I want to be able to get a PHP script called via AJAX to return with an error code that the jQuery AJAX handler error: will handle. I don't want to use a JSON array - I'd like to keep it as clean as possible. Can someone point me in the right direction?
Thanks,
James
If you want to trigger the AJAX error handler, just pass back something other than a 200! Try this:
<?php
header("HTTP/1.0 404 Not Found");
exit();
?>
Just remember to do two things:
This should be the clean solution you are going for.
exit('That value was invalid!');, can you still use this method to trigger AJAX error handling?exit('{"error":"That value was invalid!"}')Try this:
header("HTTP/1.0 404 Not Found");
exit();
Ajax transmission does not have to be JSON. It can be xml, json, script, or html. By default AJAX uses XML (the X from AJAX stands for that). I see that you are using jQuery. If you are using ajax method you have a dataType parameter that you can modify.
As you speak of it JSON is one of cleanest in my opinion, but if you mean simple you can use text instead.
error: function is executed. Something like making the PHP exit with exit(1) or something and getting the JS to see that and throw an error to the function error: function(request, status, errorCode) in the JS. Sorry if I was unclear.EDIT: jQuery'ajax'statusCode' method works, but only in jQuery 1.5
I have tried jquery's ajax's 'statusCode' method, works now, with jquery 1.5 but did not get any results... but it should be the way to go...
if my php script does this:
//localhost/dev/false.php
header("HTTP/1.0 404 Not Found");
exit();
and my javascript does that:
$.ajax({
url:'http://localhost/dev/false.php',
statusCode: {
404: function() {
alert('page not found');
}
}
});
statusCode when I need it (very handy!). At the moment, I only need a 'true or false' error; nothing fancy ;-)$return['html'] .= where every echo should be is incredibly boring.