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genetic algorithms in PHP code example of (evolutionary programming ) 20

Jan

21

2015

This posting and php code sample is about fascinating topic of Genetic Algorithms (GA) which simulate evolution using computer code to help find near-optimal solutions when dealing with problems that involve multiple disparate requirements. I recently began playing with Genetic algorithms (Genetic algorithms GA, for short) which are part of a class of evolutionary algorithms (EA) that make up ...

WordPress fixing unattached images – empty media library

Dec

3

2014

Having recently been the victim of WordPress site hack (vandalized) I was forced to move to a new hosting company, and move over all my content, but I didn’t want to copy my database verbatim, as I was worried that there may have been some SQL (Iframe like injected) into portions of my database. So what ...

Bootstrap Bootgrid with PHP json server side script 37

Nov

22

2014

I recently came across Jquery Bootgrid, which is Twitter Bootstrap (aka bootstrap) friendly table grid, that is very similar in function to Datatables.While not as feature rich as datatables (yet), it provides a very tiny 4Kb (minified and gzipped) footprint and allows you to leverage all the typography and layout control elements that are present in bootstrap. ...

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 ...

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