# nette框架所带的常用函数库 >[info] [链接地址，介绍文档中有各常用说明链接](https://packagist.org/packages/nette/utils) 安装 `composer require nette/utils` ## 集成函数 * [Arrays](https://doc.nette.org/arrays)\- manipulate arrays * [Callback](https://doc.nette.org/callback)\- PHP callbacks * [Date and Time](https://doc.nette.org/datetime)\- modify times and dates * [Filesystem](https://doc.nette.org/filesystem)\- copying, renaming, … * [HTML elements](https://doc.nette.org/html-elements)\- generate HTML * [Images](https://doc.nette.org/images)\- crop, resize, rotate images * [JSON](https://doc.nette.org/json)\- encoding and decoding * [Generating Random Strings](https://doc.nette.org/random) * [Pagination](https://doc.nette.org/pagination)\- comfort pagination * [Strings](https://doc.nette.org/strings)\- useful text transpilers * [SmartObject](https://doc.nette.org/smartobject)\- PHP Object Enhancements * [Validation](https://doc.nette.org/validators)\- validate inputs