Static methods for colors in bash

ColorCLI.php

<?php

class ColorCLI 
{
                static $foreground_colors = 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',
                );
 
                static $background_colors = array(
                        'black'        => '40', 'red'          => '41',
                        'green'        => '42', 'yellow'       => '43',
                        'blue'         => '44', 'magenta'      => '45',
                        'cyan'         => '46', 'light_gray'   => '47',
                );
 
                // Returns colored string
                public static function getColoredString($string, $foreground_color = null, $background_color = null) {
                        $colored_string = "";
 
                        // Check if given foreground color found
                        if ( isset(self::$foreground_colors[$foreground_color]) ) {
                                $colored_string .= "\033[" . self::$foreground_colors[$foreground_color] . "m";
                        }
                        // Check if given background color found
                        if ( isset(self::$background_colors[$background_color]) ) {
                                $colored_string .= "\033[" . self::$background_colors[$background_color] . "m";
                        }
 
                        // Add string and end coloring
                        $colored_string .=  $string . "\033[0m";
 
                        return $colored_string;
                }
 
                // Returns all foreground color names
                public static function getForegroundColors() {
                        return array_keys(self::$foreground_colors);
                }
 
                // Returns all background color names
                public static function getBackgroundColors() {
                        return array_keys(self::$background_colors);
                }
}