The e-mail address contains invalid charcters.";
// return false;
}
}
check_email("INFO@google.co.uk");
?> | |
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| email validator check checker email e-mail email address
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| | | | Indiana Jones wrote :1748
This Script is not RFC 2822 Valid.
Emails like:
jeff^lobster@domain.com
jeff’lobster@domain.com
jeff’lobster{yummy}@domain.com
are valid RFC 2822 email adresses but will be flaged as incorrect by this script.
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