Find unused translations on Laravel with Tinker By @linktoahref

tinker.php

php artisan tinker
$translations = require resource_path('lang/en/app.php');
$unused_keys = [];

foreach ($translations as $key => $value) {

    // Here app is the name of the translation file
    // that was required in first step.
    // Replace app with the name of the translation file that is been required.

    $out = exec('echo $(grep -rn "app.' . $key . '" . --exclude-dir=vendor)');

    echo strlen($out) . " " . $key . "\n";

    if (strlen($out) <= 0) {
        $unused_keys[] = $key;
    }
}

How do you use these multi lines in Tinker?

Sorry @RobinBastiaan I was traveling. Just add one by one or paste everything together...