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  Date interval add and sub prior to PHP 5.3

After PHP 5.3, we can use DateInterval object or date_interval_create_from_date_string() function to add or subtract days,weeks,months or years to or from a DateObject.But prior to PHP 5.3,we cannot do this. If we want to achieve the same effect. We need to use some skills. Here is one:We can use strtotime() function to achieve this. For example:$date=date('Y-m-d',time());$datestamp=strtotime(date('Y-m-d',strtotime($date)).' +1 day'); $datestamp=strtotime(date('Y-m-d',strtotime($date)).' +1...

   PHP,DateInterval,Class,PHP 5.3,PHP 5.2     2011-10-21 10:50:10

  3 Mistakes Website Owners Must Avoid to Enjoy SEO Success

The first thing a consumer asks themselves when they enter any website/webpage is whether they should stay or not. A consumer has just a few seconds during which, you have a chance to capture and retain them or else they will go. Whether or not they stay depends on a number of factors, but these are things that you can improve in on-site SEO, assisted of course by the web design and development team. Read on to find the three biggest peeves that are causing high bounce rates on your site and ho...

   SEO,WEB DESIGN     2015-11-20 02:33:07

  Top 8 website operation laws

As a website operator, in addition to have some necessary professional knowledge to master a website, such as prototype planning, interaction design, SEO, as well as basic html code, you should also know more about some of the theories which are good for site operations to ensure that the site can be long-term, stable. 1. Law of 250 Girard thinks every person knows at least 250 people. If you win the goodwill of a customer, it means you win the goodwill of 250 individuals; Conversely, if you off...

   Website management,Rules     2012-09-13 20:55:50

  Check mobile device using JavaScript

Sometimes developers want to know whether the user is using a mobile browser or a desktop browser so that they can build corresponding user experience. Although in many cases responsive web design would help solve component alignment issues, there are performance related considerations in some cases where some code should not be ran or some feature should not be available if user is on mobile browser. or vice versa This post will summarize a few ways which are commonly used to check whether a us...

   CHECK,MOBILE BROWSER,MOBILE DEVICE,JAVASCRIPT     2021-10-02 01:36:16

  TikTok confirms to sue US government

TikTok confirmed on Saturday to sue US government and US president Donald Trump over Trump administration's executive order on potentially banning TikTok in US. This Chinese short video app is the most downloaded app on App Store and PlayStore over past few months and has gained extremely high popularity among American youths. The parent company ByteDance claimed that the government's ban is illegal and hurts the interests of America people. "Even though we strongly disagree with the administra...

   BYTEDANCE,TIKTOK,US GOVERNMENT     2020-08-22 22:27:29

  Loading images progressively using Gaussian blur

The popular online publishing platform Medium has adopted an impressive image loading mechanism -- pure color - blur image loading - real image loading. Since images on Medium usually have high definition, it takes much time to load an image and hence brings a bad user experience if rendering the image after it's completely downloaded. The solution Medium comes out is to preload an small image when the real image is being loaded.  On Medium, the HTML code will have below pattern ...

   JAVASCRIPT,ALGORITHM,GAUSSIAN BLUR,MEDIUM,BLUR IMAGE     2016-09-25 03:33:00

  Polymorphism in OOP Programming

Polymorphism is the capability of an action or method to do different things based on the object that it is acting upon. This is the third basic principle of object oriented programming. Overloading, overriding and dynamic method binding are three types of polymorphism. Overloaded methods are methods with the same name signature but either a different number of parameters or different types in the parameter list. For example 'spinning' a num...

   JAVA,OOP,POLYMORPHISM,OVERLOADING,OVERRI     2014-10-23 08:11:50

  errGroup in GoLang explained

Today, let's talk about the usage and applicable scenarios of errGroup, which is often used. Why is it useful? Generally, when we use goroutine, we cannot return a value. If you want to pass out the result of the goroutine execution, you usually have to use the channel. The errGroup package is suitable if you want to know when the goroutine you opened encounters an error during execution and stop working, and I need to know the error value. errGroup usage The package needs to be downloaded and i...

   GOLANG,ERRGROUP,WAITHROUP,CONCURRENCY     2023-05-27 23:58:20

  Gaussian Blur Algorithm

Usually, image processing software will provide blur filter to make images blur. There are many algorithms to implement blur, one of them is called Gaussian Blur Algorithm. It utilizes Gaussian distribution to process images. This article is to introduce Gaussian Blur algorithm, you will find this is a simple algorithm. In fact, it is a kind of data smoothing which can be used in many situations. 1. Gaussian Blur theory The so called blur can be understood as taking a pixel as the average valu...

   ALGORITHM,GAUSSIAN BLUR, IMAGE BLUR     2020-09-12 02:34:40

  Configure static IP for Linux

When a Linux server is running, it has to have an IP so that other machines can talk to it. It is often desired that the server would own a static IP so that every time other machines want to connect to it, the same IP address would be used. This is extremely useful when there are virtual machines installed on a host machine where the virtual machine would start and stop now and then.  To configure static IP address for a Linux server, the /etc/network/interfaces needs to be updated. Assumi...

   LINUX,NETWORK,STATIC IP,DNS     2017-07-08 08:39:58

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