Help wantedenhancementinternal stubs/callmap
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説明
Example: https://psalm.dev/r/c8e212f816
Psalm assumes the PHP documentation is correct. It is not. Specifically the Mysqli object has a lot of shady stuff going on with strange states of the connection.
In PHP 7.4 sqlstate is false in an empty Mysqli object while client_info is a string. client_info will also be false when a connection is attempted and fails. To make matters worse, the behavior of the class in edge cases like this changes between PHP versions. (I know it's different in PHP 8 and in older PHP 5 versions)