Symfony Routing optimisation.

compile.php

<?php

use Symfony\Component\Routing\Matcher\Dumper\PhpMatcherDumper;
use Symfony\Component\Routing\Route;
use Symfony\Component\Routing\RouteCollection;

include __DIR__.'/vendor/autoload.php';

if (count($argv) < 2) {
    die('Not enough arguments');
}

$className = $argv[1];
$routesFile = $argv[2] ?? 'routes';
$routes = include __DIR__.'/'. $routesFile .'.php';

$routeCollection = new RouteCollection();

foreach ($routes as $route) {
    $routeCollection->add($route[1], new Route($route[0]));
}

$dumper = new PhpMatcherDumper($routeCollection);

file_put_contents(__DIR__.'/'.$routesFile.'_'.$className.'.php', $dumper->dump(['class' => $className]));

echo sprintf("Dumped routes into %s.php\n", $className);

results.md

In the given small route set

group	avg	max
master	0.81	1.56
pr	0.59	0.92

On a real life project with ~800 routes

group	avg	max
master	4.73	10.26
pr	1.07	2.42

This comparison is done against master which already includes the previous optimisation which brought routing times down from 7ms to 2,5ms.

routes.php

<?php

return [
    ['/nl/', 'root_nl'],
    ['/nl/simple/match', 'simple_match_nl'],
    ['/nl/simple/{regex}', 'regex_match_nl'],
    ['/nl/nested/group/a_match', 'nested_group_a_nl'],
    ['/nl/nested/group/b_match', 'nested_group_b_nl'],
    ['/nl/grouped/a_match/{regex}', 'grouped_a_nl'],
    ['/nl/grouped/b_match', 'grouped_b_nl'],
    ['/nl/grouped/c_match/{regex}', 'grouped_c_nl'],

    ['/en/', 'root_en'],
    ['/en/simple/match', 'simple_match_en'],
    ['/en/simple/{regex}', 'regex_match_en'],
    ['/en/nested/group/a_match', 'nested_group_a_en'],
    ['/en/nested/group/b_match', 'nested_group_b_en'],
    ['/en/grouped/a_match/{regex}', 'grouped_a_en'],
    ['/en/grouped/b_match', 'grouped_b_en'],
    ['/en/grouped/c_match/{regex}', 'grouped_c_en'],

    ['/nl/nested/group/c_match', 'nested_group_c_nl'],
    ['/nl/nested/group/{regex}', 'nested_group_cutpoint_nl'],
    ['/nl/nested/group/a_match', 'nested_group_a_nl'],
    ['/nl/nested/group/b_match/{regex}', 'nested_group_b_nl'],
    ['/nl/nested/group/c_match', 'nested_group_c_nl'],
    ['/nl/grouped/d_match/{regex}', 'grouped_d_nl'],
    ['/nl/grouped/e_match', 'grouped_e_nl'],
    ['/nl/grouped/f_match', 'grouped_f_nl'],

    ['/en/nested/group/c_match', 'nested_group_c_en'],
    ['/en/nested/group/{regex}', 'nested_group_cutpoint_en'],
    ['/en/nested/group/a_match', 'nested_group_a_en'],
    ['/en/nested/group/b_match/{regex}', 'nested_group_b_en'],
    ['/en/nested/group/c_match', 'nested_group_c_en'],
    ['/en/grouped/d_match/{regex}', 'grouped_d_en'],
    ['/en/grouped/e_match', 'grouped_e_en'],
    ['/en/grouped/f_match', 'grouped_f_en'],

    ['/nl/deeper/nested/group/a_match', 'nested_group_a_deeper_nl'],
    ['/nl/deeper/nested/group/b_match/{regex}', 'nested_group_b_deeper_nl'],
    ['/nl/deeper/grouped/a_match', 'grouped_a_deeper_nl'],
    ['/nl/deeper/grouped/b_match/{regex}', 'grouped_b_deeper_nl'],
    ['/nl/deeper/grouped/c_match', 'grouped_c_deeper_nl'],
    ['/nl/deeper/nested/group/c_match', 'nested_group_c_deeper_nl'],
    ['/nl/deeper/nested/{regex}', 'nested_group_cutpoint_deeper_nl'],

    ['/en/deeper/nested/group/a_match', 'nested_group_a_deeper_en'],
    ['/en/deeper/nested/group/b_match/{regex}', 'nested_group_b_deeper_en'],
    ['/en/deeper/grouped/a_match', 'grouped_a_deeper_en'],
    ['/en/deeper/grouped/b_match/{regex}', 'grouped_b_deeper_en'],
    ['/en/deeper/grouped/c_match', 'grouped_c_deeper_en'],
    ['/en/deeper/nested/group/c_match', 'nested_group_c_deeper_en'],
    ['/en/deeper/nested/{regex}', 'nested_group_cutpoint_deeper_en'],

    ['/nl/deeper/nested/group/a_match', 'nested_group_a_deeper_nl'],
    ['/nl/deeper/nested/group/b_match/{regex}', 'nested_group_b_deeper_nl'],
    ['/nl/deeper/nested/group/c_match', 'nested_group_c_deeper_nl'],
    ['/nl/deeper/grouped/d_match', 'grouped_d_deeper_nl'],
    ['/nl/deeper/grouped/e_match/{regex}', 'grouped_e_deeper_nl'],
    ['/nl/deeper/grouped/f_match', 'grouped_f_deeper_nl'],

    ['/en/deeper/nested/group/a_match', 'nested_group_a_deeper_en'],
    ['/en/deeper/nested/group/b_match/{regex}', 'nested_group_b_deeper_en'],
    ['/en/deeper/nested/group/c_match', 'nested_group_c_deeper_en'],
    ['/en/deeper/grouped/d_match', 'grouped_d_deeper_en'],
    ['/en/deeper/grouped/e_match/{regex}', 'grouped_e_deeper_en'],
    ['/en/deeper/grouped/f_match', 'grouped_f_deeper_en'],
];

run.php

<?php

use Symfony\Component\Routing\RequestContext;

include __DIR__.'/vendor/autoload.php';

if (count($argv) < 2) {
    die('Not enough arguments');
}

$className = $argv[1];
$routesFile = $argv[2] ?? 'routes';

$dumperClassFile = __DIR__ . '/' . $routesFile . '_'. $className . '.php';
if ( ! file_exists($dumperClassFile)) {
    die('Matcher not found: '.$className);
}

include $dumperClassFile;
$context = new RequestContext();
$matcher = new $className($context);
$routes = include __DIR__.'/'. $routesFile .'.php';

$times = [];

foreach ($routes as $route) {
    $path = preg_replace('#\{\w+\}#', 'XxX', $route[0]);
    $start = microtime(true);
    for ($i = 0; $i < 50000; ++$i) {
        $matcher->match($path);
    }
    $time = microtime(true) - $start;
    $times[$path] = $time;
    fputcsv(STDERR, [$path, $time], "\t");
}
fputcsv(STDERR, ['avg', array_sum($times)/count($times)], "\t");