我一直都觉得如果学习PHP，最好的范例就是discuz和wordpress，无论是架构还是语法规范，都有其可取之处。

从这里看到一个不错的项目正在孕育中——BackPress，是WordPress、BBPress程序的核心部分。

官方对这个项目的介绍为：“Core PHP libraries for your web applications.”但我觉得这个更像是一个开发框架，功能列表如下：

• Logging (via bbPress’ logging library) to file/database/other. Supports levels (notice, warn, fatal).
• User Roles management (generally used for access control to portions of your application).
• Schema parser (for comparing schema files to current/live databases).
• User management (including user meta data and DB schema to support it) for managing core user information and arbitrary other user-related data.
• Database Abstraction (including using multiple database servers, clusters and data centers)
• XML-RPC Server and Client operations for interfacing with other systems.
• Mail sending (via SMTP and sendmail, supports attachments)
• Password Hashing/Crypto
• AJAX Responses (standardized XML-based response mechanism for AJAX requests)
• User Authentication using built in crypto for passwords, plus secure cookie management out of the box
• JavaScript and CSS inclusion and dependencies management, including internationalization options for JS strings
• Error handling via objects which can report multiple errors at a time
• Full HTTP library (supporting core PHP HTTP operations, cURL and raw sockets for widest compatibility available. Includes cookie send/receive support)
• Object caching, including using memcached as a backend for semi-persistent storage
• Arbitrary taxonomy management (tagging, categories, other classification systems) with generic DB schema
• Generic options management for handling application-wide options/settings
• Compatibility functions to provide support for useful functionality which is not available in all versions of PHP
• A variety of core helpers for advanced string manipulation, simpler HTTP transactions, security (nonces etc), timezones and more
• Lots of formatting functions for handling strings of all kinds (HTML, typographic features, sanitization, etc)
• KSES: Full security filtering for HTML content
• Complete plugin API, provided via the ability to add “actions” and “filters” to your application and allow any plugin to hook into those places to modify output/perform actions.
• Shortcode API allowing for [bbcode]-style input from a user to be translated using arbitrary rules
• Pseudo-cron functionality, allowing you to fire off events within your application, triggered by visits/page-loads to approximate cron-type functionality

看看，用这些功能库能减少PHP WEB应用中不少的重复工作量（这些重复的工作量也是导致我无心继续开发自己的CMS和项目管理软件的主要原因）。

尽管目前该项目还没有正式版，但的确是一个值得期待的项目，不是吗？