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Invalid ID or password. Please try again. Open Questions How is this significantly different than the plethora of HTTP status codes? Most of the examples currently on this page are just failed logins. login failed message example DerrickPallas 09:31, 14 Jul 2007 (PDT) 401 Unauthorized 402 Payment Required 403 Forbidden HTTP Status Code Information ... I used login errors just because they were easy to generate (see note above). It's actually kind of hard, as a user of these services, to generate a database connection error. Form validation errors are a little easier; I used an example from Paypal. I can go back and try to make some other errors happen, if you like, too. I think that, first of all, many sites don't return a 4xx or 5xx error code when something goes wrong; they return 200 with an HTML error message as part of the content (often a very small part of the content, wrapped with the site's "skin" of header, footer, and navigational HTML). I think there's a case to be made that the response for a POSTed form with a mis-formatted phone number in it should have a status code of 400 or 409, but that's simply not how most Web sites work. I also think that even if some Web site is perfectly RESTful and uses the correct HTTP status messages religiously, there's still some value in a specific section of the resulting page that defines the
Services SOAP WSDLXMLLogin form with Error Messages and Preserving User Input : Login Form«Login Authentication«PHPPHPLogin AuthenticationLogin FormLogin form with Error Messages and Preserving User Input
How To Display Error Message In Html Using Php
messages $errors = array(); $p =& $_POST; if (count ($p) > 0){
Login Error Message In Jsp
if (!isset ($p['username']) || (trim ($p['username']) == '')){ $errors[] = 'You must enter a username.'; }elseif{ ((strlen ($p['username']) < 8) || http://microformats.org/wiki/error-message-examples (ereg ('[^a-zA-Z0-9]', $p['username']))){ $errors[] = 'You did not enter a valid username. Usernames must be at least eight characters long and can only contain letters and digits.'; } if (!isset ($p['password']) || (trim ($p['password']) == '')){ $errors[] = 'You must enter a http://www.java2s.com/Code/Php/Login-Authentication/LoginformwithErrorMessagesandPreservingUserInput.htm password.'; }elseif ((strlen ($p['password']) < 8) || (ereg ('[^[:alnum:][:punct:][:space:]]', $p['password']))){ $errors[] = 'You did not enter a valid password. Passwords must be at least eight characters long and can only contain letters, digits, punctuation and spaces.'; } if (count ($errors) == 0) { $r = validate_user ($p['username'], $p['password']); if ($r == false){ $errors[] = 'Login failed. Username/password not found.'; } else { print ('
Congratulations Congratulations!
You logged in!
'); exit; } } } ?>
Login Form Login Form
0) { $n = count ($errors); for ($i = 0; $i < $n; $i++){ print '
' . $errors[$i] . ''; } } ?>