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Benefits of using the conditional ?: (ternary) operator
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I would basically recommend using it only when the resulting statement is extremely short and represents a significant increase in conciseness over the if/else equivalent without sacrificing readability.
Good example:
int result = Check...
Apache: client denied by server configuration
...pache. You can see the enabling of the feature with the directive
Require all denied
This basically says to deny access to all users. To fix this problem, either remove the denied directive (or much better) add the following directive to the directories you want to grant access to:
Require all g...
WordPress is giving me 404 page not found for all pages except the homepage
All of a sudden I go to my WordPress website and all the pages give me a 404 page not found page. I'm assuming the problem lies with the permalink structure, which I could swear I did not touch. The permalink setting is on "month and name."
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What is the _snowman param in Ruby on Rails 3 forms for?
...net Explorer (5, 6, 7 and 8) to encode its parameters as unicode.
Specifically, this bug can be triggered if the user switches the browser's encoding to Latin-1. To understand why a user would decide to do something seemingly so crazy, check out this google search. Once the user has put the web-sit...
How to get innerHTML of DOMNode?
What function do you use to get innerHTML of a given DOMNode in the PHP DOM implementation? Can someone give reliable solution?
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从异构软件开发者的角度看异构计算 - 操作系统(内核) - 清泛网 - 专注C/C++...
...我们应该如何开发异构的应用呢？接下来我们将讨论这个问题。
从GPU说起。其实在很早以前，人们已经意识到GPU的众核性能，开始大家只能使用图形处理接口来利用GPU的计算资源，后来CUDA[3]的推出，将基于CPU+GPU的异构计算逐...
How to get random value out of an array?
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Since PHP 7.1, array_rand() uses the Mersenne Twister generator: rand() aliased to mt_rand() and srand() aliased to mt_srand(). In practice it should now be good enough.
– Gras Double
Jun 29 '...
How to convert a string to lower case in Bash?
...ous ways:
POSIX standard
tr
$ echo "$a" | tr '[:upper:]' '[:lower:]'
hi all
AWK
$ echo "$a" | awk '{print tolower($0)}'
hi all
Non-POSIX
You may run into portability issues with the following examples:
Bash 4.0
$ echo "${a,,}"
hi all
sed
$ echo "$a" | sed -e 's/\(.*\)/\L\1/'
hi all
# t...
How to add new column to MYSQL table?
I am trying to add a new column to my MYSQL table using PHP. I am unsure how to alter my table so that the new column is created. In my assessment table I have:
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LINUX下用PHPIZE安装PHP GD扩展 - 更多技术 - 清泛网 - 专注C/C++及内核技术
LINUX下用PHPIZE安装PHP GD扩展环境：LNMP in centOS 6.4。linux下PHP的扩展可以用phpize的方法，比较简单地进行启用。以下以PHP-GD2 库安装为例子。sudoyuminstallph...环境：LNMP in centOS 6.4。
linux下PHP的扩展可以用phpize的方法，比较简单地进行...