Show differences between constants defined in PHP files
configdiff is a command-line tool to compare two PHP configuration files containing configuration values defined as constants. One file being the configuration "template" or "distribution version", the other being the concrete config file.
configdiff checks whether both files contain the same constant names and outputs the missing and/or superfluous constant names.
The script should be called as part of a deployment to guard against missing configuration values, e.g. when new values have been added to the template as part of ongoing development.
composer require wmde/configdiff
vendor/bin path (project-local or global) is in your
$PATH, you can just call
configdiff TEMPLATE_FILE CONFIGURATION_FILE
Otherwise you call
php vendor/bin/configdiff.php TEMPLATE_FILE CONFIGURATION_FILE