An improvement a day keeps the doctor away

Via composer:

composer require --dev "alsvanzelf/debugtoolbar:dev-master"

• Copy demo/dist/ to a directory in your own application and serve it via the web.
• Copy demo/debug-display.php to a directory in your own application and serve it via the web.
• Setup a logger (i.e. Monolog) storing the results in a database.
• Adjust your application's page rendering in between rendering and sending it to the browser:
  • to track data of the request: $logId = Log::track($logger),
  • and add the toggler to the rendered body: (new Toggler($logId))->render().
• Optionally pass a $scriptUrl and $displayUrl to the Toggler's constructor with the urls of the dist directory and debug-display.php copied before.
• Adjust the debug-display.php to fetch the data from the database used by the logger.
• When using PDO: call PDOPart::trackExecutedStatement($statement, $binds) after executing a PDO statement.
• When using Twig: setup it's profiler and call TwigPart::trackProfiler($profiler).