How to create a URL shortener?

I want to create a URL shortening service where you can write a long URL into the input field, and then the service will shorten the URL to "http://www.example.org/abcdef". In addition to "abcdef", you can have any six other strings, including az, AZ and 0-9. This makes 5.6-57 billion possible strings. My approach: ...

Posted on Sat, 28 Dec 2019 05:51:59 -0800 by irish21

How PHP can handle overdue or overtime orders and restore inventory

Order is a function that we often encounter in our daily development. Recently, we are developing an order overdue and overtime. I don't need to explain the overdue and overtime orders. In fact, both of them are the same problem, that is, the processing of unpaid orders. What we have to do is to cancel the unpaid orders automatically when they ...

Posted on Thu, 26 Dec 2019 11:14:32 -0800 by Jack McSlay

ECSHOP no refresh update modify cart quantity

ECSHOP no refresh update modify cart quantity Files to be modified /themes/default/flow.dwt /flow.php 1, Open the / themes/default/flow.dwt file Find the following code: <!-- {foreach from=$goods_list item=goods} --> There are two places in total. Change the first place here (about 53 lines), and change the next line to: ...

Posted on Wed, 25 Dec 2019 06:53:27 -0800 by phpdragon

phper opens the door of java - elastic search engine

Objective of this paper Learn about elastic search and apply it to the spring boot project. The protagonist Elastic search (open source, distributed, RESTful search engine) github address( https://github.com/elastic/elasticsearch) Getting to know Elasticsearch The php project that I participated in in in the early stage did not involve the sear ...

Posted on Tue, 24 Dec 2019 02:16:27 -0800 by ozzmans

Docker Series 7: Logical Volume

1. Introduction to Storage Volumes 1. What is a storage volume You synchronize a container's directory with a host's directory, which is called volume, or storage volume. When data is generated in the container, it is written directly to the physical disk, which solves the performance problem. Persistent storage of data is also achieved using ...

Posted on Mon, 23 Dec 2019 10:44:21 -0800 by BKPARTIES

2016 ACM/ICPC Beijing competition I (thinking binomial expansion)

Title Link: https://icpcarchive.ecs.baylor.edu/index.php?option=com_onlinejudge&Itemid=8&page=show_problem&problem=5698 Give you a string a of n (n < = 50000) consisting of 0-9 characters only, DefinitionFor each i(i=1,2,...,n), output. The answer is to model 1e9+7. From the meaning of the question, there i ...

Posted on Fri, 20 Dec 2019 11:40:51 -0800 by m0rpheu5

js realizes the function of bullet screen

Main points: Layout: input box, submit button, bullet area Create the barrage and get its related properties, such as color.... The color of the barrage is random Highly random Distance from left border, real-time change (difficulty) Blank space: nowrap That's about all I can think of. The complete code is attached, ...

Posted on Fri, 20 Dec 2019 07:16:55 -0800 by JVassie

ZMEM memory viewing tool use

1 install zmem tool yum install smem -y zmem characteristics System overview list By process, map, and user list Filter by user, map, or user Configurable columns from multiple data sources Configurable output units and percentages Configurable title and sum Read activity data from / proc Read data snapshot from directory image or com ...

Posted on Thu, 19 Dec 2019 06:56:59 -0800 by amorphous

PHP+jQuery China map hot data statistics display example

A PHP+jQuery implementation of China map hotspot data statistics display example, when the mouse slides to the map designated province area, in the pop-up prompt box to display the corresponding province data information. First, add a div "tip" to the page to display the map information and "map" to generate the map. 1 &lt ...

Posted on Wed, 18 Dec 2019 07:16:36 -0800 by amelhedi

PHP5.3 upgrade 5.5 installation process

reference material: http://www.blogjava.net/nkjav...http://www.111cn.net/sys/Cent... 1. Check the currently installed PHP package yum list installed | grep php If you have installed PHP packages, remove them first yum remove php.x86_64 php-cli.x86_64 php-common.x86_64 php-gd.x86_64 php-ldap.x86_64 php-mbstring.x86_64 php-mcrypt.x86_64 php-mys ...

Posted on Mon, 16 Dec 2019 12:04:48 -0800 by dugindog