How do I use php's "RecursiveArrayIterator" in laravel?

Question

I'm using laravel 5.6, and in my controller I have

use RecursiveIteratorIterator;

and the error I'm getting is

Class 'App\Http\Controllers\RecursiveArrayIterator' not found

So I'm being a little simplistic about it. Obviously RecursiveIteratorIterator is not a laravel function, but rather a core php function. But after reading this post https://laraveldaily.com/how-to-use-external-classes-and-php-files-in-laravel-controller/ I'm still no clearer on where to find it, or how to reference it properly.

I suppose I was expecting that all "native" php functions would just be available?

Help?

Can you show us the line that's generating the Class not found error? — ceejayoz
– ceejayoz, Commented Aug 2, 2018 at 0:22
It was $jsonIterator = new RecursiveIteratorIterator( new RecursiveArrayIterator(json_decode($request, TRUE)), RecursiveIteratorIterator::SELF_FIRST); — Maxcot
– Maxcot, Commented Aug 2, 2018 at 0:41

Blue · Accepted Answer · 2018-08-01 23:50:31Z

3

You want to put a backslash in front (No need to put use ... at the top), to specify a root/global class:

\RecursiveIteratorIterator;

For more information, refer to the PHP documentation here:

Example #3 Accessing internal classes in namespaces

<?php
namespace foo;
$a = new \stdClass;

function test(\ArrayObject $typehintexample = null) {}

$a = \DirectoryIterator::CURRENT_AS_FILEINFO;

// extending an internal or global class
class MyException extends \Exception {}
?>

edited Aug 1, 2018 at 23:50

answered Aug 1, 2018 at 23:41

Blue

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1 Comment

Maxcot Over a year ago

Ah, right. Thanks. So it seems the use \RecursiveIteratorIterator; is uneccessary (at the top), but in the body, prefix the function with a "\" does the trick.

Furquan · Accepted Answer · 2020-04-30 22:26:23Z

1

Just to be mention, it looks like you are only importing

use \RecursiveIteratorIterator;

and also calling RecursiveArrayIterator somewhere in the code. try importing both.

   use \RecursiveIteratorIterator;
   use \RecursiveArrayIterator;

answered Apr 30, 2020 at 22:26

Furquan

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