✅ Nette CodeChecker: A simple tool to check source code against a set of Nette coding standards.

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v3.2.3 2021-01-24 22:31 UTC


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The tool called that checks and possibly repairs some of the formal errors in your source code.

Documentation can be found on the website. If you like it, please make a donation now. Thank you!


Usage: php code-checker [options]

    -d <path>             Folder or file to scan (default: current directory)
    -i | --ignore <mask>  Files to ignore
    -f | --fix            Fixes files
    -l | --eol            Convert newline characters
    --no-progress         Do not show progress dots
    --strict-types        Checks whether PHP 7.0 directive strict_types is enabled

Without parameters, it checks the current working directory in a read-only mode, with -f parameter it fixes files.

Before you get to know the tool, be sure to backup your files first.

You can create a batch file, e.g. code.bat, for easier execution of Code-Checker under Windows:

php path_to\Nette_tools\Code-Checker\code-checker %*

What Code-Checker Does?

  • removes BOM
  • checks validity of Latte templates
  • checks validity of .neon, .php and .json files
  • checks for control characters
  • checks whether the file is encoded in UTF-8
  • controls misspelled /* @annotations */ (second asterisk missing)
  • removes PHP ending tags ?> in PHP files
  • removes trailing whitespace and unnecessary blank lines from the end of a file
  • normalizes line endings to system-default (with the -l parameter)


Install it via Composer. This project is not meant to be run as a dependency, so install it as standalone:

composer create-project nette/code-checker

Or install it globally via:

composer global require nette/code-checker

and make sure your global vendor binaries directory is in your $PATH environment variable.

It requires PHP version 8.0.