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Quora如何在快速开发中保持高品质代码 - 项目管理 - 清泛网 - 专注C/C++及内核技术
...们的审查标准有别。如果潜在的漏洞/错误会造成严重的问题,代价高昂,我们就会改变平时的提交后审查流程,转为提交前审查。典型情况包括:
触及用户隐私和匿名的代码
触及影响大量其他代码的核心抽象
触及基础结构...
How to calculate the bounding box for a given lat/lng location?
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Here is a PHP implementation from the specification found at JanMatuschek.de: github.com/anthonymartin/GeoLocation.class.php
– Anthony Martin
Dec 3 '12 at 14:10
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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...
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...
Mixing a PHP variable with a string literal
...ake a look to the Variable parsing - Complex (curly) syntax section of the PHP manual.
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Can an Option in a Select tag carry multiple values?
... options in a HTML form:
(the data will be collected and processed using PHP)
15 Answers
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新手程序员应该知道的7件事 - 创意 - 清泛网 - 专注C/C++及内核技术
...的甚至是几十年)作为专业软件工程师的工作经验。我的问题是,如果他们现在回过头去,哪些技能和知识是他们第一次以写代码为生的时候就希望能够掌握的。无论你是一个刚毕业刚开始自己第一份开发工作的大学生,还是年...
Null vs. False vs. 0 in PHP
...other good "nothing" entities.
What is the difference, specifically in PHP? Does it have something to do with === ?
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How to fix “Headers already sent” error in PHP
... / setrawcookie
Output can be:
Unintentional:
Whitespace before <?php or after ?>
The UTF-8 Byte Order Mark specifically
Previous error messages or notices
Intentional:
print, echo and other functions producing output
Raw <html> sections prior <?php code.
Why does it...
How to destroy an object?
...It will stay there, however if you unset the object and your script pushes PHP to the memory limits the objects not needed will be garbage collected. I would go with unset() (as opposed to setting it to null) as it seems to have better performance (not tested but documented on one of the comments fr...
