Ajax和Jquery - 成功

Question

I'm using Ajax to call a php site, but I want to do something "on success" and "on error".

By now, this is my js:

$("#votePositive").click(function(){
            var idEntrada = $('.entry').attr('id');
            var url = "{{ path('moderar_entrada_votacion') }}";
            var eleccion=1;
            $.ajax({
                type: "POST",
                url: url, 
                data: {
                   idEntrada: idEntrada,
                   eleccion: eleccion
                },error: function(){alert("eee")}, success: function(){alert("bbb")}
            });  
        });

So this is my php code (just a return, just want to try if the connection works)

return true

But my site popups the alert "eee".

I've tried to:

return false

But same is happening, eee alert is comming up.

If I just remove the "return" statment from the php file, it shows up the "bbb" alert.

How can I deal with those returns? How can I tell Ajax that it went OK or Not?

Answer 1

It's not to do with returning true or false from your PHP. Instead it's about the HTTP response code and content returned. For example, if your PHP is to simply:

echo 'Hello world'

success will be called. Although you will of course want to return (probably a JSON representation of) your actual dataset.