PHP 5.6.21正式发布下载，改进日志如下：
28 Apr 2016, PHP 5.6.21
- Core:
. Fixed bug #69537 (__debugInfo with empty string for key gives error).
(krakjoe)
. Fixed bug #71841 (EG(error_zval) is not handled well). (Laruence)
- BCmath:
. Fixed bug #72093 (bcpowmod accepts negative scale and corrupts
_one_ definition). (Stas)
- Curl:
. Fixed bug #71831 (CURLOPT_NOPROXY applied as long instead of string).
(Michael Sierks)
- Date:
. Fixed bug #71889 (DateInterval::format Segmentation fault). (Thomas Punt)
- EXIF:
. Fixed bug #72094 (Out of bounds heap read access in exif header processing). (Stas)
- GD:
. Fixed bug #71952 (Corruption inside imageaffinematrixget). (Stas)
. Fixed bug #71912 (libgd: signedness vulnerability). (Stas)
- Intl:
. Fixed bug #72061 (Out-of-bounds reads in zif_grapheme_stripos with negative
offset). (Stas)
- OCI8:
. Fixed bug #71422 (Fix ORA-01438: value larger than specified precision
allowed for this column). (Chris Jones)
- ODBC:
. Fixed bug #63171 (Script hangs after max_execution_time). (Remi)
- Opcache:
. Fixed bug #71843 (null ptr deref ZEND_RETURN_SPEC_CONST_HANDLER).
(Laruence)
- PDO:
. Fixed bug #52098 (Own PDOStatement implementation ignore __call()).
(Daniel Kalaspuffar, Julien)
. Fixed bug #71447 (Quotes inside comments not properly handled). (Matteo)
- Postgres:
. Fixed bug #71820 (pg_fetch_object binds parameters before call
constructor). (Anatol)
- SPL:
. Fixed bug #67582 (Cloned SplObjectStorage with overwritten getHash fails
offsetExists()). (Nikita)
- Standard:
. Fixed bug #71840 (Unserialize accepts wrongly data). (Ryat, Laruence)
. Fixed bug #67512 (php_crypt() crashes if crypt_r() does not exist or
_REENTRANT is not defined). (Nikita)
- XML:
. Fixed bug #72099 (xml_parse_into_struct segmentation fault). (Stas)
下载地址：
- Source code (zip)
- Source code (tar.gz)
深入理解PHP中的ini配置 http://www.linuxidc.com/Linux/2016-02/128442.htm
剖析PHP脚本的超时机制 http://www.linuxidc.com/Linux/2016-02/128441.htm
Ubuntu 14.04下搭建PHP开发环境PDF http://www.linuxidc.com/Linux/2016-02/128330.htm
PHP 7革新与性能优化 http://www.linuxidc.com/Linux/2015-09/123136.htm
PHP 7 ，你值得拥有 http://www.linuxidc.com/Linux/2015-06/118847.htm
在 CentOS 7.x / Fedora 21 上面体验 PHP 7.0 http://www.linuxidc.com/Linux/2015-05/117960.htm
CentOS 6.3 安装LNMP (PHP 5.4,MyySQL5.6) http://www.linuxidc.com/Linux/2013-04/82069.htm
在部署LNMP的时候遇到Nginx启动失败的2个问题 http://www.linuxidc.com/Linux/2013-03/81120.htm
Ubuntu安装Nginx php5-fpm MySQL(LNMP环境搭建) http://www.linuxidc.com/Linux/2012-10/72458.htm
《细说PHP》高清扫描PDF+光盘源码+全套教学视频 http://www.linuxidc.com/Linux/2014-03/97536.htm
CentOS 6中配置PHP的LNMP的开发环境 http://www.linuxidc.com/Linux/2013-12/93869.htm
