[php-nextgen] Cast $weight to int in HeaderSelector::getNextWeight()

[wbohlken]

This change prevents type casting issues between float and int when multiple json accept headers can be used:
Argument #2 ($weight) must be of type int, float given.

cc @jebentier @dkarlovi, @mandrean, @jfastnacht, @ybelenko, @renepardon

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[wing328]

Thanks for the PR but your commit (as shown in the Commits tab) is not linked to your Github account, which means this PR won't count as your contribution in https://github.com/OpenAPITools/openapi-generator/graphs/contributors.

Let me know if you need help fixing it.

Ref: https://github.com/OpenAPITools/openapi-generator/wiki/FAQ#how-can-i-update-commits-that-are-not-linked-to-my-github-account

[wbohlken]

Hi @wing328,

Thanks for the quick reply, I fixed the commit and pushed again.
However, the CI build seems to fail on both Linux and Windows. Do you know what causes this issue and how I can fix it?

[wing328]

thanks for the PR

is it correct to say that $currentWeight can be any value between 0 and 1 ?

ref: https://developer.mozilla.org/en-US/docs/Glossary/Quality_values

[wbohlken]

Aah I see, my bad, thought this value was between 1 and 1000. I changed the type to float in all methods

[JulianVennen]

I think the root cause of this issue is adjustWeight which has the $currentWeight parameter annotated with a float type.
This is a private method, which is only ever called with an integer value.

I think changing the parameter type of a single private method is better than changing parameter and return types of any public methods.