PHP 7 interview question
How do you pin a project to work on PHP 7 while preparing for PHP 8 with Composer?
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More most-asked PHP 7 questions
- What are typed properties in PHP 7.4?
- How do return type declarations work in PHP 7?
- What were the headline improvements of PHP 7.0 over PHP 5.6?
- Explain scalar type declarations and coercive vs strict mode in PHP 7.
- Explain the `Throwable`, `Error` and `Exception` hierarchy introduced in PHP 7.
- What are nullable types in PHP 7.1?
- What does the null coalescing operator `??` do, and how is it different from `isset()` with a ternary?
- What are arrow functions in PHP 7.4 and how do they differ from closures?