PHP 发布了两个更新版本,分别是 5.5.32 和 5.6.18 。改进内容如下;
5.6.18:
- Core:
- Fixed bug #71039 (exec functions ignore length but look for NULL termination).
- Fixed bug #71089 (No check to duplicate zend_extension).
- Fixed bug #71201 (round() segfault on 64-bit builds).
- Added support for new HTTP 451 code.
- Fixed bug #71273 (A wrong ext directory setup in php.ini leads to crash).
- Fixed bug #71323 (Output of stream_get_meta_data can be falsified by its input).
- Fixed bug #71459 (Integer overflow in iptcembed()).
- Apache2handler:
- Fix >2G Content-Length headers in apache2handler.
- FTP:
- Implemented FR #55651 (Option to ignore the returned FTP PASV address).
- Opcache:
- Fixed bug #71127 (Define in auto_prepend_file is overwrite).
- Fixed bug #71024 (Unable to use PHP 7.0 x64 side-by-side with PHP 5.6 x32 on the same server).
- PCRE:
- Upgraded bundled PCRE library to 8.38.
- Phar:
- Fixed bug #71354 (Heap corruption in tar/zip/phar parser).
- Fixed bug #71391 (NULL Pointer Dereference in phar_tar_setupmetadata()).
- Fixed bug #71488 (Stack overflow when decompressing tar archives).
- Session:
- Fixed bug #69111 (Crash in SessionHandler::read()).
- SOAP:
- Fixed bug #70979 (crash with bad soap request).
- SPL:
- Fixed bug #71204 (segfault if clean spl_autoload_funcs while autoloading).
- WDDX:
- Fixed bug #71335 (Type Confusion in WDDX Packet Deserialization).
5.5.32:
- Core:
- Fixed bug #71039 (exec functions ignore length but look for NULL termination).
- Fixed bug #71323 (Output of stream_get_meta_data can be falsified by its input).
- Fixed bug #71459 (Integer overflow in iptcembed()).
- GD:
- Improved the fix for bug #70976.
- PCRE:
- Upgraded pcrelib to 8.38.
- Phar:
- Fixed bug #71354 (Heap corruption in tar/zip/phar parser).
- Fixed bug #71391 (NULL Pointer Dereference in phar_tar_setupmetadata()).
- Fixed bug #71488 (Stack overflow when decompressing tar archives).
- WDDX:
- Fixed bug #71335 (Type Confusion in WDDX Packet Deserialization).

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PHPperformancetuningiscrucialbecauseitenhancesspeedandefficiency,whicharevitalforwebapplications.1)CachingwithAPCureducesdatabaseloadandimprovesresponsetimes.2)Optimizingdatabasequeriesbyselectingnecessarycolumnsandusingindexingspeedsupdataretrieval.


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