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迅雷发布无限节点CDN 每GB仅0.1元 - 资讯 - 清泛网 - 专注C/C++及内核技术
...欠发达地区节点资源则明显不足，这种资源分布不均匀的问题，直接影响了CDN的价值。
与众CDN服务商节点增加方式不同的是，迅雷在业内启用个人节点，通过连接至千万个家庭路由的赚钱宝们，织成一张节点均匀密布于全网的...
Memcached下一站：HandlerSocket！ - 更多技术 - 清泛网 - 专注C/C++及内核技术
...形中让Memcached成为故障的根源：
Memcached数据一致性的问题：当MySQL数据变化后，如果不能及时有效的清理掉过期的数据，就会造成数据不一致。这在强调即时性的Web2.0时代，不可取。
Memcached崩溃后的雪崩效应：作为缓存的Memc...
Saving timestamp in mysql table using php
...If so mysql expects the format to be Year-month-day Hour:minute:second. In order to save the timestamp you will have to convert the field to numeric using a query like
alter table <table_name> change <field> <field> bigint unsigned
If you are using the current time you can use n...
一个故事告诉你比特币的原理及运作机制 - 创意 - 清泛网 - 专注C/C++及内核技术
...事的方式，逐步告诉大家比特币提出的动机、解决了什么问题以及一些关键组件的目标和设计方案。
问题的提出
我们先从比特币产生的动机开始。
以物易物的比特村
话说在这个世界上，有一个叫比特村的小村庄，村庄共有...
What's the difference between utf8_general_ci and utf8_unicode_ci?
...; not everybody sorts their characters in what we would call 'alphabetical order'.
As far as Latin (ie "European") languages go, there is not much difference between the Unicode sorting and the simplified utf8mb4_general_ci sorting in MySQL, but there are still a few differences:
For examples, the ...
using href links inside tag
...s that use form controls to change the presentation of the page (eg., sort order.) These can be implemented either by AJAX to load new content into the page, or, in older implementations, by triggering new page loads, which is essentially a page link.
IMHO these are valid uses of a form control.
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How to use Python to login to a webpage and retrieve cookies for later usage?
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“Cannot send session cache limiter - headers already sent” [duplicate]
...ge the encoding of my document from UTF-8 to ANSI. UTF-8 has a hidden Byte Order Mark prior to the start of the file's contents, so that was getting sent before session_start had a chance to do its thing.
– AaronSieb
Sep 21 '15 at 19:36
...
href image link download on click
...
<a href="download.php?file=path/<?=$row['file_name']?>">Download</a>
download.php:
<?php
$file = $_GET['file'];
download_file($file);
function download_file( $fullPath ){
// Must be fresh start
if( headers_sent()...
Parse query string into an array
...se it does not work if you use the same key multiple times (yes because in php array keys are unique). So ?key=lorem&key=ipsum will result in array(["key"]=>"ipsum") The question is, is there a function to get s.th. like this array(["key"]=>array("lorem", "ipsum")) or do I have to create t...