CLI Colors

<?php

    class Colors {
        private $foreground = array();
        private $background = array();

        public function __construct() {
            // Set up shell colors
            $this->foreground_colors['black'] = '0;30';
            $this->foreground_colors['dark_gray'] = '1;30';
            $this->foreground_colors['blue'] = '0;34';
            $this->foreground_colors['light_blue'] = '1;34';
            $this->foreground_colors['green'] = '0;32';
            $this->foreground_colors['light_green'] = '1;32';
            $this->foreground_colors['cyan'] = '0;36';
            $this->foreground_colors['light_cyan'] = '1;36';
            $this->foreground_colors['red'] = '0;31';
            $this->foreground_colors['light_red'] = '1;31';
            $this->foreground_colors['purple'] = '0;35';
            $this->foreground_colors['light_purple'] = '1;35';
            $this->foreground_colors['brown'] = '0;33';
            $this->foreground_colors['yellow'] = '1;33';
            $this->foreground_colors['light_gray'] = '0;37';
            $this->foreground_colors['white'] = '1;37';

            $this->background_colors['black'] = '40';
            $this->background_colors['red'] = '41';
            $this->background_colors['green'] = '42';
            $this->background_colors['yellow'] = '43';
            $this->background_colors['blue'] = '44';
            $this->background_colors['magenta'] = '45';
            $this->background_colors['cyan'] = '46';
            $this->background_colors['light_gray'] = '47';
        }

        // Returns colored string
        public function getColoredString($string, $foreground = null, $background = null) {

            $colored_string = "";

            // Check if given foreground color found
            if (isset($this->foreground_colors[$foreground])) {
                $colored_string .= "\033[" . $this->foreground_colors[$foreground] . "m";
            }

            // Check if given background color found
            if (isset($this->background_colors[$background])) {
                    $colored_string .= "\033[" . $this->background_colors[$background] . "m";
            }

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

        // Returns all foreground color names
        public function getForegroundColors() {
            return array_keys($this->foreground_colors);
        }

        // Returns all background color names
        public function getBackgroundColors() {
            return array_keys($this->background_colors);
        }
    }

    // Usage
    $colors = new Colors();

    echo $colors->getColoredString("SUCCESS!", "white", "green") . "\n";
    echo $colors->getColoredString("SUCCESS!", "white", "green") . "\n";
    echo $colors->getColoredString("SUCCESS!", "white", "green") . "\n";

    echo "\033[01;34mOr we can use colors directly inside echo. \033[0m", "\n";

?>