Learn how to use the isset() function in PHP. This function allows you to check if a variable has been declared or has a non-null value. It is a powerful function that allows you to ensure required data exists, especially when dealing with arrays. Read More
This tutorial teaches you how to use the ternary operator in PHP. This operator sets a value based on whether a condition is true or false. It allows you to write cleaner and more concise code by avoiding bloated if...else statements. Read More
In this tutorial you will learn how to flush the DNS cache on Ubuntu 18.04, 20.04, 22.04 and newer. The DNS cache is what helps accelerate DNS requests on your system. Clearing the DNS cache can help with badly cached requests. Read More
This tutorial will teach you how to use switch statements in JavaScript. A switch allows you to execute different code based on the provided expression. Furthermore, it allows you to greatly simplify if...else chains that evaluate the same value. Read More
This guide will teach you how to decode and encode a string using Base64 in PHP. While initially designed to encode binary data for sending through text-based protocols such as email, it has a variety of other uses. Read More
This guide will teach you how to set the DNS servers on the Ubuntu operating system. A DNS server is what helps translate a domain name to an IP address. Changing the servers your connection uses is a straightforward process. Read More
In this tutorial, you will learn how to use the basename() function in PHP. This function allows you to get the trailing component of a given path. A trailing component is what is referred to as the basename of a path. Read More
Learn how to use the break statement within JavaScript. This statement helps you control the flow of the current flow by allowing you to break out of it. Break is also a crucial part of how the switch statement is utilized in JS. Read More
In this guide, you will learn how to use the break statement in PHP. This statement allows you to break out of the currently running loop. In addition to being used to control loops, it is also an essential part of the switch structure. Read More
In this guide, we will show you how to use the ping command on Ubuntu. This tool helps you check network connectivity from your device. You can even use this tool to check the latency between your device and the destination server. Read More
In this tutorial, we will show you how to use the continue statement in JavaScript. This statement allows you to control the flow of loops by jumping back to start of the loop. This is useful when you want to skip the current loop iteration. Read More
In this tutorial, you will learn how to use the substr() function in PHP. This function allows you to take a string and only return part of it. It is useful when you need to split a string into a smaller part. Read More
In this tutorial, we will show you how to write and use for...of loops within JavaScript. This type of loop is perfect for iterating over arrays and other iterable objects. All modern browsers feature support for the for...of loop. Read More
In this tutorial, you will learn how to install qBittorrent on Ubuntu. This software is one of the most popular torrent clients available. qBittorrent is lightweight and fast while also being packed with features. Read More
This guide will show you how to use PHP's is_numeric() function. This function allows you to check if a string is a number or a numeric string. It helps verify that the data you have received contains a number. Read More
In this tutorial, we will be showing you how to use the for...in loop in JavaScript. This loop allows you to iterate over the properties of an object. However, you should not use this type of loop to iterate over an array. Read More
In this tutorial, you will learn how to use the in_array() function in PHP. Using this function, you can quickly check whether a value exists within an array. It is cleaner to use than writing a for or foreach loop to process the array. Read More
In this tutorial, you will learn to write a do while loop in JavaScript. This type of loop allows you to run code before the loop runs. Depending on its result, you may have a task that may not necessarily need to loop. Read More
In this tutorial, you will learn how to use the sleep command on a Linux system. Sleep allows you to pause the execution of the session. It is useful when you need to pause a script before it runs the next command. Read More
This guide will teach you how to get the current page URL in PHP. There is no inbuilt function to get the current URL. Instead, we have to build it from the $_SERVER super global. This super global contains data such as the request URI. Read More