Pass js array to php and parse it

Question

So this is my php function. First I get the variable

    $this->sphotoRepository->save($command->sphoto, $status->id, $command->label, $command->sphoto_categories, $command->sphoto_tagged_users, $command->u18);

Which passes to the final function

public function save(UploadedFile $file = null, $statusId, $label, $sphoto_categories, $sphoto_tagged_users, $u18)
....
if (isset($sphoto_categories) && !empty($sphoto_categories)) {
            foreach ($sphoto_categories as $sphoto_category_id)
            {
                $category = StatusPhotoCategory::findOrFail($sphoto_category_id);
                $sphoto->categories()->attach($category->id);
            }
        }

And here is how I pass my data

post.sphoto_categories = Array("2");

What I would expect as a result (Postman form submit does confirm it. But I am using sphoto_categories[] ... in there to create the array. Can't do that in JS)

'sphoto_categories' => 
 array (
    0 => '2',
  )

What I get when form submit via js

'sphoto_categories' => '["3"]'

And the question is?

Epodax
– Epodax

2015-04-28 09:38:24 +00:00
Commented Apr 28, 2015 at 9:38 — Epodax
– Epodax, Commented Apr 28, 2015 at 9:38

Stepashka · Accepted Answer · 2015-04-28 09:42:19Z

1

What you receive is JSON representation of Array. You need to do json_decode() to get array which you expect.

So add the following lines to the code. Do the validation that variable is decoded correctly. json_decode returns null if JSON is not well formatted. You can check the value of json_last_error() to get idea what went wrongly.

$categoriesArray = json_decode($command->sphoto_categories);
// Validation.
$this->sphotoRepository->save($command->sphoto, $status->id, $command->label, $categoriesArray, $command->sphoto_tagged_users, $command->u18);

answered Apr 28, 2015 at 9:42

Stepashka

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3 Comments

Dominik Vogt Over a year ago

Working so far, but how to catch exception? Because it seems like i cannot catch it with try/catch

Stepashka Over a year ago

There is no exception. You need to check the following null === $categoriesArray and handle the error in this case.

Dominik Vogt Over a year ago

Im checking is_string($sphoto_categories) and then decode it. Otherwise i get json_decode() expects parameter 1 to be string, array given (In postman of corse, other problem is solved for me)

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