In package nette/utils you will find a set of useful classes for everyday use:

• Arrays - manipulate arrays
• Callback - PHP callbacks
• Date and Time - modify times and dates
• Filesystem - copying, renaming, …
• HTML elements - generate HTML
• Images - crop, resize, rotate images
• JSON - encoding and decoding
• Generating Random Strings
• Pagination - comfort pagination
• Strings - useful text transpilers
• SmartObject - PHP Object Enhancements
• Validation - validate inputs

Documentation can be found on the website.

The recommended way to install is via Composer:

composer require nette/utils

It requires PHP version 5.6 and supports PHP up to 7.2. The dev-master version requires PHP 7.1.