vendor/guzzlehttp/psr7/src/Utils.php

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<?php

declare(strict_types=1);

namespace GuzzleHttp\Psr7;

use Psr\Http\Message\RequestInterface;
use Psr\Http\Message\ServerRequestInterface;
use Psr\Http\Message\StreamInterface;
use Psr\Http\Message\UriInterface;

final class Utils
{
    /**
     * Remove the items given by the keys, case insensitively from the data.
     *
     * @param string[] $keys
     */
    public static function caselessRemove(array $keys, array $data): array
    {
        $result = [];

        foreach ($keys as &$key) {
            $key = strtolower($key);
        }

        foreach ($data as $k => $v) {
            if (!is_string($k) || !in_array(strtolower($k), $keys)) {
                $result[$k] = $v;
            }
        }

        return $result;
    }

    /**
     * Copy the contents of a stream into another stream until the given number
     * of bytes have been read.
     *
     * @param StreamInterface $source Stream to read from
     * @param StreamInterface $dest   Stream to write to
     * @param int             $maxLen Maximum number of bytes to read. Pass -1
     *                                to read the entire stream.
     *
     * @throws \RuntimeException on error.
     */
    public static function copyToStream(StreamInterface $source, StreamInterface $dest, int $maxLen = -1): void
    {
        $bufferSize = 8192;

        if ($maxLen === -1) {
            while (!$source->eof()) {
                if (!$dest->write($source->read($bufferSize))) {
                    break;
                }
            }
        } else {
            $remaining = $maxLen;
            while ($remaining > 0 && !$source->eof()) {
                $buf = $source->read(min($bufferSize, $remaining));