CLI helper

A small component to help you output stuff on the command line interface (CLI). I found a lot of information on termsys.demon.co.uk/vtansi.htm. This project adheres to Semantic Versioning.

Usage

Foreground color

The foreground color (= text color) can be changed with the classes ForegroundColor and FG (as abbreviation). You can use the class constants or the static methods to set different colors. There is even a method to use the full rgb spectrum :)

use lfischer\cli\ForegroundColor;
use lfischer\cli\Color\FG;

echo ForegroundColor::BLUE . 'Blue foreground!' . ForegroundColor::RESET . PHP_EOL;
echo ForegroundColor::blue('Blue foreground!') . PHP_EOL;
echo FG::BLUE . 'Blue foreground!' . FG::NONE . PHP_EOL;
echo FG::blue('Blue foreground!') . PHP_EOL;
echo FG::rgb(0, 0, 255) . 'Blue foreground!' . FG::RESET . PHP_EOL;

Background color

The same functionality can be used for the background with the classes BackgroundColor and BG (as abbreviation):

use lfischer\cli\BackgroundColor;
use lfischer\cli\Color\BG;

echo BackgroundColor::BLUE . 'Blue foreground!' . BackgroundColor::RESET . PHP_EOL;
echo BackgroundColor::blue('Blue foreground!') . PHP_EOL;
echo BG::BLUE . 'Blue foreground!' . BG::NONE . PHP_EOL;
echo BG::blue('Blue foreground!') . PHP_EOL;
echo BG::rgb(0, 0, 255) . 'Blue foreground!' . BG::RESET . PHP_EOL;

Output styling

You can also define the style of the output with the Style class.

use lfischer\cli\Style;

echo Style::bold('Bold') . PHP_EOL;
echo Style::underline('Underline') . PHP_EOL;
echo Style::nounderline('No underline') . PHP_EOL;
echo Style::negative('Negative') . PHP_EOL;
echo Style::positive('Positive') . PHP_EOL;

Ask questions interactively

You can make the CLI more interactive by requesting input from the user, with the help of the Input class: $answer = Input::ask('<question>', '<optional default value>');

use lfischer\cli\Input;

$name = Input::ask('What is your name?');
$result = Input::ask('Do you like PHP?', 'yes');

Static code analysis and code style

The code is being statically analyzed with the help of vimeo/psalm. The PSR2 code style will be checked/applied with the help of friendsofphp/php-cs-fixer.

Unit tests thanks to PHP Unit

Starting with version 1.3.0 there are unit tests for the basic usage of colors and styles.