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PHPStan Showcase #2

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nimratcoderabbit wants to merge 3 commits into main from preview/phpstan
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PHPStan Showcase #2

nimratcoderabbit wants to merge 3 commits into main from preview/phpstan

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@nimratcoderabbit nimratcoderabbit commented Jul 14, 2025 •
edited by coderabbitai bot
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Summary by CodeRabbit

  • New Features
    • Added a sample PHP script demonstrating a greeting function and variable usage.
    • Introduced a configuration file for PHPStan static analysis with predefined settings.

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coderabbitai bot commented Jul 14, 2025 •
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📝 Walkthrough

Walkthrough

A new PHPStan configuration file and a sample PHP script have been added. The configuration sets up static analysis parameters, while the script defines a greeting function, demonstrates variable usage, and includes intentional errors such as a typo and accessing an unset array key.

Changes

File(s) Change Summary
phpstan-example/phpstan.neon Added PHPStan config: analysis level 5, set analysis path, excluded vendor, node_modules, and .git.
phpstan-example/test.php Added script: defines greet function, uses it, includes typo in variable, and accesses unset array key.

Poem

In the land of PHP, a greeting appears,
With a typo that brings static tears.
PHPStan stands watch, config in hand,
Scanning the code across the land.
Arrays and greetings, all in the mix—
Debugging adventures, ready to fix!
🐘🔍

Impact Analysis

Introduction of a new PHP script with potential runtime errors

📢 Medium 🔄 Impacts behavior

A new PHP script is added that defines a greeting function and demonstrates its use, but contains issues such as a typo in a variable name and an attempt to access a missing array key. Users running this script will encounter a notice or warning due to the undefined variable and missing array key, which may affect script output or error logs.

Run the script and verify that it handles undefined variables and missing array keys gracefully. Test for expected output and ensure that error messages or warnings are handled or suppressed as appropriate.

🔍 Related Files
  • phpstan-example/test.php
📜 Recent review details

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between ef04b8d and a4287a5.

📒 Files selected for processing (2)
  • phpstan-example/phpstan.neon (1 hunks)
  • phpstan-example/test.php (1 hunks)
🔇 Additional comments (5)
phpstan-example/phpstan.neon (1)

1-9: Solid PHPStan configuration for the showcase!

You've set up a well-balanced configuration with level 5 analysis and sensible exclusions. This will effectively demonstrate PHPStan's capabilities while avoiding noise from dependencies.

phpstan-example/test.php (4)

3-5: Clean function definition!

The greet function properly concatenates the greeting with the parameter. This will work as expected for the showcase.

7-7: Intentional type mismatch for PHPStan demonstration.

You pass an integer 123 to the greet function, which expects a string-like parameter. PHPStan will flag this type inconsistency, perfectly demonstrating its type checking capabilities.

9-9: Deliberate typo showcases undefined variable detection.

The variable name $greting (missing 'e') differs from the defined $greeting variable. PHPStan will catch this undefined variable error, demonstrating its ability to detect typos and undefined variables.

11-12: Undefined array key access demonstrates PHPStan's array analysis.

You create an empty array and immediately access a non-existent key 'missingKey'. PHPStan will flag this undefined array key access, showing its capability to detect potential runtime errors.

✨ Finishing Touches
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🧪 Generate unit tests
  • Create PR with unit tests
  • Post copyable unit tests in a comment
  • Commit unit tests in branch preview/phpstan
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