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40+ Techniques to enhance your php code
1. Do not use relative paths , instead define a ROOT path Its quite common to see such lines : 1require_once('../../lib/some_class.php'); This approach has many drawbacks : It first searches for directories specified in the include paths of php , then looks from the current directory. So many directories are checked. When a script is included by another script in a different directory , its base directory changes to that of the including script. Another issue , is that when a script is being ru...
PHP,Quirk,Trick,Efficiency,Techniques 2012-04-10 13:06:55
8 Very Simple and Easy Steps for Designing a Successful Launch Page
There are such a large number of new companies launching nowadays that you truly can't stand to waste your time for coding for your wonderful products. Also make sure that you are additionally making a list of your potential clients for your application. A Launching page will permit you to connect directly with great business people who can transform your company into compelling brand envoys. You can browse making a coming soon page or even a complete page including the items with their complete...
app development, mobile apps, app design, app development sydney, iphone app, iphone app development 2014-12-12 00:40:10
File System vs Core Data: the image cache test
Code for this project is on GitHub While doing a full re-write of Droplr's iOS app for the 2.0 launch, I couldn't find any good file/image caches out there had a particular feature I really wanted: extending item expiration whenever it's touched. I set out to write my own — which wasn't that much of a challenge — but somewhere along the process I had this crazy idea that perhaps (SQLite-backed) Core Data would be a much better tool for the job: No mismatch between cache index ...
File system.Image cache,Multimedia 2012-02-01 08:52:02
HeartBleed: Inside the heart, what causes the bleeding?
Just after a few weeks since Apple's famous goto fail bug, there is one bug in OpenSSL which catches the attention from the world again. The bug is named HeartBleed, found in OpenSSL library, a famous open source library supporting lots of SSL/TLS communication among server/client applications. The reason why this bug catches the attentions from the world is it affects almost all sites which are using the affected OpenSSL library, these includes many applications like Nginx server, some v...
OpenSSL,HeartBleed 2014-04-09 05:47:30
Engineer mindset in internet companies
This post tries to list down how we keep engineer mindset while doing development work. We engineers are the ones deliver the actual product by writing each and every line of the code, in order to deliver high quality and less buggy code, we should keep reminding ourselves what needs to be paid attention to during our daily development work. So what is engineer mindset? Engineer mindset is that we should keep in mind that each and every line of code we write should serve the purpose well a...
ENGINEER MINDSET,INTERNET COMPANY 2021-10-07 04:09:08
Comparing Floating Point Numbers, 2012 Edition
We’ve finally reached the point in this series that I’ve been waiting for. In this post I am going to share the most crucial piece of floating-point math knowledge that I have. Here it is:[Floating-point] math is hard.You just won’t believe how vastly, hugely, mind-bogglingly hard it is. I mean, you may think it’s difficult to calculate when trains from Chicago and Los Angeles will collide, but that’s just peanuts to floating-point math.Seriously. Each ti...
Floating point number,Comparison,True value 2012-02-23 07:11:03
Restore mocked variables in GoLang unit test
One of the guarding principles of writing unit test is that there should be no real external calls for dependant services. Unit test should run by its own and can run without issues on any environment including local, build, test environment. This indicates there should be some mock responses whenever an external call is needed so that different unit test scenarios can be covered. How can this be done in GoLang? In GoLang, anything can be assigned to a variable even including functions. A variab...
GOLANG,UNIT TEST,MOCK FUNCTION,RESTORE MOCK 2021-12-10 20:43:00
Build RPM package on Linux
1. Check the OS version and core version #uname -a #more /etc/redhat-release 2. Create relative directories /usr/src/redhat/SOURCES //Store source codes, patches, icons etc /usr/src/redhat/SPECS //Store specs about the process of building RPM packages /usr/src/redhat/BUILD //File after uncompressed are stored here /usr/src/redhat/RPMS //Store the binary files built with rpmbuild /usr/src/redhat/SRPMS&nbs...
A mini guide to HTTP referer
In HTTP header, there is a field named Referer which is to provide the referrer of the current accessed page. In this post, we will introduce the usage of HTTP referer field. On the web, when a user visits a webpage, s/he must be from some place. This place is usually referred a s referer. This information is very important to some website operators and server owners as they want to know where they get the traffic from and this helps them provide better service for potential targeted users. In t...
HTML,HTTP REFERER,REFERRERPOLICY 2019-06-29 02:23:25
A list of different CAPTCHA designs
Here is a list of website CAPTCHA designs which demonstrate all kinds of weird verification methods. By looking at these designs, as a website designer, you should distinguish which design is accessible and which is not.Is this human readable?What characters are in the picture?One moreWe will be crazy if we see theseOMG,What's the answer?IQ Test?Are you a normal person?You know how blind people read?ASCII PictureAre you an adult?3D verification codereCaptchaIt increase a new feature recently. It...
CAPTCHA,Website design 2012-07-19 11:51:06
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