How Loops Work in PHP: A Complete Guide for Beginners

PHP offers four main loop types: while (checks condition first), do-while (runs at least once), for (best for known iterations), and foreach (designed for arrays). Each loop serves different scenarios - while for conditional repetition, for when you know iteration count, and foreach for array traversal. Control statements like break and continue provide flow control, while array_map() offers a functional alternative to loops. Nested loops handle multi-dimensional data but can impact performance with large datasets.