I am trying to debug a page that sends emails with attachments via ajax and when PHP kicks out an error, I get "Parse Error" because the error is not being sent back via JSON. Is there anyway to wrap up the PHP errors so I can alert them and see exactly what PHP errors are coming up?
What I am hoping to see in the js alert is the same thing you would see printed on the screen if this form was not submitted using ajax.
Use HTTP status codes. Simple and clean.
On the client side: You can handle the HTTP states with the success and failure callbacks of the common JavaScript frameworks.
On the server side: Use exceptions and handle them with a catch block. In the catch block set the HTTP status code and echo the exception message. Or use the less fancy set_error_handler() function and set the status code and error message in the callback function.
function json_error($msg) {
header('HTTP/1.1 500 ' . $msg);
die(json_encode(array('error' => $msg)));
}
json_error('something bad happened');
This will trigger the error: ajax callback on the JS side.
echo json_encode(array('anything' => 'really', 'any key' => 'any value'));
Will trigger the success: callback.
Fatal errors usually can't be handled *.
Try improving your code and just don't make parse errors or other fatal errors. Handling warnings and notices is easy: http://php.net/manual/en/function.set-error-handler.php
*: It's possible but it takes a lot of effort.
