看了一下5.5的更新。。原来5.5开始就放弃windows 2003了。那些想在2003上跑应用的人，要哭了 http://www.php.net/manual/en/migration55.new-features.php windows xp and 2003 support dropped support for windows xp and 2003 has been dropped. windows
看了一下5.5的更新。。原来5.5开始就放弃windows 2003了。那些想在2003上跑应用的人，要哭了
http://www.php.net/manual/en/migration55.new-features.php
windows xp and 2003 support droppedsupport for windows xp and 2003 has been dropped. windows builds of php now require windows vista or newer.
添加了finally....
finally keyword addedtry-catch blocks now support a finally block for code that should be run regardless of whether an exception has been thrown or not.
foreach的时候，可以list了。不需要再$val[0]
foreach now supports list()the foreach control structure now supports unpacking nested arrays into separate variables via the list() construct. 
empty() supports arbitrary expressionspassing an arbitrary expression instead of a variable to empty() is now supported.
array and string literal dereferencingarray and string literals can now be dereferenced directly to access individual elements and characters:

还有一个：
new password hashing apia new password hashing api that makes it easier to securely hash and manage passwords using the same underlying library as crypt() in php has been added. see the documentation for password_hash() for more detail.
额。难道以后的wordpress也可以直接用这个了？
原文地址：php5不再支持2003, 感谢原作者分享。