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一文讲透区块链技术原理 - 资讯 - 清泛网 - 专注C/C++及内核技术
...定是可信的。
区块链技术原理的来源可归纳为一个数学问题：拜占庭将军问题。拜占庭将军问题延伸到互联网生活中来，其内涵可概括为：在互联网大背景下，当需要与不熟悉的对手方进行价值交换活动时，人们如何才能防止...
Which $_SERVER variables are safe?
...lett.org/blog/2006/mar/server-name-versus-http-host.
‡ See https://bugs.php.net/bug.php?id=64457, http://httpd.apache.org/docs/current/mod/core.html#usecanonicalphysicalport, http://httpd.apache.org/docs/2.4/mod/core.html#comment_999
Entirely arbitrary user controlled values
These values are no...
instantiate a class from a variable in PHP?
...r as I can tell) must declare the full namespace path of a class.
MyClass.php
namespace com\company\lib;
class MyClass {
}
index.php
namespace com\company\lib;
//Works fine
$i = new MyClass();
$cname = 'MyClass';
//Errors
//$i = new $cname;
//Works fine
$cname = "com\\company\\lib\\".$cname...
腾讯Tencent开源框架介绍（持续更新） - 开源 & Github - 清泛网 - 专注C/C++及内核技术
...，对性能监控项的异常数据进行采集和分析，输出相应的问题分析、定位与优化建议，从而帮助开发者开发出更高质量的应用。当前工具监控范围包括：崩溃、卡顿和爆内存。
6、分布式及事务：
https://github.com/Tencent/phxpaxos ...
AJAX POST and Plus Sign ( + ) — How to Encode?
I'm POSTing the contents of a form field via AJAX to a PHP script and using JavaScript to escape(field_contents) . The problem is that any plus signs are being stripped out and replaced by spaces. How can I safely 'encode' the plus sign and then appropriately 'decode' it on the PHP side?
...
Convert a PHP object to an associative array
... (what you asked for) it's fine.
Also see this in-depth blog post:
Fast PHP Object to Array conversion
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Sending multipart/formdata with jQuery.ajax
I've got a problem sending a file to a serverside PHP-script using jQuery's ajax-function.
It's possible to get the File-List with $('#fileinput').attr('files') but how is it possible to send this Data to the server? The resulting array ( $_POST ) on the serverside php-script is 0 ( NULL ) when us...
MySQL主从服务器数据一致性的核对与修复 - 数据库(内核) - 清泛网 - 专注C/...
...性的核对与修复我上一次遇到MySQL主从服务器数据一致性问题，想想是几年前的事情了，还依稀记得当时惊慌失措的情景，好在最后借助Maatkit解决了问题。几年...我上一次遇到MySQL主从服务器数据一致性问题，想想是几年前的事...
Tips for debugging .htaccess rewrite rules
... and does what you intend with a fully range of test URIs.
See regexpCheck.php below for a simple script that you can add to a private/test directory in your site to help you do this. I've kept this brief rather than pretty. Just past this into a file regexpCheck.php in a test directory to use it ...
Create or write/append in text file
...s:
$txt = "user id date";
$myfile = file_put_contents('logs.txt', $txt.PHP_EOL , FILE_APPEND | LOCK_EX);
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