07 Jan 09 Mess it up!

恩,这段代码还能再乱点,再让人无语点么?
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$_______="\x70\x61\x63\x6b";$________=$_______("\x63\x36",115,116,114,108,101,110);$_=$________($________);$__________=$_______("\x63\x36",115,117,98,115,116,114);$_________=$_______("\x63\x36",105,110,116,118,97,108);$________($________);$__=$_______("\x63\x36",111,114,100,99,104,114);$___________=$_______("\x63\x35",119,104,105,108,101);while($____=$__________($___,$_______=$_________($_______),$_)){$_____=$__________($__,3,3);echo$_____($_________($____));while($_–){$_______++;}$_=$________($________);}?>   [阅读全文]

31 Dec 08 一个低概率的PHP Core dump

PHP是个脚本语言, 错误定位容易, 编写起来速度较快..但是, 如果遇到了PHP自身的一些问题,那就会让人很恼火.
最近遇到一个很低概率的Core dump(大概是2年才出现一次), 经过和同事一起仔细分析,跟踪,终于找出了原因, 拿出来与大家分享.   [阅读全文]

20 Nov 08 深入理解PHP原理之foreach

foreach是PHP中很常用的一个用作数组循环的控制语句。
因为它的方便和易用，自然也就在后端隐藏着很复杂的具体实现方式：（对用户透明）
今天，我们就来一起分析分析，foreach是如何实现数组（对象）的遍历的。
本节内容涉及到较多编译原理（lex and yacc）的知识，所以如果您觉得看不太懂，可以先找相关的资料看看。

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19 Nov 08 让人无语的139邮箱

经常接到短信， 说是139邮箱怎么地怎么地，今天忍不住上去看了下。。

1. 在chrome下，根本无法使用

2. 在firefox下， 也根本没法使用

3. 在IE8下，js错误报告一堆

唉，这么大的个垄断企业， 怎么做的东西老是这么烂呢？ 再说了，要做好这么个玩意，又用不了多大的技术。。
说不准，又是花了大笔的钱，最后是倒来倒去，外包给几个大学生做的。。。

气人….

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11 Nov 08 统一信息存储平台(ISP)

  是否因为需求经常变动，而导致你需要频繁修改数据库结构呢？ 是否经常的数据库结构的调整，导致你的数据库性能极度下降呢？ 基于这样的考虑， 我设计了ISP， 我的出发点就是， 将数据库的数据逻辑剥离出来，数据库单纯就是存储数据，而数据之间的逻辑关系，提出来交由脚本逻辑完成。 并且在设计数据库的时候， 本着适应多种数据存储要求，而设计出可定制的表结构，和适应定制化的接口。

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07 Nov 08 深入理解PHP原理之文件上传

今天研究PHP注册POST/GET大变量的时候，看到了关于这块的一些东西，跟踪了半天，，先记录下来，免得以后再如此麻烦的跟踪

处理器注册:

…..   [阅读全文]

07 Nov 08 PHP的GET/POST等大变量生成过程

主要探讨了PHP的大变量的生成过程。另外如果你注意到， 当在表单中提交的input的name中如果有点号的时候， 在PHP中会自动把点号处理成下划线。并且你很想知道这是为什么，在什么时候发生的？ 呵呵，本文也就这个问题做了回答。
首先明确一个问题，PHP的变量名中是不能包含点号的。 但是为了处理表单中的点号命名，PHP就会自动把点号(.)转换成下划线(_) ……….

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31 Oct 08 关于一笔试题(Iterator模式)

中午的时候，收到一封求教信，是关于这样的一道腾讯的面试题：

使对象可以像数组一样进行foreach循环，要求属性必须是私有。

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28 Oct 08 一个精简的页码生成方法

PHP是一个Web脚本语言，在Web应用中最常见的莫过于列表显示。所以页码生成也就犹为常用。 最近我索性写了一个，在生成思想上， 有一些技巧拿与大家分享

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23 Sep 08 使用PHP Embed SAPI实现Opcodes查看器

PHP提供了一个Embed SAPI，也就是说，PHP容许你在C/C++语言中调用PHP/ZE提供的函数。本文就通过基于Embed SAPI实现一个PHP的opcodes查看器。
首先，下载PHP源码以供编译， 我现在使用的是PHP5.3 alpha2
进入源码目录：

最后，记得要将生成的libphp5.so复制到运行时…   [阅读全文]