Paginator::resolveCurrentPage returns unexpected default value

[brausepulver]

• Laravel Version: 9.17.0
• PHP Version: 8.1.2

Description:

Hi, this is a very minor issue. I was trying check whether a route is paginated using Illuminate\Pagination\Paginator::resolveCurrentPage(default: false). Even though no pagination is ongoing, this returns 1 rather than false. Maybe it would be possible to return null in the default currentPageResolver:

framework/src/Illuminate/Pagination/PaginationState.php

Lines 19 to 27 in c41c1b3

	Paginator::currentPageResolver(function ($pageName = 'page') use ($app) {
	$page = $app['request']->input($pageName);
	if (filter_var($page, FILTER_VALIDATE_INT) !== false && (int) $page >= 1) {
	return (int) $page;
	}
	return 1;
	});

The default value passed to resolveCurrentPage could then be returned by checking for null:

framework/src/Illuminate/Pagination/AbstractPaginator.php

Lines 505 to 512 in b9203fc

	public static function resolveCurrentPage($pageName = 'page', $default = 1)
	{
	if (isset(static::$currentPageResolver)) {
	return (int) call_user_func(static::$currentPageResolver, $pageName);
	}
	return $default;
	}

Steps To Reproduce:

1. In a route, invoke Illuminate\Pagination\Paginator::resolveCurrentPage(default: false) when there is no pagination.
2. 1 is returned, rather than false.

[driesvints]

This value should always be an int higher than 1:

framework/src/Illuminate/Pagination/AbstractPaginator.php

Line 502 in c99868f

* @param int $default

[brausepulver]

Passing any integer matching that constraint results in the same behaviour. The parameter is useless unless currentPageResolver is unset.