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大数据：用数据指导APP运营 - 资讯 - 清泛网 - 专注C/C++及内核技术
大数据：用数据指导APP运营数据问题一直是很多运营人员头疼的问题。之前的回答说了一些，但都没有展开说，我也不知道进阶篇能说到啥程度，但先说着吧。1 数据的定义...数据问题一直是很多运营人员头疼的问题。之前的回...
How to force a web browser NOT to cache images
...events where they fill the fields (date, place, title, description, links, etc.) and save it. On that form I allow the administrator to upload an image related to the event. On the HTML page displaying the form, I am also showing a preview of the picture uploaded (HTML img tag).
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马无夜草不肥——聊聊程序员接私活的那些坑 - 杂谈 - 清泛网 - 专注C/C++及内核技术
...，经常遇到是否能1000块开发出一个像淘宝那样的网站的问题，自身价值分分钟被贬低，差点被气得一口老血喷涌而出。
靠同学、朋友、同事介绍的渠道通常性价比要高，但有可以抱的大腿少哇。
二. 谈钱伤感情，不谈钱伤身...
Get Root Directory Path of a PHP project
...ome, I tried $_SERVER['DOCUMENT_ROOT'], dirname(), $_SERVER['SCRIPT_NAME'] etc. but this worked excellently!
– webblover
Nov 26 '14 at 16:40
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URL rewriting with PHP
...s far more flexibility in parsing URLs, config and database dependent URLs etc. For sporadic usage the hardcoded rewrite rules in .htaccess will do fine though.
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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...
淘宝应对双\"11\"的技术架构分析 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...直到有一天，我们碰到了传统的关系型数据库无法解决的问题——全属性选择器（如图5所示）。
图5 全属性选择器
这是一个非常典型的例子。为了说明问题，我们仍然以关系型数据库的思路来描述。对于笔记本电脑这个类...
php Replacing multiple spaces with a single space [duplicate]
... Unlike other answers, this command only replaces spaces (not newlines, etc...), which is exactly what is needed! Thank you so much!
– itoctopus
Oct 23 '19 at 12:21
add a c...
What are the advantages of Sublime Text over Notepad++ and vice-versa? [closed]
...epad++ mainly for quick editing files (Haskell, Python, C#, HTML, JS, CSS, etc.), copying & paste pieces of text and running macros on it, etc.
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Two-way encryption: I need to store passwords that can be retrieved
...ect against information disclosure vulnerabilities (XSS, remote inclusion, etc). If it gets out, the attacker can eventually crack the encryption (no encryption is 100% un-reversible without the key - As @NullUserException points out this is not entirely true. There are some encryption schemes tha...