Creating a log in script, accept username OR email

[TheEddy]

$sql = "SELECT * FROM `users` WHERE `emailAddress` = '".mysql_real_escape_string($_POST['email'])."' AND `password` = '".mysql_real_escape_string(md5($_POST['password']))."'";

 

I currently have it accepting just the email address but I want it to be the email address OR the username.  How do I do this?

[OrangeTux]

Use brackets, like

 

Where ('emailadres'  = '"blabla"' OR 'username' = '"blabla'") AND 'password' = '"blabla"';

[TheEddy]

Use brackets, like

 

Where ('emailadres'  = '"blabla"' OR 'username' = '"blabla'") AND 'password' = '"blabla"';

Thanks