# wordpress-seo/18.3/vendor_prefixed/guzzlehttp/psr7/src/LazyOpenStream.php

Yoast SEO – Advanced SEO with real-time guidance and built-in AI, version 18.3. 38 lines.

- Page: https://pluginprobe.com/plugins/wordpress-seo/18.3/code/vendor_prefixed/guzzlehttp/psr7/src/LazyOpenStream.php
- Raw: https://pluginprobe.com/plugins/wordpress-seo/18.3/raw/vendor_prefixed/guzzlehttp/psr7/src/LazyOpenStream.php
- Modified: 2022-01-11T10:18:10+00:00

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```php
<?php

namespace YoastSEO_Vendor\GuzzleHttp\Psr7;

use YoastSEO_Vendor\Psr\Http\Message\StreamInterface;
/**
 * Lazily reads or writes to a file that is opened only after an IO operation
 * take place on the stream.
 *
 * @final
 */
class LazyOpenStream implements \YoastSEO_Vendor\Psr\Http\Message\StreamInterface
{
    use StreamDecoratorTrait;
    /** @var string File to open */
    private $filename;
    /** @var string */
    private $mode;
    /**
     * @param string $filename File to lazily open
     * @param string $mode     fopen mode to use when opening the stream
     */
    public function __construct($filename, $mode)
    {
        $this->filename = $filename;
        $this->mode = $mode;
    }
    /**
     * Creates the underlying stream lazily when required.
     *
     * @return StreamInterface
     */
    protected function createStream()
    {
        return \YoastSEO_Vendor\GuzzleHttp\Psr7\Utils::streamFor(\YoastSEO_Vendor\GuzzleHttp\Psr7\Utils::tryFopen($this->filename, $this->mode));
    }
}

```