phan / phan/phan

Warn about $$var in php 7.4 short arrow functions

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enhancement
Dominant language
PHP
Stars
5.6k
Forks
365
Avg merge
1h 25m
Merged PRs (30d)
6

Description

Do this while building the list of variables it uses. PHP will not inherit indirect variables from the outer scope.

Contributor guide

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start in the logic that builds the list of variables used by PHP 7.4 short arrow functions, then reproduce a case involving $$var. The completed change should warn that indirect variables are not inherited from the outer scope; verify the warning with the relevant analyzer test if one is available.

Written by the indexing model from the issue text.

Assessment

Tech stack
php
Domain
devtools
Issue type
Feature
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
45/100

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