Fix #77821: Potential heap corruption in TSendMail()

`zend_string_tolower()` returns a copy (not a duplicate) of the given
string, if it is already in lower case. In this case we must n

Fix #77821: Potential heap corruption in TSendMail()

`zend_string_tolower()` returns a copy (not a duplicate) of the given
string, if it is already in lower case. In this case we must not not
`zend_string_free()` both strings. The cleanest solution is to call
` zend_string_release()` on both strings, which properly handles the
refcount.

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Remove local variables

This patch removes the so called local variables defined per
file basis for certain editors to properly show tab width, and
similar settings. These are mainly

Remove local variables

This patch removes the so called local variables defined per
file basis for certain editors to properly show tab width, and
similar settings. These are mainly used by Vim and Emacs editors
yet with recent changes the once working definitions don't work
anymore in Vim without custom plugins or additional configuration.
Neither are these settings synced across the PHP code base.

A simpler and better approach is EditorConfig and fixing code
using some code style fixing tools in the future instead.

This patch also removes the so called modelines for Vim. Modelines
allow Vim editor specifically to set some editor configuration such as
syntax highlighting, indentation style and tab width to be set in the
first line or the last 5 lines per file basis. Since the php test
files have syntax highlighting already set in most editors properly and
EditorConfig takes care of the indentation settings, this patch removes
these as well for the Vim 6.0 and newer versions.

With the removal of local variables for certain editors such as
Emacs and Vim, the footer is also probably not needed anymore when
creating extensions using ext_skel.php script.

Additionally, Vim modelines for setting php syntax and some editor
settings has been removed from some *.phpt files. All these are
mostly not relevant for phpt files neither work properly in the
middle of the file.

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Fix some misspellings

Remove unused Git attributes ident

The $Id$ keywords were used in Subversion where they can be substituted
with filename, last revision number change, last changed date, and last
use

Remove unused Git attributes ident

The $Id$ keywords were used in Subversion where they can be substituted
with filename, last revision number change, last changed date, and last
user who changed it.

In Git this functionality is different and can be done with Git attribute
ident. These need to be defined manually for each file in the
.gitattributes file and are afterwards replaced with 40-character
hexadecimal blob object name which is based only on the particular file
contents.

This patch simplifies handling of $Id$ keywords by removing them since
they are not used anymore.

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Remove conflicting declaration

Use zend_string_release_ex() instread of zend_string_release() in places, where we sure about string persistence.

Fix some misspellings

PCRE is always available, PHP can't be built without it anyway so these checks makes no sense anymore

Patch core for PCRE2 support

RFC https://wiki.php.net/rfc/pcre2-migration

Merge branch 'PHP-7.1' into PHP-7.2

* PHP-7.1:
minor loop optimizations, closes #2633

minor loop optimizations, closes #2633

preg_replace() optimization

Merge branch 'PHP-7.1'

* PHP-7.1:
Fixed bug #74510 win32/sendmail.c anchors CC header but not BCC

Fixed bug #74510 win32/sendmail.c anchors CC header but not BCC

Drop unnecessary allocator return value checks

Merge branch 'PHP-7.1'

* PHP-7.1:
fix possible NULL dereference

fix possible NULL dereference

Merge branch 'PHP-7.1'

* PHP-7.1:
remove unused var
use zend_string API
Fixed bug #74005 mail.add_x_header causes RFC-breaking lone line feed

remove unused var

use zend_string API

Fixed bug #74005 mail.add_x_header causes RFC-breaking lone line feed

Merge branch 'PHP-7.1'

* PHP-7.1:
add a primitive debug facility to sendmail

add a primitive debug facility to sendmail

Remove Netware support

If this does not break the Unix system somehow, I'll be amazed. This should get most of it out, apologies for any errors this may cause on non-Windows ends which I can

Remove Netware support

If this does not break the Unix system somehow, I'll be amazed. This should get most of it out, apologies for any errors this may cause on non-Windows ends which I cannot test atm.

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Fix bug #70145 From field incorrectly parsed from headers