The implementation bundles the xxHash v0.8.0 release and includes all the variants
- xxh32, 32-bit wide
- xxh64, 64-bit wide
- xxh3, 64-bit wide
- xxh128, 128-bit wide
An initial hash state can be passed through the options arrray. An additional
functionality not targeted in this implementation is the secret support in xxh3
and xxh128. That can be added at a later point.
The serialization for xxh3 and xxh128 should not be implemented, as the
state would contain the secret. Despite the xxHash is a non crypto
algorithm, the secret would be serialized as plain text which would be
insecure.
Closes GH-6524
Signed-off-by: Anatol Belski <ab@php.net>
Previously, two useless FE_RESET_R and FE_FREE would be left over whether the empty array
was from a literal, a variable, or a class constant.
This doesn't pick up the RESET_RW case due to a weakness in our "may throw"
modeling. (for foreach by reference).
Co-Authored-By: Nikita Popov <nikita.ppv@gmail.com>
using https://gist.github.com/nikic/58d367ad605e10299f5433d2d83a0b5b
Closes GH-4949
The internal function `_readline_command_generator()` modifies the
internal array pointer of `readline_completion_function()`'s return
value. We therefore separate the array, what also avoids failing
assertions regarding the array refcount.
Closes GH-6582.
This restricts allowed usage of $GLOBALS, with the effect that
plain PHP arrays can no longer contain INDIRECT elements.
RFC: https://wiki.php.net/rfc/restrict_globals_usage
Closes GH-6487.
* mysqli_commit $flags default value is 0, not -1.
* A number of functions cannot actually return null.
* mysqli_poll parameter names were incorrect, as this function
has a different signature from select.
* fetch functions apart from fetch_all can return false on failure.
We must not assume that the first end of central dir signature in a ZIP
archive actually designates the end of central directory record, since
the data in the archive may contain arbitrary byte patterns. Thus, we
better search from the end of the data, what is also slightly more
efficient.
There is, however, no way to detect the end of central directory
signature by searching from the end of the ZIP archive with absolute
certainty, since the signature could be part of the trailing comment.
To mitigate, we check that the comment length fits to the found
position, but that might still not be the correct position in rare
cases.
Closes GH-6507.
Introduced by the recent switch to a zend_object. Unserialize the
object into a tmp_var to avoid leaving behind a stack reference.
Fixes oss-fuzz #29271.
Anatol Belski