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从一个开发的角度看负载均衡和LVS - 更多技术 - 清泛网 - 专注C/C++及内核技术
...允许的情况下我们会采用软负载，软负载解决的两个核心问题是：选谁、转发，其中最著名的是LVS（Linux Virtual Server）。
三、软负载——LVS
LVS是四层负载均衡，也就是说建立在OSI模型的第四层——传输层之上，传输层上有...
为什么我们程序员写不出好代码？ - 杂谈 - 清泛网 - 专注C/C++及内核技术
...提交的仓库里。如果代码行数都计算在内的话，原本一个问题只需10行代码即可解决，程序员有可能编写5000行代码，来让功能更加灵活和兼容，这样，他的代码总量就会增加5000行了。
衡量生产力反而会使代码变的更糟，让项目...
Remove .php extension with .htaccess
...e after you have done a lot of complicated URL
rewritings to CGI scripts etc.
Perhaps you could expand on why you want to remove the trailing slash all the time?
Remove .php extension
I need it to remove the .php
The closest thing to doing this that I can think of is to internally rewrite...
Get data from JSON file with PHP [duplicate]
...
what about three, four, etc. dimensinal arrays? Also, OP didn't ask to echo result
– vladkras
Nov 17 '16 at 9:03
add a comme...
configure: error: Unable to find gd.h anywhere under /usr/local/gd - ...
...：
1.在gd库的安装路径下搜索没有发现gd.h文件，但是在/etc/include下有gd.h文件
2.在网上搜索发现重装gd库可解决
3.重新安装gd库，在安装时出现：
configure.ac:64: error: possibly undefined macro: AM_ICONV
If this token and others are legitimate, pleas...
Create a CSV File for a user in PHP
...o-cache");
header("Expires: 0");
echo "record1,record2,record3\n";
die;
etc
Edit: Here's a snippet of code I use to optionally encode CSV fields:
function maybeEncodeCSVField($string) {
if(strpos($string, ',') !== false || strpos($string, '"') !== false || strpos($string, "\n") !== false) {...
Creating a config file in PHP
... comment - none of the parsing mechanisms would be the fastest (ini, json, etc) - but they're also not the parts of your application that you'd really need to focus on optimizing since the speed difference would be negligible on such small files.
...
How to validate an Email in PHP?
...ess can contain UTF-8 characters or special domain names like .live, .news etc.
Also I find that some email address can be on Cyrilic and on all cases standard regex or filter_var() will fail.
That's why I made an solution for it:
function valid_email($email)
{
if(is_array($email) || is_nume...
How to escape single quotes in MySQL
...handle any escaping. For example (Java):
Connection conn = DriverManager.getConnection(driverUrl);
conn.setAutoCommit(false);
PreparedStatement prepped = conn.prepareStatement("INSERT INTO tbl(fileinfo) VALUES(?)");
String line = null;
while ((line = br.readLine()) != null) {
prepped.setString(...
PHP - iterate on string characters
...like to be able to do foreach , array_map , array_walk , array_filter etc. on the characters of a string.
9 Answers
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