<?php

declare(strict_types=1);

namespace Dotenv\Store\File;

use Dotenv\Exception\InvalidEncodingException;
use Dotenv\Util\Str;
use PhpOption\Option;

/**
 * @internal
 */
final class Reader
{
    /**
     * This class is a singleton.
     *
     * @codeCoverageIgnore
     *
     * @return void
     */
    private function __construct()
    {
        //
    }

    /**
     * Read the file(s), and return their raw content.
     *
     * We provide the file path as the key, and its content as the value. If
     * short circuit mode is enabled, then the returned array with have length
     * at most one. File paths that couldn't be read are omitted entirely.
     *
     * @param string[]    $filePaths
     * @param bool        $shortCircuit
     * @param string|null $fileEncoding
     *
     * @throws \Dotenv\Exception\InvalidEncodingException
     *
     * @return array<string,string>
     */
    public static function read(array $filePaths, bool $shortCircuit = true, string $fileEncoding = null)
    {
        $output = [];

        foreach ($filePaths as $filePath) {
            $content = self::readFromFile($filePath, $fileEncoding);
            if ($content->isDefined()) {
                $output[$filePath] = $content->get();
                if ($shortCircuit) {
                    break;
                }
            }
        }

        return $output;
    }

    /**
     * Read the given file.
     *
     * @param string      $path
     * @param string|null $encoding
     *
     * @throws \Dotenv\Exception\InvalidEncodingException
     *
     * @return \PhpOption\Option<string>
     */
    private static function readFromFile(string $path, string $encoding = null)
    {
        /** @var Option<string> */
        $content = Option::fromValue(@\file_get_contents($path), false);

        return $content->flatMap(static function (string $content) use ($encoding) {
            return Str::utf8($content, $encoding)->mapError(static function (string $error) {
                throw new InvalidEncodingException($error);
            })->success();
        });
    }
}

• [F] Paths.php
  Delete
• [F] Reader.php
  Delete

Blog Section

Discover the Latest in Digital Payments and NFC Technology

Dive into our blog to explore the cutting-edge trends in digital payments and NFC technology. Stay updated on the innovations that are revolutionizing transactions, boosting security, and making payments quicker and more convenient. Learn how these advancements are shaping the future of financial interactions and driving the global transition towards a cashless world.

The Rise of Contactless Payments:...

In recent years, contactless payments have surged in popularity, driven...

Visit Blog

March 27, 2024

Enhancing Payment Security: The Role...

As digital transactions proliferate, ensuring robust payment security is more critical than ever. Two foundational...

Visit Blog

March 27, 2024

The Future of Digital Wallets:...

Digital wallets have fundamentally transformed how we manage money, offering a streamlined, secure, and highly...

Visit Blog

March 27, 2024