Home » Author Archives: Olayemi Odunayo

Author Archives: Olayemi Odunayo

Olayemi Odunayo
I am a programmer and web developer, who has experience in developing websites and writing desktop and mobile applications. I have worked with both schematic and schemaless databases. I am also familiar with third party API and working with cloud servers. I do programming on the client side with Java, JavaScript, html, Ajax and CSS while I use PHP for server side programming.

Html5 Onclick Event Attribute Example

In HTML and JavaScript parlance an event can be either something the browser does or something the user does. What this means is that both the browser and the user can trigger an event. An example of a user triggered event is a button click. An example of a Browser event is page load finished, that’s when a webpage load ...

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HTML5 Number Validation Example

This Example will focus on Number validation on the web or simply HTML5 number validation. It is common place to process numbers on the web (the numbers might be a users age, date of birth or telephone numbers ). When or after collecting these numbers, it becomes necessary to validate this input, so as to avoid storing invalid or corrupted ...

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HTML5 Zoom Image Example

Zooming images is one useful technique every front end web developer should learn. You might need the knowledge in one of your projects. Zooming images can be tricky but after reading this article you would get the hang of it. In this example we would learn how to zoom images in HTML. For this example we will use: A computer ...

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HTML5 Range Slider Example

HTML5 has added so many new features to the HTML specification. With this newly added features we do not need to write complex or long JavaScript. One of the newly added element is the HTML <input> tag of type range. In this example we are going to learn how to work with this new element. For this example we will ...

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HTML5 Keygen Element Example

The HTML5 keygen element is used to generate client certificate which can be used for authentication. In this example we are going to demystify the HTML5 keygen element. For this example we will use: A computer with a modern browser installed. notepad++. 1. Getting Started The keygen tag is used to generate a key-pair. The public key will be sent ...

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HTML Email Validation Example

Sometimes we might have to create web apps that collect user data e.g names, date of birth, username, emails or even the user phone number. It is one thing to collect user data, its another thing to make sure that the user has entered valid information. For example we should always check durning user registration or login, if the email ...

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HTML5 Canvas Example

In this example we are going to learn about HTML5 canvas. Canvas was added to HTML in HTML5. HTML5 canvas is a powerful tool (or container) that is used for drawing images and shapes. For this example we will use: A computer with a modern browser installed notepad++ 1. What Is HTML/HTML5 HTML is an abbreviation for Hypertext MarkUp Language ...

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PHP Xmlencoder & Xmldecoder Example

In this example we are going to learn how to encode and decode XML (Extensible Markup Language) with PHP. For this example we will use: A computer with PHP >= 5.5 installed notepad++ 1. What Is XML XML (Extensible Markup Language) is a markup language like html. It is a syntax for creating data representation languages. XML was designed to ...

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PHP Uppercase And Lowercase Example

In this example we will show you how to manipulate strings from uppercase to lowercase and from lowercase to uppercase with PHP. This is neccesary when you need to format text. For this example we will use: A computer with PHP >= 5.5 installed notepad++ 1. Getting Started Changing text from uppercase to lowercase or from lowercase to uppercase can become necessary ...

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PHP Qr Code Generator Example

QR codes is an abbreviation for quick response code. It was first designed for the automotive industry in Japan. A QR code consists of black squares arranged in a square grid on a white background. QR codes is used to store information or data. Data stored with QR codes can be read with a smart mobile device. In this example ...

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