在7月24日PHP100曾报道过 PHP终止PHP5.2 更新 力推PHP5.3的官方新闻，以下为引用内容，并更新附上,PHP官方列出的PHP5.3 向下不兼容的一些函数,也希望朋友们在使用的新的PHP版本的时候，不要因为某些不兼容的函数而纠结太久时间。PHP100也会在后期相继发布PHP5.3中文手册.

　　昨日，在php官网上php5.2.x系列稳定版更新到php5.2.14，PHP5.3.x系列更新到PHP5.3.3。同时这个版本主要改进了PHP5.2.x系列的稳定性，修复60多个BUG，部分BUG与安全相关。这个版本标志着对PHP5.2系列更新的结束，在此版本之后不再积极更新PHP5.2x，其安全补丁可能以单个形式发布。

　　PHP官网着重列出一个PHP5.3.3新的不兼容特性：在命名空间里，和类名一致的函数不再被作为一个构造函数。不过没有使用namespace的类不受影响。

　　与此同时，PHP开发团队发布了PHP5.3.3，修复了近100个BUG，鼓励所有PHP5.2系列的用户升级到PHP5.3。 但是实际上国内很多PHP程序对PHP5.3的支持都有不少小问题。

　　以下是PHP5.3.3的修复清单。 Rewrote var_export() to use smart_str rather than output buffering, prevents data disclosure if a fatal error occurs (CVE-2010-2531).

　　Fixed a possible resource destruction issues in shm_put_var().

　　Fixed a possible information leak because of interruption of XOR operator.

　　Fixed a possible memory corruption because of unexpected call-time pass by refernce and following memory clobbering through callbacks.

　　Fixed a possible memory corruption in ArrayObject::uasort().

　　Fixed a possible memory corruption in parse_str().

　　Fixed a possible memory corruption in pack().

　　Fixed a possible memory corruption in substr_replace().

　　Fixed a possible memory corruption in addcslashes().

　　Fixed a possible stack exhaustion inside fnmatch().

　　Fixed a possible dechunking filter buffer overflow.

　　Fixed a possible arbitrary memory access inside sqlite extension.

　　Fixed string format validation inside phar extension.

　　Fixed handling of session variable serialization on certain prefix characters.

　　Fixed a NULL pointer dereference when processing invalid XML-RPC requests (Fixes CVE-2010-0397, bug #51288).

　　Fixed SplObjectStorage unserialization problems (CVE-2010-2225).

　　Fixed possible buffer overflows in mysqlnd_list_fields, mysqlnd_change_user.

　　Fixed possible buffer overflows when handling error packets in mysqlnd.

　　Key enhancements in PHP 5.3.3 include:

　　Upgraded bundled sqlite to version 3.6.23.1.

　　Upgraded bundled PCRE to version 8.02.

　　Added FastCGI Process Manager (FPM) SAPI.

　　Added stream filter support to mcrypt extension.

　　Added full_special_chars filter to ext/filter.

　　Fixed a possible crash because of recursive GC invocation.

　　Fixed bug #52238 (Crash when an Exception occured in iterator_to_array).

　　Fixed bug #52041 (Memory leak when writing on uninitialized variable returned from function).

　　Fixed bug #52060 (Memory leak when passing a closure to method_exists()).

　　Fixed bug #52001 (Memory allocation problems after using variable variables).

　　Fixed bug #51723 (Content-length header is limited to 32bit integer with Apache2 on Windows).

　　Fixed bug #48930 (__COMPILER_HALT_OFFSET__ incorrect in PHP >= 5.3).

　　For users upgrading from PHP 5.2 there is a migration guide available on http://http://www.zjjv.com///migration53, detailing the changes between those releases and PHP 5.3.

　　PHP5.2.14主要更新清单

　　Rewrote var_export() to use smart_str rather than output buffering, prevents data disclosure if a fatal error occurs.

　　Fixed a possible interruption array leak in strrchr().(CVE-2010-2484)

　　Fixed a possible interruption array leak in strchr(), strstr(), substr(), chunk_split(), strtok(), addcslashes(), str_repeat(), trim().

　　Fixed a possible memory corruption in substr_replace().

　　Fixed SplObjectStorage unserialization problems (CVE-2010-2225).

　　Fixed a possible stack exaustion inside fnmatch().

　　Fixed a NULL pointer dereference when processing invalid XML-RPC requests (Fixes CVE-2010-0397, bug #51288).

　　Fixed handling of session variable serialization on certain prefix characters.

　　Fixed a possible arbitrary memory access inside sqlite extension. Reported by Mateusz Kocielski.

　　Key enhancements in PHP 5.2.14 include:

　　Upgraded bundled PCRE to version 8.02.

　　Updated timezone database to version 2010.5.

　　Fixed bug #52238 (Crash when an Exception occured in iterator_to_array).

　　Fixed bug #52237 (Crash when passing the reference of the property of a non-object).

　　Fixed bug #52041 (Memory leak when writing on uninitialized variable returned from function).

　　Fixed bug #51822 (Segfault with strange __destruct() for static class variables).

　　Fixed bug #51552 (debug_backtrace() causes segmentation fault and/or memory issues).

　　Fixed bug #49267 (Linking fails for iconv on MacOS: "Undefined symbols: _libiconv").

　　下面列出的是PHP5.3已经不支持的相关函数:

　　ereg();//直接用mb_ereg代替，或是preg_match代替，但是匹配规则需要用/包括起来

　　eregi();//preg_match代替，在规则后加上i，如：preg_match(“/^(style|style_)(.*)*/i”, $file);

　　ereg_replace();

　　set_magic_quotes_runtime();

　　split();

　　mysql_close(); // 将不支持全部关闭, 需要改为:mysql_close($link);