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Cross platform mobile development (android / ios) , consider Intel XDK 4

Oct

30

2014

These days a common idiom is that there’s an app for that (coined by Apple marketing) ,and for the two major platforms Android and iOS and too a lesser extent Windows Phone, there generally is a wide range of mobile applications that do all sorts of stuff, from complicated software suites similar to Excel and Word to simple sound ...

Using server-side PHP Datatables (grid) with SQLite / MySQL PDO 44

Mar

15

2014

I have been a fan of using datatables for a while and always wanted to generalize the server side example to be able to use SQLite, MySQL or any other PDO supported database. For the longest time in my projects I have used PHP AdoDB as my Database abstraction layer, mostly because it came with ...

Linux backup and rotate script 11

Jan

23

2014

A common task to do with backups is to rotate them , so that you have multiple copies of critical files going back x days. Below is a bash script (Linux command line) that does this. Why Rotate Backups? Why not just one current backup file… The primary reason to have a rotating backup system, ...

PHP backup monitoring and alert script: prevent backup rot… 3

Jan

2

2014

One of the key components with any IT software system is putting together an automated , reliable backup solution. Gone are the days of manually backing up files to a removable media, with our interconnected world we can simply setup some form of cloud back up and go. In a previous post I discussed how ...

Shell script code: show oldest | newest file in folder and file age 2

Oct

7

2013

Determining Oldest file and file age Today I had to write a short shell script to help figure out the oldest file in a particular folder, how old that file was (in secs or minutes). This is a pretty common requirement when dealing with file(s) folders such as working directories, where you periodically need to ...

Websockets : PHP code complete tutorial client & server 46

Jun

25

2013

Step-by-step to build a simple HTML5 using a PHP server for true server-push websocket communications I’m going to demo how you can create a simple and easy echo server, and communicate bidirectionally with various web clients. The ability for the server to send (or “push“) communications to the client (browser) at any moment provides a ...

HTTP long poll example in php ajax 4

May

11

2013

[icon name=”paper-plane” class=”” unprefixed_class=””] UPDATED: A better and easier way to do this is via Server Sent Events, Check out my recent post. Simple and easy PHP example of how to integrate long-polling (“hanging GET”) to simulate server PUSH and add more dynamic content to your web pages. As a standard HTTP is terrific protocol ...

Palindrome algorithms: What’s fastest reverse vs. compare. 1

Apr

11

2013

Today during a meeting a simple coding question came up as to how to write a palindrome function. A palindrome is a word, phrase, number, or other sequence of symbols or elements, whose meaning may be interpreted the same way in either forward or reverse direction.[1] Examples: mom , level, radar, tenet … There are quite a few programmatic solutions ...

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