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Possibility of duplicate Mongo ObjectId's being generated in two different collections?
...que ID (please let me know if there are more):
Before this discussion, recall that the BSON Object ID consists of:
[4 bytes seconds since epoch, 3 bytes machine hash, 2 bytes process ID, 3 bytes counter]
Here are the three possibilities, so you judge for yourself how likely it is to get a dupe:
...
Doctrine - How to print out the real sql, not just the prepared statement?
...trine is not sending a "real SQL query" to the database server : it is actually using prepared statements, which means :
Sending the statement, for it to be prepared (this is what is returned by $query->getSql())
And, then, sending the parameters (returned by $query->getParameters())
and exe...
Facebook share button and custom text [closed]
...]:
<a title="send to Facebook"
href="http://www.facebook.com/sharer.php?s=100&p[title]=YOUR_TITLE&p[summary]=YOUR_SUMMARY&p[url]=YOUR_URL&p[images][0]=YOUR_IMAGE_TO_SHARE_OBJECT"
target="_blank">
<span>
<img width="14" height="14" src="'icons/fb.gif" alt="F...
浅谈TCP优化 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...的处理能力，那么接收方会出现丢包。为了避免出现此类问题，流量控制要求数据传输双方在每次交互时声明各自的接收窗口「rwnd」大小，用来表示自己最大能保存多少数据，这主要是针对接收方而言的，通俗点儿说就是让发...
Get value from SimpleXMLElement Object
... i can't believe this is so complicated. why would they make a class called "getName" but not "getValue"? why would they print empty string if you printed it instead of converted it manually to (string). WHY??
– user151496
Oct 17 '16 at 12:31
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wxbit平台第三方扩展报错分析：no such class 运行时错误的根本原因 - AI ...
...建服务器的 Extension 处理机制
这是 wxbit 平台的结构性问题，从三个层面解释：
1. MIT 原版的 Extension 加载流程
在 MIT 官方版（以及 fun123.cn 同步的版本）中：
- 构建服务器（BuildServer）收到 .aia 后，会解析其中的 extension .ai...
How to generate .json file with PHP?
json.php code
8 Answers
8
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Get Image Height and Width as integer values?
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@poke: are you really 100% sure?
– Sarfraz
Feb 18 '10 at 5:04
5
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How to decode Unicode escape sequences like “\u00ed” to proper UTF-8 encoded characters?
...PHP that can decode Unicode escape sequences like " \u00ed " to " í " and all other similar occurrences?
7 Answers
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一个故事告诉你比特币的原理及运作机制 - 创意 - 清泛网 - 专注C/C++及内核技术
...事的方式，逐步告诉大家比特币提出的动机、解决了什么问题以及一些关键组件的目标和设计方案。
问题的提出
我们先从比特币产生的动机开始。
以物易物的比特村
话说在这个世界上，有一个叫比特村的小村庄，村庄共有...