JQuery/Ajax: Error Handling

Question

$.ajax({  
  type: 'POST',  
  url: 'doSomething.php',  
  data: $('#form').serialize(),
  dataType: "json",  
  success: function(data) {
    //Success Message
  },  
  error: function() {
   //Error Message          
  }  
});

I have a form input going to a PHP page which I error check on that page. My question is can I send errors (data array) through error: function(data) { or is it ONLY for actual errors with Ajax not going through correctly?

If that's the case would I be able to send the error array the success function?

Not sure on how to go about this.

If I could send data from my PHP page to the error function, I wouldn't even know how on the PHP page.

Possible Duplicate

Pankit Kapadia
– Pankit Kapadia

2012-12-14 07:04:55 +00:00
Commented Dec 14, 2012 at 7:04 — Pankit Kapadia
– Pankit Kapadia, Commented Dec 14, 2012 at 7:04

webnoob · Accepted Answer · 2012-12-14 07:19:40Z

4

You can raise your own errors, if you do this:

$.ajax({  
  type: 'POST',  
  url: 'doSomething.php',  
  data: $('#form').serialize(),
  dataType: "json",  
  success: function(data) {
    //Success Message
  },  
  error: function(req, status, error) {
   alert(req.responseText);      
  }  
});

when you throw an exception in your app it will be alerted out. For instance, in PHP you could do:

throw new Exception("Something bad happened");

You can see more about exceptions here

edited Dec 14, 2012 at 7:19

answered Dec 14, 2012 at 7:04

webnoob

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2 Comments

Yonn Trimoreau Over a year ago

Thank you, your solution is nowhere else written on the web, whereas it's simple. jQuery/ajax tutorials are wired.

webnoob Over a year ago

No problem at all, glad it helped.

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