Programming tutorials with practical examples - Code Bilby

How to calculate keyword frequency and draw the bar chart in PHP

This post shows you how to calculate the keyword frequency from text and draw the bar chart by using the JpGraph library.
PHP JpGraph Text Analysis

How to count words in a string in PHP

Show you how to count words and extract words from a string by using the PHP function str_word_count()
PHP

Create an object from a string variable in PHP

In PHP, objects can be created from string variables. It provides a very convenient way for you to define rules in text and handle requests dynamically. In this post, we show you how to do it.
PHP

Reverse an array in PHP by using recursion

Let's go back to a computer science textbook topic. Show you how to reverse an array in PHP without using any native array functions such as array_xxx().
PHP

PHP functions strcspn() and strspn()

It's convenient to use the PHP functions strcspn() and strspn() to find out the masking characters and filter a string
PHP

Write your own filters and functions in Twig

Create your own custom filters and functions that can be used in Twig templates
PHP Twig

String concatenation and interpolation in Twig

Two useful operations in Twig for string concatenation and interpolation
PHP Twig

Render a DateTime object in Twig

Use the date filter to render DateTime instances in Twig
PHP Twig

Setup Twig for the web project in WampServer on Windows

Setup Twig in WampServer on Windows
PHP Twig

A basic pagination function for a blog system

Use the PHP array_slice function to get the subset of data
PHP

PHP array_filter function

Filter an array by using a callback function in PHP
PHP

Create an array and access array elements in PHP

Create indexed arrays and associative arrays in PHP
PHP

How to use the Font Awesome's spinner icon in JavaScript

Learn to use the Font Awesome's spinner icon in JavaScript
jQuery JavaScript Font Awesome

Make Ajax requests from the Web API XMLHttpRequest

How to make Ajax requests from the Web API XMLHttpRequest
JavaScript PHP HTML

Make Ajax requests from jQuery

How to create ajax requests from jQuery
jQuery JavaScript PHP HTML

Create and update project images in LEGO EV3

This video shows you how to create and update project images with the LEGO EV3 image editor
LEGO EV3 Robots

Image folders of EV3 Display block

How to use the image folder of LEGO EV3 display block
LEGO EV3 Robots

Make a snowy screen on the LEGO EV3 display

Show you how to use the display block to make a snowy screen on the LEGO EV3 display
LEGO EV3 Robots

LEGO Mindstorms EV3 Track3r Mission 5

This video shows you how to implement the LEGO Mindstorms EV3 Track3r Mission 5
LEGO EV3 Robots

LEGO Mindstorms EV3 Track3r Mission 4

This video shows you how to implement the LEGO Mindstorms EV3 Track3r Mission 4
LEGO EV3 Robots