Backend
Deep dives into server-side concepts every backend developer encounters. From unique identifier formats like UUID and ULID to data serialization standards - practical explanations with real code examples in PHP, Python, and JavaScript.
UUID Versions Explained: v1, v3, v4, v5, v6, and v7
A complete technical breakdown of all UUID versions. Covers time-based, name-based, and random UUIDs, with code examples in PHP, Python, and JavaScript, and a practical guide to choosing the right version.
Unix Timestamps: The Developer's Complete Guide
Everything developers need to know about Unix timestamps: what they are, why 1970, timezone pitfalls, milliseconds vs seconds, the Year 2038 problem, and code examples in PHP, Python, and JavaScript.
UUID vs ULID: Which Unique ID Should You Use?
A deep-dive comparison of UUID v4, ULID, and UUID v7. Covers internal structure, database index performance, security trade-offs, code examples in PHP and JavaScript, and a practical guide for choosing the right format.