How to Prevent SQL Injection in PHP
In today’s web-driven world, data breaches often begin with one overlooked flaw— SQL injection . It’s one of the most common attacks against PHP websites, and the worst part? It can happen with just a simple text input. 🚨 The Problem: A Tiny Input Field, a Massive Security Risk Imagine you’re building a PHP login page. A user enters their email and password, and your code does something like this: $email = $_POST['email']; $password = $_POST['password']; $sql = "SELECT * FROM users WHERE email = '$email' AND password = '$password'"; Seems harmless, right? Now, a malicious user types this into the email field: ' OR 1=1 -- The resulting SQL becomes: SELECT * FROM users WHERE email = '' OR 1=1 --' AND password = '' The attacker bypasses your login completely—gaining access to any user account. ✅ The Solution: Use Prepared Statements with PDO Prepared statements prevent SQL injection by...