Colors

<?php

namespace CommandLine;

class Colors {

    public static $_backgroundColors = array(
        'black'      => '40',
        'red'        => '41',
        'green'      => '42',
        'yellow'     => '43',
        'blue'       => '44',
        'magenta'    => '45',
        'cyan'       => '46',
        'light_gray' => '47',
    );

    public static $_foregroundColors = array(
        'black'        => '0;30',
        'dark_gray'    => '1;30',
        'blue'         => '0;34',
        'light_blue'   => '1;34',
        'green'        => '0;32',
        'light_green'  => '1;32',
        'cyan'         => '0;36',
        'light_cyan'   => '1;36',
        'red'          => '0;31',
        'light_red'    => '1;31',
        'purple'       => '0;35',
        'light_purple' => '1;35',
        'brown'        => '0;33',
        'yellow'       => '1;33',
        'light_gray'   => '0;37',
        'white'        => '1;37',
    );

    public static function colorize ($string, $foreground = null, $background = null) {
        $colored_string = "";

        // Check if given foreground color exists
        if ($foreground && isset(static::$_foregroundColors[$foreground])) {
            $colored_string .= "\033[" . static::$_foregroundColors[$foreground] . "m";
        }
        // Check if given background color exists
        if ($background && isset(static::$_backgroundColors[$background])) {
            $colored_string .= "\033[" . static::$_backgroundColors[$background] . "m";
        }

        // Add string and end coloring
        $colored_string .=  $string . "\033[0m";

        return $colored_string;
    }

    public static function getForegroundColors () {
        return array_keys(static::$_foregroundColors);
    }

    public static function getBackgroundColors () {
        return array_keys(static::$_backgroundColors);
    }
}