CodeIgniter unable to get Ajax data into variable - php

Question

I have an Ajax post from a js file. This all works, but I am not able to set data to a variable and echo this to the screen.
I guess I do not know how to set class variables?
get Ajax code:
public function get_info()
{
// $test = $this->input->post();
var_dump($this->input->post());
$original_property_text = $this->input->post('original_property_text');
// set_ajax($original_property_text);
//$new_property_text = $this->input->post('new_property_text');
//return $test;
}
class variables and constructor:
class Users extends CI_Controller{
// gobal vars
var $new_property_text = '';
var $original_property_text = '';
var $changes = array();
function __construct() {
parent::__construct();
//$changes[] = $this->get_info();
}
*** edit *****
ajax code:
$.ajax({
url: base_url + 'users/get_info',
type: 'POST',
data: {
'original_property_text': $original_property_text,
'new_property_text': $new_property_text
},
success: function(data){
alert(data); // for testing
},
error: function(jqXHR, textStatus, errorThrown){
alert(textStatus, errorThrown);
}
});

Answer 1

Quick answer, use this in your PHP :
public function get_info()
{
// better to use json when you need to return array
header('Content-Type: application/json');
echo json_encode( $this->input->post() );
exit();
}
In your ajax code (using jQuery framework) :
// call your controller in ajax
$.post('yourUrlHere', $('#yourForm').serialize(),
function(data) {
console.log(data);
// you manipulate json, so you can use : alert(data.property);'
}, 'json');

Answer 2

'$' defines variable so convert your php value to javascript object.
data: {original_property_text: '<?=$original_property_text?>', new_property_text: '<?=$new_property_text?>'},
Or,
var original_property_text = '<?=$original_property_text?>';
var new_property_text = '<?=$new_property_text?>';
var base_url = '<?=base_url();?>';
$.ajax({
url: base_url + 'users/get_info',
type: 'POST',
data: {original_property_text: original_property_text, new_property_text: new_property_text},
success: function(data){
alert(data); // for testing
},
error: function(jqXHR, textStatus, errorThrown){
alert(textStatus, errorThrown);
}
});
And Get Using Your get function
print_r($_POST);exit