1Symfony Polyfill / Php73
2========================
3
4This component provides functions added to PHP 7.3 core:
5
6- [`array_key_first`](https://php.net/array_key_first)
7- [`array_key_last`](https://php.net/array_key_last)
8- [`hrtime`](https://php.net/function.hrtime)
9- [`is_countable`](https://php.net/is_countable)
10- [`JsonException`](https://php.net/JsonException)
11
12More information can be found in the
13[main Polyfill README](https://github.com/symfony/polyfill/blob/main/README.md).
14
15License
16=======
17
18This library is released under the [MIT license](LICENSE).
19