Instead mark name/value as readonly and the class as
NO_DYNAMIC_PROPERTIES. This gives us the desired limitations
using native features.
In fact, this also fixes a bug where opcache cache slot merging
might result in a write to the name/value properties being
allowed. The readonly implementation handles this case correctly.
The deprecation message was originally introduced in 3e6b447 (#6494).
I first encountered this notice when testing the MongoDB extension
with PHP 8.1, which produced many duplicate messages that provided
no detail about the particular class that needed to be fixed.
Closes GH-7346.
This adds support for internal enums with the same basic approach
as userland enums. Enum values are stored as CONSTANT_AST and
objects created during constant updating at runtime. This means
that we need to use mutable_data for internal enums.
This just adds basic support and APIs, it does not include the
stubs integration from #7212.
Closes GH-7302.
If Serializable is implemented, require that __serialize() and
__unserialize() are implemented as well, else issue a deprecation
warning.
Also deprecate use of PDO::FETCH_SERIALIZE.
RFC: https://wiki.php.net/rfc/phase_out_serializable
Closes GH-6494.
