A simple recursive file looper in order to search for specific contents or to overwrite data

index.php

<?php

/**
 * Example:
 * php index.php /var/www/my_directory_to_search
 */
class Inputter
{
    /** @var string */
    private $searchDirectory;

    /**
     * @param string $searchDirectory
     */
    public function __construct($searchDirectory)
    {
        $this->searchDirectory = $searchDirectory;
    }

    public function run(): void
    {
        $filepaths = $this->getFilepaths();
        foreach ($filepaths as $filepath) {
            // Get file input
            $content = file_get_contents($filepath);

            // @TODO Implement logic here
        }
    }

    /**
     * Get all valid filepaths from search directory
     *
     * @return array
     */
    private function getFilepaths(): array
    {
        $files = [];

        $rii = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($this->searchDirectory));
        foreach ($rii as $file) {
            /** @var SplFileInfo#6 $file */
            if ($file->isDir()) {
                continue;
            }

            $files[] = $file->getPathname();
        }

        return $files;
    }
}

$searchDirectory = $argv[1] ?? '';

if ($searchDirectory) {
    $inputter = new Inputter($searchDirectory);
    $inputter->run();
} else {
    echo "\nERROR: Please provide a path to the search directory.\n\n";
}