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0.1.0 2017-09-11 07:39 UTC

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Last update: 2024-02-14 08:01:27 UTC


A library for simple metrics (page, database) capture in PHP.


Include openclerk/metrics as a requirement in your project composer.json, and run composer update to install it into your project:

  "require": {
    "openclerk/metrics": "dev-master"

Make sure that you run all of the migrations that can be discovered through component-discovery; see the documentation on openclerk/db for more information.

$migrations = new AllMigrations(db());
if ($migrations->hasPending(db())) {
  $migrations->install(db(), $logger);


  1. Capture runtime metrics of pages and databases (through openclerk/db)
  2. Capture runtime metrics of templates (through openclerk/pages)
  3. Optionally store runtime metrics into the database (requires migrations through component-discovery)
  4. Optionally generate performance reports (requires openclerk/jobs)


This project uses openclerk/db for database management, openclerk/events for capturing and processing events, and openclerk/config for config management.

Configure the component if necessary:

  // these are default values
  "metrics_enabled" => true,
  "metrics_db_enabled" => true,
  "metrics_page_enabled" => true,
  "metrics_templates_enabled" => true,

  // store reports into the database
  "metrics_store" => false,

You now need to register the metrics events handlers, and trigger the page events as necessary:

// set up metrics

// trigger page load metrics
Openclerk\Events::trigger('page_init', null);

// when rendering a page...
Openclerk\Events::trigger('page_start', null);
// do things
Openclerk\Events::trigger('page_end', null);

// print out metrics stats


  1. Tests
  2. CURL report jobs
  3. How to extend your metrics capture (e.g. graphs metrics)