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Dollar Sign Operator in JavaScript – What does $ mean in JS?
In JavaScript, the dollar sign operator ($) is a commonly used shorthand notation that represents the jQuery library. The jQuery library is a lightweight JavaScript library that simplifies HTML document traversal, event handling, and animation for fast and efficient web development. However, in recent years, the dollar sign operator has been used in other ways…
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CodeIgniter 4 Components
CodeIgniter 4 is a popular PHP framework used for developing web applications. It comes with a variety of components that make it easy to build applications quickly and efficiently. In this article, we’ll take a closer look at the components that make up CodeIgniter 4 and what they do. The core component of CodeIgniter 4…
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Category Tree from multilevel categories in one Query in Laravel 9
To generate a category tree from a multilevel category structure in one query using Laravel 9, you can use a recursive function and a self-join. Here’s an example: First, create a categories table in your database with the following columns: id, name, and parent_id. Next, create a model for the Category table: Then, add the…
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How to get data from multilevel categories in Laravel 9
First, let’s create a new migration for the categories table. You can use the following command to generate a migration file: Then, in the up method of the migration file, define the schema for the categories table: Here, we have defined the name column to store the name of the category, the parent_id column to…
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The best and must have libraries for Laravel
Laravel is a powerful PHP framework with a robust ecosystem of libraries and packages that can extend its functionality. The framework offers a wide range of features and tools for building modern, scalable web applications. One of the key strengths of Laravel is its elegant and intuitive syntax, which makes it easy for developers to…
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Understanding the Syntax of PHP – PHP Basics
PHP is a popular programming language for web development that is used to create dynamic and interactive websites. Understanding the syntax of PHP is the first step towards learning how to write PHP code. In this article, we will discuss the basic syntax of PHP and to help you get started. PHP Syntax Basics PHP…
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Understanding PHP Closures – The Basics, Use Cases and Tips
PHP Closures, also known as anonymous functions, are a powerful tool in the PHP language. They allow developers to define small, self-contained blocks of code that can be passed around and executed as needed. Closures provide a level of abstraction, making it easier to write clean, maintainable code and improve code reusability. Consider the following…
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Key combination to add H2 tag to selected text in ContentEditable DIV using JavaScript/jQuery
Here is an example of a JavaScript/jQuery event handler for the key combination of CTRL + SHIFT + H for a contenteditable div. When you select text within the contenteditable div and press the combination of the three keys (CTRL + SHIFT + H), the selected text will be enclosed in an <h2> tag. This…
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Compare two Strings and print the texts marking the differences between them in PHP
Here is a function that compares two strings and outputs the strings, with different letters or words marked. This function first splits the two strings into arrays of words. It then loops through each of the arrays and compares the words, marking any that are different in red. The output is displayed as two columns,…
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HTTP Requests in PHP with cURL with Examples
cURL is a widely used library for making HTTP requests in PHP. It provides an easy way for PHP scripts to interact with web servers and retrieve or send data. In this article, we’ll look at how to use cURL to make various types of HTTP requests and how to handle the response. Setting Up…
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Session in PHP: Create, Update, Destroy and Work with $_SESSION
Sessions are an essential component in the PHP web development process. They provide a way for web developers to store and manage user data across multiple pages within a website. The use of sessions helps to maintain state and provide a more personalized experience for the user. In this article, we will discuss five key…
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PHP: Find the most similar String from an Array of Strings (3 Ways with Examples)
When working with large sets of data, it is often necessary to find the most similar string in a list of strings. This could be used in a spell checker, a search function, or a data cleansing tool. In PHP, there are several ways to accomplish this task, each with its own set of pros…
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How to create Template with Header and Footer in CodeIgniter
Creating a consistent layout for your website is crucial for maintaining a professional look and feel. One way to achieve this is by using a template with a header and footer. In this article, we will be discussing how to create a header and footer template in CodeIgniter, a popular PHP framework. We will cover…
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Why you should choose CodeIgniter PHP Framework for your project
CodeIgniter is a lightweight PHP framework that is known for its simplicity and ease of use. It is an open-source framework that has been around for over a decade, and it has been used to build a wide variety of web applications. In this article, we will discuss the benefits of using CodeIgniter for your…
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How you write a JavaScript function that auto-executes
You can write a JavaScript function that auto-executes by creating an anonymous function and immediately invoking it: Alternatively, you can also use the async/await syntax: Both of these examples define an anonymous function that is immediately invoked. The function does not have a name and cannot be invoked again after its initial execution. Auto-executing JavaScript…