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How do I immediately execute an anonymous function in PHP?
...y following "()". Works just like JS thanks to uniform variable evaluation order.
https://3v4l.org/06EL3
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How can I add new keys to a dictionary?
...nary, but I personally prefer not to explicitly create a new dictionary in order to update another one.
– bgusach
Feb 13 '19 at 8:38
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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...
Difference between “include” and “require” in php
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PHP cURL custom headers
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When and why I should use session_regenerate_id()?
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You should use session_regenerate_id() in order to stop session hijacking and session fixation.
From this Security.SE answer:
Session hijacking refers to stealing the session cookie. This can be most easily accomplished when sharing a local network with other c...
In where shall I use isset() and !empty()
...riables and not just values, so isset("foobar") will raise an error. As of PHP 5.5, empty supports both variables and expressions.
So your first question should rather be if isset returns true for a variable that holds an empty string. And the answer is:
$var = "";
var_dump(isset($var));
The typ...
Get current domain
...ometimes forget which one to use myself - I think this can be nifty.
<?php
// Change banana.com to the domain you were looking for..
$wordToHighlight = "banana.com";
$serverVarHighlighted = str_replace( $wordToHighlight, '<span style=\'background-color:#883399; color: #FFFFFF;\'&g...
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...