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avatar-david-marin.jpg David Marin

All Posts by David Marin

Validating Okta Access Tokens in PHP using AWS API Gateway and Lambda Authorizers

Note: In May 2025, the Okta Integrator Free Plan replaced Okta Developer Edition Accounts, and the Okta CLI was deprecated. We preserved this post for reference, but the instructions no longer work exactly as written. Replace the Okta CLI commands by manually configuring Okta following the instructions in our Developer Documentation. Running REST APIs with AWS Lambda and AWS API Gateway has recently become a very popular option. Although AWS provides its own mechanisms to...

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SQL Injection in PHP: Practices to Avoid

SQL injections are one of the most common vulnerabilities found in web applications. Today, I’m going to explain what a SQL injection attack is and take a look at an example of a simple vulnerable PHP application accessing a SQLite or MySQL database. After that, we’ll look at several methods to prevent this attack, fixing the problem. Prerequisites Make sure you have the following software installed and enabled on your system: PHP 7 Composer PHP...

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