Return an array to Ajax success with PHP

[Solarpitch]

Hi Guys,

 

I'm trying the following.. returning an array from a php function to Ajax success but the alert seems to only display undefined.

 

PHP

public function reply()
{
	$item_id = $this->uri->segment(3);
	$type = $this->uri->segment(4);

	if($type == 1){
	$data['get_news_item'] = $this->Newsletter_model->get_news_item($item_id);

	$test = array( "Paul", "Mike");

	return $test;
}
}

 

AJAX

$.ajax({
			type: "POST",
			url: "<?php echo site_url(); ?>newsletter/reply/"+id+"/"+type,
			cache: false,

			success: function (data){


				alert(data[0]); // So this should display "Paul"?



		});

 

[/code]

[wildteen88]

You need encode the array you're sending to your AJAX script as json. Use json_encode.

[Solarpitch]

Hi,

 

Just tried that there and it's still displaying as undefined.

[Solarpitch]

This is what I have..

 

	$test = array( "Paul", "Mike");

	return json_encode($test);

[Zane]

do you still have this

alert(data[0])

That zero shouldn't be there anymore... nor the brackets.

Well...maybe try

alert(data.0)

since it's json encoded.

 

Or you might have to eval it.

alert(eval(data))

[Solarpitch]

Thanks, but neither work. Still coming up as undefined. I'm puzzled with this one. 

[anupamsaha]

Please change "return" to "echo" or "print".

 

Example:

echo jeson_encode($test);

 

Thanks!

[Solarpitch]

Ah ok,

 

So I changed to echo and I seem to be getting something through now. The data is coming through as

 

"Paul, Mike" using alert(eval(data));

 

Is this correct? .. Should I not be able to go alert(data[0]) or similar to get the individual values?

[anupamsaha]

In your Ajax construct, add dataType: 'json'. This will enable jQuery to understand the data type that coming from the script. Or you can use $.getJSON instead of $.ajax. See http://api.jquery.com/jQuery.getJSON/ for more help.

 

Then, you can get the data like:

data.0

data.1

and so on.

 

Thanks!