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How to initialize static variables
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I love PHP, but it's really odd sometimes.
– Marco Demaio
Nov 10 '11 at 21:46
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大数据：用数据指导APP运营 - 资讯 - 清泛网 - 专注C/C++及内核技术
大数据：用数据指导APP运营数据问题一直是很多运营人员头疼的问题。之前的回答说了一些，但都没有展开说，我也不知道进阶篇能说到啥程度，但先说着吧。1 数据的定义...数据问题一直是很多运营人员头疼的问题。之前的回...
Does JavaScript have a method like “range()” to generate a range within the supplied bounds?
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@rodfersou FYI: your example is wrong. stop is not actually the stop / end position but count / distance. (no offense, just to make people aware of the typo)
– F Lekschas
Jul 26 '18 at 2:45
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“Keep Me Logged In” - the best approach
...e algorithm that you used. For example:
md5(salt+username+ip+salt)
Now, all an attacker needs to do is brute force the "salt" (which isn't really a salt, but more on that later), and he can now generate all the fake tokens he wants with any username for his IP address! But brute-forcing a salt is...
Symfony 2 EntityManager injection in service
...to inject doctrine EntityManager, but I don't see that __construct() is called on my service, and injection doesn't work.
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Linux的诞生和发展 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...的时候已经想到要实现与POSIX（UNIX 的国际标准）的兼容问题了。
Linux 操作系统的诞生
1981 年IBM 公司推出享誉全球的微型计算机IBM PC。在1981-1991 年间，MS-DOS 操作系统一直是微型计算机上操作系统的主宰。此时计算机...
Difference between and
...s will not submit a form - they don't do anything by default. They're generally used in conjunction with JavaScript as part of an AJAX application.
<input type="submit"> buttons will submit the form they are in when the user clicks on them, unless you specify otherwise with JavaScript.
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无社交不商业，Uber将边缘化BAT - 资讯 - 清泛网 - 专注C/C++及内核技术
...司，居然打败了如此强大的出租车公司。
这说明了一个问题：就是连接比拥有更加重要。
连接是一种关系，而你拥有的只是物质，也就是说，现在的世界，关系比物质更重要。
讲到这里，我们还没有真正了解互联网...
In php, is 0 treated as empty?
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http://php.net/empty
The following things are considered to be empty:
"" (an empty string)
0 (0 as an integer)
0.0 (0 as a float)
"0" (0 as a string)
NULL
FALSE
array() (an empty array)
var $var; (a variabl...
Authoritative position of duplicate HTTP GET query keys
...t you like.
Typical approaches include: first-given, last-given, array-of-all, string-join-with-comma-of-all.
Suppose the raw request is:
GET /blog/posts?tag=ruby&tag=rails HTTP/1.1
Host: example.com
Then there are various options for what request.query['tag'] should yield, depending on the...