PHP 7.2.0 RC5 发布了。PHP（PHP：Hypertext
Preprocessor）是一种在电脑上执行的脚本语言，主要是用途在于处理动态网页，也包含了命令列执行接口（command line
interface），或者产生图形使用者接口（GUI）程式。改进日志如下： 26 Oct 2017, PHP 7.2.0RC5
- Core:
. Fixed bug #75368 (mmap/munmap trashing on unlucky allocations). (Nikita,
Dmitry)
- CLI:
. Fixed bug #75287 (Builtin webserver crash after chdir in a shutdown
function). (Laruence)
- Date:
. Fixed bug #75055 (Out-Of-Bounds Read in timelib_meridian()). (Derick)
- Enchant:
. Fixed bug #53070 (enchant_broker_get_path crashes if no path is set). (jelle
van der Waa, cmb)
. Fixed bug #75365 (Enchant still reports version 1.1.0). (cmb)
- Exif:
. Fixed bug #75301 (Exif extension has built in revision version). (Peter
Kokot)
- Fileinfo:
. Upgrade bundled libmagic to 5.31. (Anatol)
- GD:
. Fixed bug #65148 (imagerotate may alter image dimensions). (cmb)
- Intl:
. Fixed bug #75378 ([REGRESSION] IntlDateFormatter::parse() does not change
$position argument). (Laruence)
. Fixed bug #75317 (UConverter::setDestinationEncoding changes source instead
of destination). (andrewnester)
- JSON:
. Fixed bug #68567 (JSON_PARTIAL_OUTPUT_ON_ERROR can result in JSON with null
key). (Jakub Zelenka)
- OCI8:
. Fixed valgrind issue. (Tianfang Yang)
- Opcache:
. Fixed bug (assertion fails with extended info generated). (Laruence)
. Fixed bug (Phi sources removel). (Laruence)
. Fixed bug #75370 (Webserver hangs on valid PHP text). (Laruence)
. Fixed bug #75357 (segfault loading WordPress wp-admin). (Laruence)
. Fixed bug #75373 (Warning Internal error: wrong size calculation). (Laruence, Dmitry)
- Openssl:
. Fixed bug #75363 (openssl_x509_parse leaks memory). (Bob)
- PCRE:
. Fixed bug #75207 (applied upstream patch for CVE-2016-1283). (Anatol)
- PGSQL:
. Fixed bug #75419 (Default link incorrectly cleared/linked by pg_close()). (Sara)
- Standard:
. Fixed bug #75221 (Argon2i always throws NUL at the end). (cmb)
- Zlib:
. Fixed bug #75299 (Wrong reflection on inflate_init and inflate_add). (Fabien
Villepinte)
下载地址： https://downloads.php.net/~pollita/ | 
