i get the same alert with these to codes why??
[php]<?php
$field_email = ‘invalid’;
if (filter_var(’$field_email’, FILTER_VALIDATE_EMAIL)) {echo"
“; EXIT;}
else {echo”
“; EXIT;};
?>[/php][php]<?php
$field_email = ‘[email protected]’;
if (filter_var(’$field_email’, FILTER_VALIDATE_EMAIL)) {echo”
“; EXIT;}
else {echo”
"; EXIT;};
?>[/php]
That’s really not the best way to validate an email address. you need to know what its reporting. using the examples on php.net:
[php]var_dump(filter_var(‘[email protected]’, FILTER_VALIDATE_EMAIL));
reports back
string(15) "[email protected]"
[/php]
string(15) is the number of characters in that email adress.
below was taking from http://www.linuxjournal.com/article/9585?page=0,3 and is probably the best way to validate an email address. It returns true if good and false if not.
[php]
function validEmail($email) {
$isValid = true;
$atIndex = strrpos($email, “@”);
if (is_bool($atIndex) && !$atIndex) {
$isValid = false;
} else {
$domain = substr($email, $atIndex+1);
$local = substr($email, 0, $atIndex);
$localLen = strlen($local);
$domainLen = strlen($domain);
if ($localLen < 1 || $localLen > 64) {
// local part length exceeded
$isValid = false;
} elseif($domainLen < 1 || $domainLen > 255) {
// domain part length exceeded
$isValid = false;
} elseif($local[0] == ‘.’ || $local[$localLen-1] == ‘.’) {
// local part starts or ends with ‘.’
$isValid = false;
} elseif(preg_match(’/\.\./’, $local)) {
// local part has two consecutive dots
$isValid = false;
} elseif(!preg_match(’/^[A-Za-z0-9\-\.]+$/’, $domain)) {
// character not valid in domain part
$isValid = false;
} elseif(preg_match(’/\.\./’, $domain)) {
// domain part has two consecutive dots
$isValid = false;
} elseif(!preg_match(’/^(\\.|[A-Za-z0-9!#%&`_=\/$’*+?^{}|~.-])+$/’, str_replace("\\","",$local))) {
// character not valid in local part unless
// local part is quoted
if (!preg_match(’/^"(\\"|[^"])+"$/’, str_replace("\\","",$local))) {
$isValid = false;
}
}
if ($isValid && !(checkdnsrr($domain,“MX”) || checkdnsrr($domain,“A”))) {
// domain not found in DNS
$isValid = false;
}
}
return $isValid;
}
[/php]