Extracting JSON response from JSON Object in PHP [duplicate] - php

Question

for output array Instead of using json_encode, use of what.(how is output(echo) array without use of json_encode?)
i use of codeigniter.
CI_Controller:
function auto_complete(){
$hotel_search = $this->input->post('search_hotel');
echo json_encode($this->model_tour->auto_complete($hotel_search));
// if use of json_encode output is '[{"name":"salal"},{"name":"salaso"},{"name":"salasi"},{"name":"salsh"}]' if don want use of json_encode output is "Array"
}
CI_model:
function auto_complete($hotel_search)
{
$query_hotel_search = $this->db->order_by("id", "desc")->like('name', $hotel_search)->get('hotel_submits');
if($query_hotel_search->num_rows()==0){
return '0';
}else{
$data = array();
foreach ($query_hotel_search->result() as $row)
{
$data[] = array('name' => $row->name);
}
return $data;
}
}

Answer 1

If you just want to view the array, print_r($array) or var_dump($array) will work

Answer 2

I'm not sure if this is what you are looking for, but it really helps show the structure of the array/JSON:
echo "<pre>";
print_r($array);
echo "</pre>";
It will show the $array broken out and will keep the tabbing so you can see how it's nested.

Answer 3

If you want to view the contents of the array, use print_r or vardump
If you want to do something useful with the information, you're going to have to loop through the array
foreach($this->model_tour->auto_complete($hotel_search) as $key => $value){
//do something
}

Answer 4

foreach($array as $key => $value)
{
echo $key . ' = ' . $value . "\n";
}
That will give you the array as string.
You can also use print_r()
print_r($array);
or var_dump()
var_dump($array);

Answer 5

You have a few options at your disposal:
json_encode (which you mention yourself)
print_r or var_dump (timw4mail mentions this)
implode (however, this won't work for nested arrays, and it will only display the keys)
a combination of array_map (to format individual array elements using your own function) and implode (to combine the results)
write your own recursive function that flattens an array into a string

Answer 6

If you're using jQuery, any .ajax(), .get(), or .post() function will try to guess the data type being returned from the HTTP request. Set the content type of your controller to JSON:
$hotel_search = $this->input->post('search_hotel');
$this->output
->set_content_type('application/json')
->set_output( json_encode($this->model_tour->auto_complete($hotel_search)) );