Array query params redirection test[] to test[0]

[ThibaudDauce]

Version:

• @inertiajs/vue3 version: 2.0.3

Describe the problem:

Inertia replaces array query params with number keys: it redirects from http://localhost:8000/?test[]=foobar to http://localhost:8000/?test[0]=foobar

Steps to reproduce:

laravel new test
# Select Breeze -> Inertia Vue
cd test
npm install
composer run dev

Visit http://localhost:8000/?test[]=foobar.

Inertia redirects to http://localhost:8000/?test[0]=foobar

[Verox001]

This is actually a problem with Laravel itself, as Laravel retrieves query parameters like this:

$test = $_GET['test'];

While $_GET looks something like that:

Array
(
    [test] => Array
        (
            0 => foobar
        )
)

The reason for the index 0 being added is quite simple:
PHP only works with arrays that have keys. If no keys are found, PHP will automatically add them, starting from 0.

For example, if you pass the query parameters:
?test[0]=foo&test[]=bar,
it will redirect back as:
?test[0]=foo&test[1]=bar.

This won't be solved by Inertia as it's just a PHP convention.
Maybe you can let me know what you're trying to achieve, and we can find another way or a workaround.