Bug: form_open with no URL supplied

[richard-keasley]

PHP Version

8.1

CodeIgniter4 Version

4.5.0

CodeIgniter4 Installation Method

Manual (zip or tar.gz)

Which operating systems have you tested for this bug?

Linux

Which server did you use?

apache

Database

MySQL

What happened?

When using the helper form_open() with no URL, an error is thrown:
str_contains(): Argument #1 ($haystack) must be of type string, CodeIgniter\HTTP\SiteURI given

Steps to Reproduce

echo form_open();

Expected Output

I expect the current_url(false) (a string) to be used as a URL.

form_helper, line 34
$action = current_url(true);
returns a CodeIgniter\HTTP\SiteURI

Anything else?

No response

[datamweb]

This bug has already been fixed. See number #8736

duplicate #8729

[kenjis]

I expect the current_url(false) (a string) to be used as a URL.

It is not true. current_url(false) and (string) current_url(true) are different.