personal blog of travels, tech & opinions
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Programming and software
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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,…
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…
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…
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,…
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)…
[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…
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…
