SQL Injection in PHP: how to prevent it with prepared statements (quick guide)
SQL injection is one of the most common and dangerous threats to a web application: the attacker manipulates the SQL queries that your code executes in order to read, modify or delete information that does not belong to him. It can compromise data integrity, expose sensitive information and damage the reputation of your site. In PHP it is avoided with a few customs, and the main one is…
SQL injection is a common and dangerous threat to web applications, allowing attackers to manipulate SQL queries to read, modify or delete unauthorized information. This can compromise data integrity, expose sensitive information and damage a site's reputation. In PHP, prepared queries can prevent SQL injection by separating the query from user data.
To defend against SQL injection, developers can use prepared statements with MySQLi or PDO, and also combine this with additional measures such as input validation, not displaying SQL errors to users, giving minimal permissions to application accounts, and keeping everything updated.
Written by urgent.news from Dev.to's report — not a translation of it. Machine-written — may contain errors; check the original before relying on it.
