Class to generate colored strings on terminal.

colors.php

<?php
 
class Colors {
private $foreground_colors = array();
private $background_colors = 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_color = null, $background_color = null) {
$colored_string = "";
 
// Check if given foreground color found
if (isset($this->foreground_colors[$foreground_color])) {
$colored_string .= "\033[" . $this->foreground_colors[$foreground_color] . "m";
}
// Check if given background color found
if (isset($this->background_colors[$background_color])) {
$colored_string .= "\033[" . $this->background_colors[$background_color] . "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);
}
}
 
?>