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What does PHP keyword 'var' do?
...tants states that var must not be used, and visibility must be declared on all properties.
– Charles Wood
Nov 11 '19 at 14:23
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Reference: Comparing PHP's print and echo
...hat while they appear to users as two distinct constructs, they are both really shades of echo if you get down to basics, i.e. look at the internal source code. That source code involves the parser as well as opcode handlers. Consider a simple action such as displaying the number zero. Whether you ...
C语言结构体里的成员数组和指针 - C/C++ - 清泛网 - 专注C/C++及内核技术
...问0x4的内存地址，不crash才怪。于是，你一定会有如下的问题：
1）为什么不是 13行if语句出错？f.a被初始化为空了嘛，用空指针访问成员变量为什么不crash？
2）为什么会访问到了0x4的地址？靠，4是怎么出来的？
3）代码中的...
How to check whether mod_rewrite is enable on server?
...nfiguration file, make sure the virtual host in question has the directive AllowOverride All somewhere like this:
<VirtualHost *:80>
...
<Directory "directory/of/your/.htaccess">
AllowOverride All
</Directory>
</VirtualHost>
Basically, this states to ...
Are unused CSS images downloaded?
... "unused" and thusly, any images won't be downloaded.
Chrome 26 (possibly all of them, not sure), does download CSS images if they are applied to the <noscript> element, even when JS is enabled. (It isn't immediately clear to me why though, perhaps this is a bug?).
It does not download CSS i...
Pros and Cons of Interface constants [closed]
PHP interfaces allow the definition of constants in an interface, e.g.
2 Answers
2
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Use cases for NoSQL [closed]
NoSQL has been getting a lot of attention in our industry recently. I'm really interested in what peoples thoughts are on the best use-cases for its use over relational database storage. What should trigger a developer into thinking that particular datasets are more suited to a NoSQL solution. I'm p...
Best Practices for Laravel 4 Helpers and Basic Functions?
...lean way: Create a library. That way it'll be autoloaded ONLY when you actually use it.
Create a libraries folder inside your app folder
Create your library file, create a class in it, and add static functions to it
Option 1: Edit start/global.php to add app_path().'/libraries' to the ClassLoader:...
What is thread safe or non-thread safe in PHP?
...s implement different techniques for handling incoming HTTP requests in parallel. A pretty popular technique is using threads -- that is, the web server will create/dedicate a single thread for each incoming request. The Apache HTTP web server supports multiple models for handling requests, one of w...
Set port for php artisan.php serve
... end up with this for Linux:
sudo php artisan serve --port=80
This will allow you to test on localhost without specifying the port in your browser. You can also use this to set up a temporary demo, as I have done.
Keep in mind, however, that PHP's built in server is not designed for production. ...