# wordpress-seo/27.9/vendor_prefixed/psr/container/src/ContainerInterface.php

Yoast SEO – Advanced SEO with real-time guidance and built-in AI, version 27.9. 35 lines.

- Page: https://pluginprobe.com/plugins/wordpress-seo/27.9/code/vendor_prefixed/psr/container/src/ContainerInterface.php
- Raw: https://pluginprobe.com/plugins/wordpress-seo/27.9/raw/vendor_prefixed/psr/container/src/ContainerInterface.php
- Modified: 2025-11-18T15:41:52+00:00

Line numbers below start at 1. Link to a line or a range by appending a fragment to the
page URL, for example `https://pluginprobe.com/plugins/wordpress-seo/27.9/code/vendor_prefixed/psr/container/src/ContainerInterface.php#L10-L20`.

```php
<?php

declare (strict_types=1);
namespace YoastSEO_Vendor\Psr\Container;

/**
 * Describes the interface of a container that exposes methods to read its entries.
 */
interface ContainerInterface
{
    /**
     * Finds an entry of the container by its identifier and returns it.
     *
     * @param string $id Identifier of the entry to look for.
     *
     * @throws NotFoundExceptionInterface  No entry was found for **this** identifier.
     * @throws ContainerExceptionInterface Error while retrieving the entry.
     *
     * @return mixed Entry.
     */
    public function get(string $id);
    /**
     * Returns true if the container can return an entry for the given identifier.
     * Returns false otherwise.
     *
     * `has($id)` returning true does not mean that `get($id)` will not throw an exception.
     * It does however mean that `get($id)` will not throw a `NotFoundExceptionInterface`.
     *
     * @param string $id Identifier of the entry to look for.
     *
     * @return bool
     */
    public function has(string $id);
}

```