LazyOpenStream.php

<?php
namespace GuzzleHttp\Psr7;
 
use Psr\Http\Message\StreamInterface;
 
class LazyOpenStream implements StreamInterface
{
    use StreamDecoratorTrait;
 
    private $filename;
 
    private $mode;
 
    public function __construct($filename, $mode)
    {
        $this->filename = $filename;
        $this->mode = $mode;
    }
 
    protected function createStream()
    {
        return stream_for(try_fopen($this->filename, $this->mode));
    }
}