Benchmark of TranslationLoader

TranslationLoaderBenchmark.php

<?php
require __DIR__.'/vendor/autoload.php';

$r = new \ReflectionClass('\Symfony\Component\Validator\Validation');
$xlifffile = dirname($r->getFilename()).'/Resources/translations/validators.en.xlf';
$yamlfile = __DIR__.'/validators.en.yml';
$phpfile = __DIR__.'/validators.en.php';
$Loader = new \Symfony\Component\Translation\Loader\XliffFileLoader();
$catalog = $Loader->load($xlifffile, 'en', 'validators');
$message = $catalog->all('validators');
$yaml = \Symfony\Component\Yaml\Yaml::dump($message);
file_put_contents($yamlfile, $yaml);
file_put_contents($phpfile, '<?php'.PHP_EOL.'return '.var_export(\Symfony\Component\Yaml\Yaml::parse($yaml), true).';');

$XliffLoader = '\Symfony\Component\Translation\Loader\XliffFileLoader';
$YamlLoader = '\Symfony\Component\Translation\Loader\YamlFileLoader';
$PhpLoader = '\Symfony\Component\Translation\Loader\PhpFileLoader';

$loaders = [$XliffLoader => $xlifffile, $YamlLoader => $yamlfile, $PhpLoader => $phpfile];
foreach ($loaders as $loader_class => $file) {
    echo $loader_class.PHP_EOL;
    $loader = new $loader_class;
    $start = microtime(true);
    for ($i = 0; $i < 1000; $i++)
        $loader->load($file, 'en', 'validators');
    $end = microtime(true);
    echo '=> '.($end - $start).PHP_EOL;
}

\Symfony\Component\Translation\Loader\XliffFileLoader
=> 6.5419659614563
\Symfony\Component\Translation\Loader\YamlFileLoader
=> 1.1295650005341
\Symfony\Component\Translation\Loader\PhpFileLoader
=> 0.091395854949951