Return array variable in PHP

Question

I have a function and I'd like to return a variable to another function.

Can I return the array variable so I can use the variable at other function?

public function update_mdr_pameran() {
  //global $araydatamdr;
  $this->config->set_item('compress_output', FALSE);
  $araydatamdr['mdr_debit'] = trim($this->input->post('mdr_debit'));
  $araydatamdr['mdr_debit_npg'] = trim($this->input->post('mdr_debit_npg'));
  $araydatamdr['mdr_debit_pl'] = trim($this->input->post('mdr_debit_pl'));
  return $araydatamdr;
}

When I try to use $araydatamdr in another function, it became 0.

Am I missing something?

Possible duplicate of [PHP function return array](https://stackoverflow.com/questions/5692568/php-function-return-array) — Vishnu Bhadoriya, Feb 07 '18 at 08:10
i forget to delete it, i just try to see the value, forget the echo. sorry — fahmi hammadi, Feb 07 '18 at 08:12
`$datamdr =$araydatamdr['mdr_debit'];` its how i call the array on other function — fahmi hammadi, Feb 07 '18 at 08:13
Impossible. You should call it with something like `$arr = update_mdr_pameran()` — Andreas, Feb 07 '18 at 08:16
@Andreas so those `$arr` will be the variable i use at other function? because when i try call my function it show error _Call to undefined function update_mdr_pameran()_ — fahmi hammadi, Feb 07 '18 at 08:20
@Andreas what if i use it inside other function? maybe thats why i got eror undefined function? — fahmi hammadi, Feb 07 '18 at 08:30
I think this is what everyone is missing: where is this function, and where is the other function you are trying to call this function in? Is it in the same controller or model? If so `$arr = $this->update_mdr_pameran(); print_r($arr); echo $arr['mdr_debit'];` will work. Assuming that *there is* post data, you should see some text, otherwise you will have empty values but `print_r` should still show `Array ( 'mdr_debit' => '', {.etc.})`. — Alex, Feb 07 '18 at 08:49

Touheed Khan · Accepted Answer · 2018-02-07T10:41:41.970

You can achieve this by calling function and setting its return value to another variable.

Method 1 :

class Test extends CI_Controller {

        public function __construct() {
            parent::__construct();    
        }

        public function update_mdr_pameran() {
                //global $araydatamdr;
                $this->config->set_item('compress_output', FALSE);
                $araydatamdr['mdr_debit'] = trim($this->input->post('mdr_debit'));
                $araydatamdr['mdr_debit_npg'] = trim($this->input->post('mdr_debit_npg'));
                $araydatamdr['mdr_debit_pl'] = trim($this->input->post('mdr_debit_pl'));
                return $araydatamdr;
        }

        public function test_func() {
            $araydatamdr = $this->update_mdr_pameran();
            var_dump($araydatamdr);
        }

    }

Or you can also set $araydatamdr to $this reference.

Method 2 :

class Test extends CI_Controller {

    public $araydatamdr;
    public function __construct() {
        parent::__construct();    
        $this->araydatamdr = [];
    }

    public function update_mdr_pameran() {
            $this->config->set_item('compress_output', FALSE);
            $this->araydatamdr['mdr_debit'] = trim($this->input->post('mdr_debit'));
            $this->araydatamdr['mdr_debit_npg'] = trim($this->input->post('mdr_debit_npg'));
            $this->araydatamdr['mdr_debit_pl'] = trim($this->input->post('mdr_debit_pl'));
    }

    public function test_func() {
        $this->update_mdr_pameran();
        var_dump($this->araydatamdr);

    }

}

pr1nc3 · Answer 2 · 2018-02-07T08:30:16.813

0

Cross out the echo $araydatamdr; Arrays can be printed using var_dump or print_r. Also you can return an array in php but personally i prefer to json_encode it first so i return a json as the output of my function something like:

return json_encode($araydatamdr);

Then it's a simple function call.

I don't know your project structure but i am giving general guidance. Apart from that i don't see anything else that could block your function.

I edit my post because i saw the issue is to call the function. There are 2 ways depending where you call it. If the function is in the same class as the other function you want to call it you simple go for :

$result=$this->update_mdr_pameran();

I see that your function has no arguments so you don't need to set any. If it's in another file:

1) include your php file at top like :

require 'myphpclass.php';

*tip make sure your path is right.

2) Create a new class object and then call the function like :

$class= new myClass();
$result=$class->update_mdr_pameran();

edited Feb 07 '18 at 08:30

answered Feb 07 '18 at 08:11

pr1nc3

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so how to get the value from those json in other function? – fahmi hammadi Feb 07 '18 at 08:22
to see the info of a json you need also to print_r it. If you want to treat it as an array you can json_decode it or simple you can access the json fields (that's on you). A small tip is when you decode you always use json_decode($myjson,true) to get an array and not an std class object. – pr1nc3 Feb 07 '18 at 08:24
actually i want to know how to use those array variable in other function – fahmi hammadi Feb 07 '18 at 08:32
I edited my post on how to call a function. How you want to use them it's up to you. As i said above even if it's json or array it's up to you on how you treat it. But you must follow the arrays rules. – pr1nc3 Feb 07 '18 at 08:33

Return array variable in PHP

2 Answers2