Merge branch 'PHP-8.1'

* PHP-8.1:
Clarify that preg_match_all() cannot return null

Merge branch 'PHP-8.0' into PHP-8.1

* PHP-8.0:
Clarify that preg_match_all() cannot return null

Clarify that preg_match_all() cannot return null

Add support for PCRE n modifier

Add support for /n (NO_AUTO_CAPTURE) modifier, which makes simple
`(xyz)` groups non-capturing.

Closes GH-7583.

Use more compact representation for packed arrays.

- for packed arrays we store just an array of zvals without keys.
- the elements of packed array are accessible throuf as ht->arPacked[

Use more compact representation for packed arrays.

- for packed arrays we store just an array of zvals without keys.
- the elements of packed array are accessible throuf as ht->arPacked[i]
instead of ht->arData[i]
- in addition to general ZEND_HASH_FOREACH_* macros, we introduced similar
familied for packed (ZEND_HASH_PACKED_FORECH_*) and real hashes
(ZEND_HASH_MAP_FOREACH_*)
- introduced an additional family of macros to access elements of array
(packed or real hashes) ZEND_ARRAY_ELEMET_SIZE, ZEND_ARRAY_ELEMET_EX,
ZEND_ARRAY_ELEMET, ZEND_ARRAY_NEXT_ELEMENT, ZEND_ARRAY_PREV_ELEMENT
- zend_hash_minmax() prototype was changed to compare only values

Because of smaller data set, this patch may show performance improvement
on some apps and benchmarks that use packed arrays. (~1% on PHP-Parser)

TODO:
- sapi/phpdbg needs special support for packed arrays (WATCH_ON_BUCKET).
- zend_hash_sort_ex() may require converting packed arrays to hash.

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fix for pcre2 10.38

Merge branch 'PHP-8.0' into PHP-8.1

* PHP-8.0:
fix for pcre2 10.38
fix for pcre2 10.38

fix for pcre2 10.38

fix for pcre2 10.38

Merge branch 'PHP-8.0'

* PHP-8.0:
Fix #81243: Too much memory is allocated for preg_replace()

Merge branch 'PHP-7.4' into PHP-8.0

* PHP-7.4:
Fix #81243: Too much memory is allocated for preg_replace()

Fix #81243: Too much memory is allocated for preg_replace()

Trimming a potentially over-allocated string appears to be reasonable,
so we drop the condition altogether.

We also r

Fix #81243: Too much memory is allocated for preg_replace()

Trimming a potentially over-allocated string appears to be reasonable,
so we drop the condition altogether.

We also re-allocate twice the size needed in the first place, and not
roughly tripple the size.

Closes GH-7231.

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Fixed some spaces used instead of tabs

pcre: Workaround bug #81101

The way to fix it is to disable certain match start optimizaions. The
observed performance impact appears negligible ATM, compared to the
functional regre

pcre: Workaround bug #81101

The way to fix it is to disable certain match start optimizaions. The
observed performance impact appears negligible ATM, compared to the
functional regression revealed.

A possible side effect might occur if a pattern uses (*COMMIT) or
(*MARK), which is however not a very broadly used syntax in PHP. Still
this should be observed and handled by possibly adding a possibility to
reverse PCRE2_NO_START_OPTIMIZE on the user side.

One test shows a behavior change, where instead of int 0 the match
would produce an error and return false. Except strict comparison
is used, this should be acceptable.

Signed-off-by: Anatol Belski <ab@php.net>
(cherry picked from commit d188ca7688315e3d32d41a32e0ce7b1f9bffb4cf)
Signed-off-by: Anatol Belski <ab@php.net>

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pcre: Workaround bug #81101

The way to fix it is to disable certain match start optimizaions. The
observed performance impact appears negligible ATM, compared to the
functional regre

pcre: Workaround bug #81101

The way to fix it is to disable certain match start optimizaions. The
observed performance impact appears negligible ATM, compared to the
functional regression revealed.

A possible side effect might occur if a pattern uses (*COMMIT) or
(*MARK), which is however not a very broadly used syntax in PHP. Still
this should be observed and handled by possibly adding a possibility to
reverse PCRE2_NO_START_OPTIMIZE on the user side.

One test shows a behavior change, where instead of int 0 the match
would produce an error and return false. Except strict comparison
is used, this should be acceptable.

Signed-off-by: Anatol Belski <ab@php.net>
(cherry picked from commit d188ca7688315e3d32d41a32e0ce7b1f9bffb4cf)
Signed-off-by: Anatol Belski <ab@php.net>

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pcre: Apply upstream patch for bug #81101 to bundled libpcre

Signed-off-by: Anatol Belski <ab@php.net>

pcre: Workaround bug #81101

The way to fix it is to disable certain match start optimizaions. The
observed performance impact appears negligible ATM, compared to the
functional regre

pcre: Workaround bug #81101

The way to fix it is to disable certain match start optimizaions. The
observed performance impact appears negligible ATM, compared to the
functional regression revealed.

A possible side effect might occur if a pattern uses (*COMMIT) or
(*MARK), which is however not a very broadly used syntax in PHP. Still
this should be observed and handled by possibly adding a possibility to
reverse PCRE2_NO_START_OPTIMIZE on the user side.

One test shows a behavior change, where instead of int 0 the match
would produce an error and return false. Except strict comparison
is used, this should be acceptable.

Signed-off-by: Anatol Belski <ab@php.net>

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Remove 'register' type qualifier (#6980)

The compiler should be smart enough to optimize this on its own

Mark various functions with void arguments.

This fixes a bunch of [-Wstrict-prototypes] warning,
because in C func() and func(void) have different semantics.

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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Merge branch 'PHP-8.0'

* PHP-8.0:
Fix locale switch back to C in pcre

Merge branch 'PHP-7.4' into PHP-8.0

* PHP-7.4:
Fix locale switch back to C in pcre

Fix locale switch back to C in pcre

The compile context is shared between patterns, so we need to set
the character tables unconditionally in case we switched from
a non-C locale to

Fix locale switch back to C in pcre

The compile context is shared between patterns, so we need to set
the character tables unconditionally in case we switched from
a non-C locale to the C locale.

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Merge branch 'PHP-8.0'

* PHP-8.0:
Fix bug #80866

Merge branch 'PHP-7.4' into PHP-8.0

* PHP-7.4:
Fix bug #80866