Use "must not" instead of "cannot" wording

Add %0 format to run-tests.php

This format matches against null bytes, and prevents the test
expectation from being interpreted as binary data.

bless_tests.php will automaticall

Add %0 format to run-tests.php

This format matches against null bytes, and prevents the test
expectation from being interpreted as binary data.

bless_tests.php will automatically replace \0 with %0 as well.

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Deprecate passing null to non-nullable arg of internal function

This deprecates passing null to non-nullable scale arguments of
internal functions, with the eventual goal of making the b

Deprecate passing null to non-nullable arg of internal function

This deprecates passing null to non-nullable scale arguments of
internal functions, with the eventual goal of making the behavior
consistent with userland functions, where null is never accepted
for non-nullable arguments.

This change is expected to cause quite a lot of fallout. In most
cases, calling code should be adjusted to avoid passing null. In
some cases, PHP should be adjusted to make some function arguments
nullable. I have already fixed a number of functions before landing
this, but feel free to file a bug if you encounter a function that
doesn't accept null, but probably should. (The rule of thumb for
this to be applicable is that the function must have special behavior
for 0 or "", which is distinct from the natural behavior of the
parameter.)

RFC: https://wiki.php.net/rfc/deprecate_null_to_scalar_internal_arg

Closes GH-6475.

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ValueError for empty path in stream code

Closes GH-5902

Remove unnecessary PHPDoc-alike blocks from tests

Closes GH-5759

Make error messages more consistent by fixing capitalization

Closes GH-5066 As a first step, let's capitalize their initial letter when it is applicable.

Adjust tests for zpp TypeError change

Make (v)fprintf tests more robust

By using a separate file for each test. Also drop some unnecessary
SKIPIF checks for file creation. We assume that files can be created in
the test

Make (v)fprintf tests more robust

By using a separate file for each test. Also drop some unnecessary
SKIPIF checks for file creation. We assume that files can be created in
the test directories all over the place, so don't check for it here.

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Sync leading and final newlines in *.phpt sections

This patch adds missing newlines, trims multiple redundant final
newlines into a single one, and trims redundant leading newlines in al

Sync leading and final newlines in *.phpt sections

This patch adds missing newlines, trims multiple redundant final
newlines into a single one, and trims redundant leading newlines in all
*.phpt sections.

According to POSIX, a line is a sequence of zero or more non-' <newline>'
characters plus a terminating '<newline>' character. [1] Files should
normally have at least one final newline character.

C89 [2] and later standards [3] mention a final newline:
"A source file that is not empty shall end in a new-line character,
which shall not be immediately preceded by a backslash character."

Although it is not mandatory for all files to have a final newline
fixed, a more consistent and homogeneous approach brings less of commit
differences issues and a better development experience in certain text
editors and IDEs.

[1] http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap03.html#tag_03_206
[2] https://port70.net/~nsz/c/c89/c89-draft.html#2.1.1.2
[3] https://port70.net/~nsz/c/c99/n1256.html#5.1.1.2

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Trim trailing whitespace in *.phpt

Fix typo and don't use 'a' as an invalid filename since it is the default
gcc binary filename and is thus not unlikely to be left lying around in the
build dir which cause these tests to fail

- fix text (encoding was broken with the previous commit)

- useless skipif

- Fixed tests

New version of addcslashes.phpt, md5_file.phpt, str_replace.phpt, substr.phpt, chr_ord.phpt, strpos.phpt, strstr.phpt, trim1.phpt, implode1.phpt, str_repeat.phpt, substr_count.phpt