If you are looking for a battle-tested library with a possibly cleaner architecture and similar features you may find your app of choice at llaville/php-compat-info for now.

Php Version Requirement Analyser

This repository contains a library and a console application to validate your php files' version requirements. The library makes heavy use of the PHP-Parser library. The api is not yet final, if you want to use the library component yourself you may want to lock your dependencies on a specific tag.

Installation and usage of the cli app

The packed pvra.phar file is available as a download on the release page. Run php pvra.phar to see a list of available commands. If you downloaded or cloned the repository itself run php bin/pvra from the root of the repository. Make sure all dependencies are available (not required if you run from phar), this requires you to be able to run <php> composer install --prefer-dist --no-dev on your machine.

Pvra can be installed globally using the composer global require suralc/pvra:dev-master command. Be sure to add the $COMPOSER_HOME/vendor/bin directory to your $PATH. Read more about composer global

Example

<?php

trait Gamma
{
    public function test(callable $abc, ...$vars) {
        return $this->test()['abc'];
    }
}

CLI:

php pvra.phar analyse:file ./tests/readme_example.php --preferRelativePaths

OUTPUT:

Running analysis for "./tests/readme_example.php"
Required version: 5.6.0
+---------+-----------------------------------------------+------+
| Version | Message                                       | Line |
+---------+-----------------------------------------------+------+
| 5.6.0   | Variadic arguments require PHP 5.6.0          | 5    |
| 5.4.0   | Usage of the trait keyword requires PHP 5.4.0 | 3    |
| 5.4.0   | The callable typehint requires PHP 5.4.0      | 5    |
| 5.4.0   | Function dereferencing requires PHP 5.4.0     | 6    |
+---------+-----------------------------------------------+------+

CLI - Options

Name	Short name	Description
--preventNameExpansion	-p	Prevent the expansion of names. This may improve performance. Some detections might not work.
--preferRelativePaths	-s	Only show relative paths in the console output. Fall back to absolute paths if no simple relative path can be built
--analyser	-a	Name of an analyser to attach. If this option is not set, all default analysers will be loaded. Possible values are: php-5.4, php-5.5, php-5.6, php-7.0, lib-php
--libraryDataSource	-l	Path to a file containing library information. Defaults to the file shipped with the library/phar.
--messageFormatSourceFile	-m	Path to a file containing message templates. Defaults to the file shipped with the library/phar.
--saveFormat		Format of the export. Only json is supported at this time.
--saveAsFile		If this option is set the results will be saved to the file specified as value.

Note: Classes within the src/Console directory are not part of the public API

Installation and usage of the library.

Run composer require suralc/pvra --prefer-dist in the root of your project and include the composer autoloader.

Please be aware that --prefer-dist will reduce the download size of the loaded package by removing the tests directory and other unused files.

<?php

// autoloading and namespace import is assumed

$analyser = new \Pvra\StringAnalyser('<?php trait abc{}');

$analyser->attachRequirementVisitor(new Php54Features);
$analyser->attachRequirementVisitor(new Php55Features);
$analyser->attachRequirementVisitor(new Php56Features);
$analyser->attachRequirementVisitor(new LibraryChanges);

$result = $analyser->run();

echo $result->getRequiredVersion(), PHP_EOL; // 5.4.0

foreach($result as $r) {
    echo $r['msg'], PHP_EOL; // Outputs: Usage of the trait keyword requires PHP 5.4.0 in <string>:1
}

Building the phar

Box is required to build the phar. Run box build in the repository root. Box requires the code to be inside a git repository.

Api - Documentation

You may find the incomplete API-documentation here. Please be aware that at this time it is incomplete.

Todo

See here

suralc / pvra