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海量数据相似度计算之simhash短文本查找 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...升级、增加机器，但有些时候光是增加机器已经解决不了问题了，就算增加机器也不是短时间能够解决的，需要考虑分布式、客户预算、问题解决的容忍时间？头大时候要相信人类的智慧是无穷的，泡杯茶，听下轻音乐：）畅想...
How to host a Node.Js application in shared hosting [closed]
... can run node.js server on a typical shared hosting with Linux, Apache and PHP (LAMP). I have successfully installed it, even with NPM, Express and Grunt working fine. Follow the steps:
1) Create a new PHP file on the server with the following code and run it:
<?php
//Download and extract the l...
PHP & mySQL: Year 2038 Bug: What is it? How to solve it?
.... Instead of asking my question in bulk, I preferred to break it up into small parts so that it is easy for novice users to understand as well. So my question(s):
...
新手程序员应该知道的7件事 - 创意 - 清泛网 - 专注C/C++及内核技术
...的甚至是几十年）作为专业软件工程师的工作经验。我的问题是，如果他们现在回过头去，哪些技能和知识是他们第一次以写代码为生的时候就希望能够掌握的。无论你是一个刚毕业刚开始自己第一份开发工作的大学生，还是年...
Setting environment variables for accessing in PHP when using Apache
I have a Linux environment and I have a PHP Web Application that conditionally runs based on environment variables using getenv in PHP. I need to know how these environment variables need to be set for the application to work correctly. I am not sure how to set this up on Apache.
...
MySQL复制的概述、安装、故障、技巧、工具 - 数据库(内核) - 清泛网 - 专注...
...主机名作为名字，如此一来一旦主机名发生改变，就会出问题，所以推荐指定log_bin（从服务器的relay_log存在一样的问题）。
注：sync_binlog，innodb_flush_log_at_trx_commit，innodb_support_xa三个选项都是出于安全目的设置的，不是复制的...
How can I check if a URL exists via PHP?
...side.
Waiting for a response might take time and block code execution.
Not all headers returned by get_headers() are well formed.
Use curl (if you can).
Prevent fetching the entire body/content, but only request the headers.
Consider redirecting urls:
Do you want the first code returned?
Or follow a...
How can we match a^n b^n with Java regex?
...tion (?=…).
Here is our pattern with a simple test harness:
function testAll($r, $tests) {
foreach ($tests as $test) {
$isMatch = preg_match($r, $test, $groups);
$groupsJoined = join('|', $groups);
print("$test $isMatch $groupsJoined\n");
}
}
$tests = array('aaa', 'aaab',...
[精华] VC中BSTR、Char和CString类型的转换 - C/C++ - 清泛网 - 专注C/C++及内核技术
...配和释放。
5．下面介绍一种比较复杂的情况，利于对问题的深入理解。例如我们现在用到的ICF底层库就有很多类似下面的函数：
void CTestDlg::GetString(BSTR* state)
{
_bstr_t m_state(L"cc");
*state = m_state.copy();
}
其中_bstr_...
What is the difference between MySQL, MySQLi and PDO? [closed]
...ocedural style and the OO one with mysqli.
– Patrick Allaert
Jun 19 '10 at 9:31
@Patrick, thanks. I've corrected this...