* mysqli_get_server_info() cannot return null. The underlying API
is infallible.
* mysqli_select_db() func info is redundant.
* mb_detect_order() can only return array|true, not array|false.
Also make the func_info.phpt test that is supposed to catch these
kinds of issues actually work.
If the array is empty, then I'd expect that the generator is never left,
and that can be converted to a no-op and the return value would always be `null`.
Make `yield from [];` as efficient as `if (false) { yield null; }`
when opcache's sccp pass is enabled.
Closes GH-5679
Overriding the given INI values in modifier callbacks is not possible,
so instead of enforcing "normalized" internal values, we just reject
the attempted changes.
From now on, we always display the given object's type instead of just reporting "object".
Additionally, make the format of return type errors match the format of argument errors.
Closes GH-5625
If opcache.record_warnings is enabled, opcache will record
compilation warnings and replay them when the file is included
again. The primary use case I have in mind for this is automated
testing of the opcache file cache.
This resolves bug #76535.
Currently, disabling a function only replaces the internal
function handler with one that throws a warning, and a few
places in the engine special-case such functions, such as
function_exists. This leaves us with a Schrödinger's function,
which both does not exist (function_exists returns false) and
does exist (you cannot define a function with the same name).
In particular, this prevents the implementation of robust
polyfills, as reported in https://bugs.php.net/bug.php?id=79382:
if (!function_exists('getallheaders')) {
function getallheaders(...) { ... }
}
If getallheaders() is a disabled function, this code will break.
This patch changes disable_functions to remove the functions from
the function table completely. For all intents and purposes, it
will look like the function does not exist.
This also renders two bits of PHP functionality obsolete and thus
deprecated:
* ReflectionFunction::isDisabled(), as it will no longer be
possible to construct the ReflectionFunction of a disabled
function in the first place.
* get_defined_functions() with $exclude_disabled=false, as
get_defined_functions() now never returns disabled functions.
Fixed bug #79382.
Closes GH-5473.
`func_get_args()` may return `zend_empty_array`, which has refcount 2
to enforce separation. We have to cater to that during type inference
so that the optimization in the JIT macro `SEPARATE_ARRAY` doesn't
prevent the separation.
After thinking about this a bit more, the code here was too
conservative. We know that everything but an object is going to
throw, so it's sufficient to restrict the type to MAY_BE_OBJECT.
The change in the test is weird but not incorrect, because it
operates on empty inferred types, in which case the code must be
dead (which it is). We should probably add a more explicit removal
of code working on empty types.
* PHP-7.4:
Check asserts early
identation fix
Call global code of preloaded script in global context
Avoid "Anonymous class wasn't preloaded" error by lazely loading of not preloaded part of a preloaded script
Place a pi node on the non-null edge to remove a spurious
undef/null type.
Additionally, adjust the profitability heuristic to be more
accurate if the "other predecessor" writes to the variable.
Ideally this should not just consider the direct predecessors,
but it's sufficient for this case.
This partially addresses bug #79353 by removing the discrepancy
between ?? and ??=.
In order of preference, the generated name will be:
new class extends ParentClass {};
// -> ParentClass@anonymous
new class implements FirstInterface, SecondInterface {};
// -> FirstInterface@anonymous
new class {};
// -> class@anonymous
This is intended to display a more useful class name in error messages
and stack traces, and thus make debugging easier.
Closes GH-5153.
