Fix GH-8074: Wrong type inference of range() result

If either the first or second operand of `range()` may be a string, we
must not exclude the possibility that the result may be an arra

Fix GH-8074: Wrong type inference of range() result

If either the first or second operand of `range()` may be a string, we
must not exclude the possibility that the result may be an array of
longs.

Closes GH-8131.

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Fix GH-7759: Incorrect return types for hash() and hash_hmac()

`hash()` and `hash_hmac()` never return `false`; only `hash_file()` and
`hash_hmac_file()` return `false` in case the data

Fix GH-7759: Incorrect return types for hash() and hash_hmac()

`hash()` and `hash_hmac()` never return `false`; only `hash_file()` and
`hash_hmac_file()` return `false` in case the data cannot be read.

Closes GH-7760.

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Fix a few func info entries

Fix func info for str_replace() and str_ireplace()

Remove incorrect refcount info for addcslashes()

This function may return the input string.

imagecolorsforindex() cannot return false

Sync ext/mysqli optimizer func info entries with the stubs

Fix a few optimizer func info

Closes GH-7396

Fix bug #81272: Fix func info for functions returning EMPTY_ARRAY

The empty array has refcount > 1, so we should indicate this in
func info. In most cases this renders the func info redu

Fix bug #81272: Fix func info for functions returning EMPTY_ARRAY

The empty array has refcount > 1, so we should indicate this in
func info. In most cases this renders the func info redundant,
so drop it entirely.

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mysqli_get_client_info() cannot return null

This method is already deprecated

Update func info for mysqli_connect

Remove incorrect func info for array_reduce() and pos()

These are both clearly not rc1 functions. As they are otherwise
UNKNOWN_INFO, I'm just dropping them entirely.

filter_var_array() may return array_of_ref

This function preserves references in the input array.

fetch_assoc may return array_key_long

If the column name is a number (which is possible at least via
AS clauses), then symtable canonicalization will convert it into
an integer key.

Remove assert_options() return value info

The ASSERT_CALLBACK value is not validated at all -- it's possible
to set it to an arbitrary value. As such, the function can also
return an

Remove assert_options() return value info

The ASSERT_CALLBACK value is not validated at all -- it's possible
to set it to an arbitrary value. As such, the function can also
return any value or type (even without outright abuse, the opcache
func info was wrong in that the return can be rcn, and the array
can be array_of_ref).

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password_get_info() may return array_of_null

The algo key is set to null if the algorithm can't be detected.

getdate() may return array_key_long

This function mostly uses string keys, but the timestamp is
returned at key 0 (why???)

pg_connect() may return rcn

Without CONNECT_FORCE_NEW, pg_connect() may resuse an existing
connection and refcount may be larger than one.

Update func info after password_get_info() change

Fix/improve mysqli stubs

* 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

Fix/improve mysqli stubs

* 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.

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Promote pack/unpack format errors

Errors related to invalid format strings (unlike data mismatch
errors) should throw ValueError.

Closes GH-6185.

Use C zpp for get_class_vars()

Support uuencoding empty string

Cross checking implementations from other languages, empty strings
are always allowed. PHP's output is peculiar due to it's insistence
to encode a tra

Support uuencoding empty string

Cross checking implementations from other languages, empty strings
are always allowed. PHP's output is peculiar due to it's insistence
to encode a trailing \0, but otherwise sensible and does round-trip
as expected.

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stream_bucket_new() cannot return false

php_stream_bucket_new() is infallible.

stream_get_transports/wrappers cannot return false

These may return an empty array, but not false.