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What is the maximum possible length of a .NET string?
...st you could do is 1,073,741,823, but you're not likely to ever be able to allocate that on a 32-bit machine.
This is one of those situations where "If you have to ask, you're probably doing something wrong."
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What is the coolest thing you can do in
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PHP - the Sierpinski gasket a.k.a the Triforce
OK, it's 15 lines of code but the result is awesome! That's the kind of stuff that made me freak out when I was a child. This is from the PHP manual:
$x = 200;
$y = 200;
$gd = i...
Creating an instance of class
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Allocates some dynamic memory from the free store, and creates an object in that memory using its default constructor. You never delete it, so the memory is leaked.
Does exactly the same as 1; in the case of user-defined type...
Using a .php file to generate a MySQL dump
...c(), I would choose the second one, which doesn't return the output to the PHP script -- no need for the PHP script to get the whole SQL dump as a string : you only need it written to a file, and this can be done by the command itself.
That external command will :
be a call to mysqldump, with th...
Installing PDO driver on MySQL Linux server
...ble to install the necessary PDO parts from apt using sudo apt-get install php5-mysql
There is no limitation between using PDO and mysql_ simultaneously. You will however need to create two connections to your DB, one with mysql_ and one using PDO.
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How to check what user php is running as?
I need to detect if php is running as nobody. How do I do this?
16 Answers
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CentOS+Nginx+PHP+MySQL详细配置(图解) - 更多技术 - 清泛网 - 专注C/C++及内核技术
CentOS+Nginx+PHP+MySQL详细配置(图解)一、安装MySQL 目前web服务器已经很少有跑静态页面的，如果要跑动态网站那当然就离不开数据库，虽然在以前文章中有写MySQL是怎么安装的...一、安装MySQL
目前web服务器已经很少有跑静态页...
CentOS+Nginx+PHP+MySQL详细配置(图解) - PHP - 清泛IT论坛，有思想、有深度
...页请求，也就是html.如果是来自动态的网页请求，比如*.php，那么Nginx就要根据正则表达式查询路径，然后把*.PHP交给PHP去处理
#rpm -qa | grep pcre //查询系统中有没有安装PCRE，一般装...
Using curl POST with variables defined in bash script functions
...g eval or backtick substitution:
postDataJson="{\"guid\":\"$guid\",\"auth_token\":\"$token\"}"
Using sed to strip quotes from beginning and end of response
$(curl --silent -H "Content-Type: application/json" https://${target_host}/runs/get-work -d ${postDataJson} | sed -e 's/^"//' -e 's/"$//')
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When should you not use virtual destructors?
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Virtual functions mean every allocated object increases in memory cost by a virtual function table pointer.
So if your program involves allocating a very large number of some object, it would be worth avoiding all virtual functions in order to save the ...