![]() ![]() A side effect could be writing to a file, modifying Split out your functions if they are following different code pathsįunction createTempFile( string $name): voidĪ function produces a side effect if it does anything other than take a value in and ⬆ back to top Don't use flags as function parametersįlags tell your user that this function does more than one thing. $ast = $ this-> lexer-> lexify( $tokens) ![]() $tokens = $ this-> tokenizer-> tokenize( $code) Public function parse( string $code): void Public function _construct( Tokenizer $tokenizer, Lexer $lexer) Public function lexify( array $tokens): array Public function tokenize( string $code): array Variables Use meaningful and pronounceable variable names Years of collective experience by the authors of Clean Code.Īlthough many developers still use PHP 5, most of the examples in this article only work with PHP 7.1+. These are guidelines and nothing more, but they are ones codified over many Not every principle herein has to be strictly followed, and even fewer will be universallyĪgreed upon. Readable, reusable, and refactorable software in PHP. Software engineering principles, from Robert C. Make objects have private/protected members.Functions should only be one level of abstraction.Function arguments (2 or fewer ideally).Use default arguments instead of short circuiting or conditionals.Avoid nesting too deeply and return early (part 2).Avoid nesting too deeply and return early (part 1).Use the same vocabulary for the same type of variable.Use meaningful and pronounceable variable names. ![]()
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