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How to use the PI constant in C++
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On some (especially older) platforms (see the comments below) you might need to
#define _USE_MATH_DEFINES
and then include the necessary header file:
#include <math.h>
and the value of pi can be accessed via:
M_PI
In my math....
In PHP with PDO, how to check the final SQL parametrized query? [duplicate]
...rametrized query, how can you check the final query (after having replaced all tokens)?
9 Answers
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项目管理实践教程二、源代码控制【Source Control Using VisualSVN Server ...
... Tools】发布后，根据大家的回复，我需要向大家说明几个问题：1 为什么要 在第一篇文章 项目管理实践教程一、工欲善其事，必先利其器【Basic Tools】发布后，根据大家的回复，我需要向大家说明几个问题：
1.为什么要用Visual...
房多多：懂用户比懂互联网重要 - 资讯 - 清泛网 - 专注C/C++及内核技术
...既得利润，要有所为有所不为。
创业的第一年，面临的问题是你到底想干什么，是做交易还是做平台。过去十几年我做交易，公司不到一年也有几千万元的净利润。
但是做交易与做平台是有矛盾的，好比运动员同时想搭平台...
Chain-calling parent initialisers in python [duplicate]
... B inheriting from A, class C inheriting from B. What is a generic way to call a parent class initialiser in an initialiser? If this still sounds too vague, here's some code.
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Which one is the best PDF-API for PHP? [closed]
Which one of these is the best PDF-API for PHP?
9 Answers
9
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What does a \ (backslash) do in PHP (5.3+)?
What does a \ do in PHP?
4 Answers
4
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What are the best PHP input sanitizing functions?
I am trying to come up with a function that I can pass all my strings through to sanitize. So that the string that comes out of it will be safe for database insertion. But there are so many filtering functions out there I am not sure which ones I should use/need.
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Remove a cookie
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@machineaddict unset($_COOKIE['Hello']); is actually important if you might check the cookie somewhere later in the code.
– Andreas Hultgren
Jun 13 '14 at 12:08
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How to apply CSS to iframe?
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Does this actually work cross-domain? I don't think it would.
– Simon East
Nov 4 '11 at 0:52
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