查看完整版本: PHP 5.3 alpha1 released!发布!!!!!!!!~~~~~~~~~~~~

PHP 5.3 alpha1 released!发布!!!!!!!!~~~~~~~~~~~~

The PHP development team is proud to announce the [url=http://downloads.php.net/johannes/]first alpha release[/url] of the upcoming minor version update of PHP. [url=http://downloads.php.net/pierre/]Windows binaries[/url] will be available starting with alpha2 (intermediate snapshots available at [url=http://snaps.php.net/]snaps.php.net[/url]).The new version PHP 5.3 is expected to improve stability andperformance as well as add new language syntax and extensions. Severalnew features have already been documented in the [url=http://php.net/docs.php]official documentation[/url], others are listed on the [url=http://wiki.php.net/doc/scratchpad/upgrade/53]wiki[/url] in preparation of getting documented. Please also review the [url=http://php.net/php5news]NEWS[/url] file.
        [b]THIS IS A DEVELOPMENT PREVIEW - DO NOT USE IT IN PRODUCTION![/b]        The purpose of this alpha release is to encourage users to not only actively         participate in identifying bugs, but also in ensuring that all new features or         necessary backwards compatibility breaks are noted in the documentation. Please         report any findings to the [email=php-qa@lists.php.net]QA mailinglist[/email]         or the [url=http://bugs.php.net/]bug tracker[/url].
        There have been a great number of other additions and improvements, but here is a short overview of the most important changes:
        [list][*][url=http://php.net/language.namespaces]Namespaces[/url] (documentation maybe out dated)[*][url=http://php.net/oop5.late-static-bindings]Late static binding[/url] and [url=http://php.net/language.oop5.overloading]__callStatic[/url][*][url=http://wiki.php.net/rfc/closures]Lambda functions and closures[/url][*]Addition of the [url=http://php.net/book.intl]intl[/url], [url=http://php.net/book.phar]phar[/url] (phar is scheduled for some more work a head of alpha2), [url=http://php.net/book.fileinfo]fileinfo[/url] and [url=http://php.net/book.sqlite3]sqlite3[/url] extensions[*]Optional cyclic garbage collection[*]Optional support for the [url=http://forge.mysql.com/wiki/PHP_MYSQLND]MySQLnd[/url] replacement driver for libmysql[*]Windows older than Windows 2000 (Windows 98, NT4, etc.) are not supported anymore ([url=http://wiki.php.net/internals/windows/releasenotes]details[/url])[*]New syntax features like [url=http://php.net/language.types.string#language.types.string.syntax.nowdoc]NOWDOC[/url], limited GOTO, ternary short cut "?:"[/list]        Severalunder the hood changes also require in depth testing with existingapplications to ensure that any backwards compatibility breaks areminimized. This is especially important for users that require theundocumented Zend engine multibyte support.
        The current [url=http://wiki.php.net/todo/php53]release plan[/url]states that there will be alpha/beta/RC releases in 2-3 week intervalswith an expected stable release of PHP 5.3 between mid September andmid October of 2008.

一个变动比较大的版本
其中比较大的改动有：
添加了namespace
用mysqlnd替换了libmysql