Fix GH-15613: unpack on format hex strings repeater value.

close GH-15615

Merge branch 'PHP-8.1' into PHP-8.2

* PHP-8.1:
Fix undefined behaviour in unpack()

Fix undefined behaviour in unpack()

atoi()'s return value is actually undefined when an underflow or
overflow occurs. For example on 32-bit on my system the overflow test
which input

Fix undefined behaviour in unpack()

atoi()'s return value is actually undefined when an underflow or
overflow occurs. For example on 32-bit on my system the overflow test
which inputs "h2147483648" results in repetitions==2147483647 and on
64-bit this gives repetitions==-2147483648. The reason the test works on
32-bit is because there's a second undefined behaviour problem:
in case 'h' when repetitions==2147483647, we add 1 and divide by 2.
This is signed-wrap undefined behaviour and accidentally triggers the
overflow check like we wanted to.

Avoid all this trouble and use strtol with explicit error checking.

This also fixes a semantic bug where repetitions==INT_MAX would result
in the overflow check to trigger, even though there is no overflow.

Closes GH-10943.

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zend introduce const GNUC attribute. sub optimisation where there is no pointers, nor particular memory layout, thread local/volatile ... involved. usage concealed for now into little pack helpers.

zend introduce const GNUC attribute. sub optimisation where there is no pointers, nor particular memory layout, thread local/volatile ... involved. usage concealed for now into little pack helpers.
Closes #9326.

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Fix [-Wundef] warnings in standard extension

fix GH-7899 Regression in unpack for negative int value

fix GH-7899 Regression in unpack for negative int value

Fixed some spaces used instead of tabs

Optimize unpack() for named fields (#6958)

Create name using either zend_init_string_fast (no repetitions) or by concatenating the name with zend_print_ulong_to_buf. This is much more effici

Optimize unpack() for named fields (#6958)

Create name using either zend_init_string_fast (no repetitions) or by concatenating the name with zend_print_ulong_to_buf. This is much more efficient than using snprintf. We also avoid repeated strlen() calculations.

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Simplify unpack logic (#6908)

- move endiannes check to compile time
- remove php_unpack function
- the compiler take care of sign extension

Update http->https in license (#6945)

1. Update: http://www.php.net/license/3_01.txt to https, as there is anyway server header "Location:" to https.
2. Update few license 3.0 to 3.01 as

Update http->https in license (#6945)

1. Update: http://www.php.net/license/3_01.txt to https, as there is anyway server header "Location:" to https.
2. Update few license 3.0 to 3.01 as 3.0 states "php 5.1.1, 4.1.1, and earlier".
3. In some license comments is "at through the world-wide-web" while most is without "at", so deleted.
4. fixed indentation in some files before |

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Make convert_to_*_ex simple aliases of convert_to_*

Historically, the _ex variants separated the zval first, if a
conversion was necessary. This distinction no longer makes sense
sin

Make convert_to_*_ex simple aliases of convert_to_*

Historically, the _ex variants separated the zval first, if a
conversion was necessary. This distinction no longer makes sense
since PHP 7.

The only difference that was still left is that _ex checked whether
the type is the same first, but the usage of these macros did not
actually distinguish on whether such an inlined check is valuable
or not in a given context.

Also drop the unused convert_to_explicit_type macros.

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Fix double free on unpack error

Promote pack/unpack format errors

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

Closes GH-6185.

Convert unpack offset warning to ValueError

Remove proto comments from C files

Closes GH-5758

Use RETURN_THROWS() after try_convert_to_string()

Merge branch 'PHP-7.4'

* PHP-7.4:
Fix #78833: Integer overflow in pack causes out-of-bound access

Merge branch 'PHP-7.3' into PHP-7.4

* PHP-7.3:
Fix #78833: Integer overflow in pack causes out-of-bound access

Merge branch 'PHP-7.2' into PHP-7.3

* PHP-7.2:
Fix #78833: Integer overflow in pack causes out-of-bound access

Fix #78833: Integer overflow in pack causes out-of-bound access

We check for potential signed integer overflow, and bail out
gracefully, in that case.

Remove mention of PHP major version in Copyright headers

Closes GH-4732.

Merge branch 'PHP-7.4'

Allow exceptions in __toString()

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

And convert some object to string conversion related recoverable
fatal errors into Error excep

Allow exceptions in __toString()

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

And convert some object to string conversion related recoverable
fatal errors into Error exceptions.

Improve exception safety of internal code performing string
conversions.

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Finish func_info updates for ext/standard