Question

I’m running the following php script through AJAX and need to integrate some error management into it:

$exists = file_exists('../temp/' . $email . '/index.html');
if($exists) {
    echo "ERROR!!!";
} else {
    createUserDirectory($email);
}

In the AJAX success function, how can I determine whether the script ran successfully or produced an error?

If it returns OK, I want to perform the redirect as it is at the moment, but if there’s an error, I want to instead add the error to a DIV within the document (and not redirect of course…).

    $.ajax({
           type: "POST",
           url: 'generate/build.php',
           data: $("#generateStart").serialize(), // serializes the form's elements.
           success: function(data)
           {
              window.location.href="generate-site.php?user=" + data.replace(/^ +/,"") + ""; // Redirect to publish.php and remove any spaces from the URL (bug fix).
           }
         });

Thanks.

Answer 1

Your PHP script should return a 4xx or 5xx HTTP status code to indicate failure. Then, the error method of jQuery’s ajax object will be called.