Proyectos de Subversion Moodle

<?php

namespace Kevinrob\GuzzleCache;

/**

 *

 * This object is only meant to provide a callable to `GuzzleHttp\Psr7\PumpStream`.

 *

 * @internal don't use it in your project.

 */

class BodyStore

{

    private $body;

    private $read = 0;

    private $toRead;

    public function __construct(string $body)

    {

        $this->body = $body;

        $this->toRead = mb_strlen($this->body);

    }

    /**

     * @param int $length

     * @return false|string

     */

    public function __invoke(int $length)

    {

        if ($this->toRead <= 0) {

            return false;

        }

        $length = min($length, $this->toRead);

        $body = mb_substr(

            $this->body,

            $this->read,

            $length

        );

        $this->toRead -= $length;

        $this->read += $length;

        return $body;

    }

}