LowFile-scopePHP Plug & play

Use type hints for better clarity

Add scalar/union/nullable type hints and return types to functions, methods, and properties; prefer interfaces over mixed.

Why this matters

Type hints improve readability, tooling, and runtime safety.

Side-by-side examples engineers can pattern-match during review.

Avoid

function save($id, $data) { /* ... */ }

Prefer

function save(string $id, array $data): bool { /* ... */ }

Bad

function f($x){...}

Good

function f(int $x): string { ... }

From the same buckets as this rule.

Critical
Avoid Empty Methods
Detect methods that have an empty body. If a method is empty, ensure that a comment is present explaining why it remains unimplemented.
maintainabilityreadability-refactor
Critical
Avoid equality operators in loop termination conditions
Check if loops use equality operators (== or !=) in termination conditions. These can lead to infinite loops if the condition is never met exactly. Instead, use relational operators like < or > for safer loop termination.
error-handlingreadability-refactor
Critical
Avoid Equality Operators in Loop Termination Conditions
Ensure that relational operators (`<`, `>`) are used instead of equality operators (`==`, `!=`) in loop termination conditions.
readability-refactor