Phpstan array

Currently, it is not possible to define explicit array types as other programming languages do as Java does.

In some cases PHPStan knows about the literal value of an expression. Some types exist to only consist of other types learn more about union vs. This table describes which implementation is used for different bounds the X in template T of X :. Following list is by no means complete, please see the interface code for more details. The describe method returns a string representation description of the type, which is useful for error messages. For example StringType returns 'string'.

Phpstan array

Learn more about PHPDoc basics ». You can! Check out Stub Files ». PHPStan has a concept of implicit and explicit mixed. Missing typehint is implicit mixed - no type was specified as a parameter type or a return type. Explicit mixed is written in the PHPDoc. Rule level 9 is stricter about the mixed type. The only allowed operation you can do with it is to pass it to another mixed. Written as Type1 Type2. Read more about union types here ». Read more about intersection types here ». This is useful if we want to tell that a method from a parent class will return an object of the child class when the parent class is extended see example. Generics » , Generics By Examples ».

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It has a point of course, purely from static analysis it cannot reliably be inferred that c will always be of the string[] type - the phpdoc typehint declares it could be a string as well some day. In my practical case however, due to the definition of the API I'm calling, I cannot know beforehand that a and b are the only string keys, only that all non- c keys will be string keys with string values. Array shape does, to my knowledge, not support any definition for unknowns, for example the following are all unacceptable:. See lines 20 and I can now put anything I want in the array.

The default level is 0. Once you specify a configuration file, you also have to specify the level to run. This feature enables incremental adoption of PHPStan checks. You can start using PHPStan with a lower rule level and increase it when you feel like it. To be able to run a higher level without fixing all the reported errors first, check out a feature called the baseline. You can also use --level max as an alias for the highest level. This will ensure that you will always use the highest level when upgrading to new versions of PHPStan. Levels are cumulative - for example running level 5 also gives you all the checks from levels

Phpstan array

I am wondering whether there is a way, I can create a Type from within a ReturnTypeExtension so phpstan gets aware of this "polymorphic" Row class. Beta Was this translation helpful? Give feedback. I don't think any custom extension is necessary. I have never used the try page for something more than simple code that requires additional libraries such asi Dibi Row class.

Google type c to 3.5 mm

This feature enables usage of strong types in codebases where arrays of various specific shapes are passed around functions and methods. Sign up for free to join this conversation on GitHub. You switched accounts on another tab or window. The subtype always wins. Skip to content. Array shapes with arbitrary keys Sponsor PHPStan! There are methods that answer questions about properties, methods, and constants accessed on a type. Task list. Check out Stub Files ».

Learn more about PHPDoc basics ». You can!

In PHPStan 1. But it can also be used to read custom PHPDocs or class attributes. PHPStan has excessive tests for the built-in types in TypeCombinatorTest which is a great starting point to learn from. The accepts method tells us whether the type accepts a different type. Learn everything about this new feature in the documentation ». Sponsor PHPStan! It can look like this:. Defining type aliases will allow you to reference complex types in your PHPDocs by their alias. The callable typehint has been in PHP for a long time. You signed out in another tab or window.