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Mac 下载安装Redis - 更多技术 - 清泛网 - 专注C/C++及内核技术
...文件以及对配置文件进行修改
sudo cp redis.conf /private/etc/
sudo vi /private/etc/redis.conf
找到daemonize 把 后面的no改成yes，不然每次启动会占用一个终端的session。
其他的配置根据需要来。我这里不啰嗦。然后 :wq 保存退出。
E....
高并发服务端分布式系统设计概要 - C/C++ - 清泛网 - 专注C/C++及内核技术
...拆分），并时刻不要忘记备份、扩展、意外处理等讨厌的问题。说起来都比较简单，但设计和实现起来，就会比较困难。以前我的文章，都是“从整到零”的方式来设计一个系统，这次咱们就反着顺序来。
那我们首先来看，我...
PHP and MySQL - how to avoid password in source code? [duplicate]
...se a configuration file.
Many frameworks use this (Zend, CakePHP, Kohana, etc) and it's the most common way of doing things (even in a non-PHP environment such as ASP.NET with its web.config files). This allows you also to copy over configuration values from environment to environment by just copyi...
How does PHP 'foreach' actually work?
...ointer backup+restore mechanism is that changes to the IAP through reset() etc. usually do not impact foreach. For example, the following code executes as if the reset() were not present at all:
$array = [1, 2, 3, 4, 5];
foreach ($array as &$value) {
var_dump($value);
reset($array);
}
/...
PHP mkdir: Permission denied problem
...er window and from the menu bar, choose Go > Go To Folder > /private/etc/apache2
now open httpd.conf
find:
User _www
Group _www
change the username:
User <YOUR LOGIN USERNAME>
Now restart apache by running this form terminal:
sudo apachectl -k restart
If it still doesn't work...
How to add elements to an empty array in PHP?
... you described will work.
$cart = array();
$cart[] = 13;
$cart[] = 14;
// etc
//Above is correct. but below one is for further understanding
$cart = array();
for($i=0;$i<=5;$i++){
$cart[] = $i;
}
echo "<pre>";
print_r($cart);
echo "</pre>";
Is the same as:
<?php
$cart =...
LINGO使用指南 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...GO使用指南LINGO使用指南LINGO是用来求解线性和非线性优化问题的简易工具。LINGO内置了一种建立最优化模型的语言，可以简便地表达大规模问题，利用LIN...
LINGO是用来求解线性和非线性优化问题的简易工具。LINGO内置了一种建立...
内存调试技巧：C 语言最大难点揭秘 - C/C++ - 清泛网 - 专注C/C++及内核技术
...管理的重要性
存在内存错误的 C 和 C++ 程序会导致各种问题。如果它们泄漏内存，则运行速度会逐渐变慢，并最终停止运行；如果覆盖内存，则会变得非常脆弱，很容易受到恶意用户的攻击。从 1988 年著名的莫里斯蠕虫 攻击到...
How to identify server IP address in PHP
... @andreas It shouldn't. The local hostname should be in the /etc/hosts file and will be fast - although it might just be 127.0.0.1. If it does have to call DNS then it will be slow like you say.
– Ariel
Feb 12 '15 at 10:39
...
Remove excess whitespace from within a string
...str = str_replace(' ','',$str);
Or, replace with underscore, & nbsp; etc etc.
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