juniorPHP
What are loops in PHP?
Updated May 24, 2026
Short answer
Loops repeatedly execute code blocks until a condition becomes false.
Deep explanation
PHP supports for, while, do-while, and foreach loops. foreach is optimized for arrays and collections. Choosing the correct loop improves readability and performance.
Real-world example
Loops are used to display database records in tables.
Common mistakes
- Creating infinite loops and modifying arrays unexpectedly during iteration.
Follow-up questions
- What is the difference between while and do-while?
- Why is foreach preferred for arrays?