* PHP-5.4.40:
Additional fix for bug #69324
More fixes for bug #69152
Fixed bug #69353 (Missing null byte checks for paths in various PHP extensions)
Fixed bug #69324 (Buffer Over-read in unserialize when parsing Phar)
Fixed bug #69316 (Use-after-free in php_curl related to CURLOPT_FILE/_INFILE/_WRITEHEADER)
Fix bug #68486 and bug #69218 (segfault in apache2handler with apache 2.4)
Fix bug #68819 (Fileinfo on specific file causes spurious OOM and/or segfault)
Fixed bug #68901 (use after free)
Fixed bug #68740 (NULL Pointer Dereference)
Fix bug #66550 (SQLite prepared statement use-after-free)
Better fix for #68601 for perf 81e9a993f2
Fix bug #68601 buffer read overflow in gd_gif_in.c
Revert "Merge branch 'PHP-5.4' of https://git.php.net/repository/php-src into PHP-5.4"
Fixed bug #69293
Add ZEND_ARG_CALLABLE_INFO to allow internal function to type hint against callable.
* Removed ini options, safe_mode*
* Removed --enable-safe-mode --with-exec-dir configure options on Unix
* Updated extensions, SAPI's and core
* php_get_current_user() is now declared in main.c, thrus no need to include safe_mode.h anymore
[DOC] proto void header_remove([string header_name])
Removes an HTTP header previously set using header()
The header_name parameter is optionnal, all headers are
removed if it is not set
[SAPIs] The header_handler callback in sapi_module_struct has
been changed, it now take a new argument.
When it is set to SAPI_HEADER_DELETE, sapi_header->header is
the name of an header, header_handler has to delete it.
When it is set to SAPI_HEADER_DELETE_ALL, header_handler has
to delete all headers.
When sapi_header_op_enum is SAPI_HEADER_ADD or _REPLACE,
sapi_header->header is in the form "Name: value", header_handler
has to add or replace the given header.
In all cases, header_handler must not free sapi_header or
sapi_header->header. SAPI_HEADER_ADD must be returned if the
header has been added or replaced, or 0 in other cases.
