How to Write a Secure PHP Script for File Uploads File uploads are a common feature in web applications, but they can introduce significant security risks if not handled properly. In this article, we'll walk through the steps to securely upload files to a server using PHP. We'll cover key security measures such as file validation, limiting file types, setting file size limits, and managing file storage. We will also create reusable functions to handle the upload process. 1. Create the HTML Form First, we need an HTML form that allows users to select and upload a file. Ensure that the form uses the POST method and includes the enctype="multipart/form-data" attribute. <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Secure File Upload</title> </head> <body> <form action="upload.php" method="post" enctype="multipart/
Leadership is a multifaceted concept with various styles that cater to different needs and situations. Understanding these styles can help you develop your leadership skills and adapt to diverse scenarios. In this article, we'll explore seven prominent leadership styles, each accompanied by insightful examples from influential authors. Let's dive in! Type 1: Transformational Leadership 🚀 Transformational Leadership: Inspiring Change and Innovation Transformational leadership focuses on inspiring and motivating followers to achieve extraordinary outcomes and, in the process, develop their own leadership capacity. Example from Author: James MacGregor Burns James MacGregor Burns, in his book "Leadership," describes transformational leaders as those who seek to change the status quo by appealing to their followers' values and sense of higher purpose. 🔸 Characteristics: - Inspirational Motivation - Intellectual Stimulation - Individualized Consideration - Idealized I