how to convert array of objects to key value pairs in php

Question

I have an array of objects and I need to convert to key value pairs, my code is

i have a model as: model setting.php

public function currency_info(){
     $currency_info = [
                ['code' => 'AED', 'name' => 'United Arab Emirates Dirham'],
                ['code' => 'ANG', 'name' => 'NL Antillian Guilder'],
                ['code' => 'ARS', 'name' => 'Argentine Peso'],
                ['code' => 'AUD', 'name' => 'Australian Dollar'],
                ['code' => 'BRL', 'name' => 'Brazilian Real'],
              ]
}

and controller as:

SettingController.php

public function index()
{
        $setting = new Setting();
        $currency_list = $setting->currency_info();

        $result = [];
        foreach ($currency_list as $currency) {
            $result[$currency->code] = $currency->name;
        }

        return $result;
}

i get the following error:

ErrorException (E_NOTICE) Trying to get property 'code' of non-object

Where am I doing wrong and how can I correct this?

Laravel has built in method to convert into array just use $setting->currency_info()->toArray(); — Saad Suri
– Saad Suri, Commented Aug 1, 2018 at 7:11

Nigel Ren · Accepted Answer · 2018-08-01 07:22:32Z

9

As the data your trying to iterate over is an array (from an object) the notation should be...

$result[$currency['code']] = $currency['name'];

Or if you want a shorter version (depends on version of PHP), use array_column()...

$result = array_column($currency_list, 'name', 'code');

edited Aug 1, 2018 at 7:22

answered Aug 1, 2018 at 7:11

Nigel Ren

57.3k11 gold badges49 silver badges59 bronze badges

Sign up to request clarification or add additional context in comments.

3 Comments

Prakash Poudel Over a year ago

$result[$currency['code']] = $currency['name']; works great, thank you for your answer

Prakash Poudel Over a year ago

this is the best answer

Nigel Ren Over a year ago

It's annoying at times as people will downvote and not leave feedback. It's just something you will unfortunately have to get used to.

Vahe Shak · Accepted Answer · 2018-08-01 07:14:28Z

2

foreach ($currency_info as $currency) {
    $result[$currency['code']] = $currency['name'];
}

answered Aug 1, 2018 at 7:14

Vahe Shak

1,0878 silver badges19 bronze badges

Comments

Lovepreet Singh · Accepted Answer · 2018-08-01 07:15:23Z

2

currency_info function return array, so treat it as array. You are using $currency->code to access code key from array, use as $currency["code"] instead.

public function index() {
    $setting = new Setting();
    $currency_list = $setting->currency_info();

    $result = [];
    foreach ($currency_list as $currency) {
        $result[$currency["code"]] = $currency["name"];
    }
    return $result;
}

answered Aug 1, 2018 at 7:15

Lovepreet Singh

4,8701 gold badge21 silver badges39 bronze badges

Collectives™ on Stack Overflow

how to convert array of objects to key value pairs in php

3 Answers 3

3 Comments

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

3 Comments

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related