Function for converting colors from hexadecimal to RGB.

hex2rgb.php

function hex2rgb($hex)
{
    $hex = str_replace("#", "", $hex);

    if(strlen($hex) === 3) 
    {
        $r = hexdec(substr($hex,0,1).substr($hex,0,1));
        $g = hexdec(substr($hex,1,1).substr($hex,1,1));
        $b = hexdec(substr($hex,2,1).substr($hex,2,1));
    } 
    else 
    {
        $r = hexdec(substr($hex,0,2));
        $g = hexdec(substr($hex,2,2));
        $b = hexdec(substr($hex,4,2));
    }

    $rgb = array($r, $g, $b);

    //return implode(",", $rgb); // returns the rgb values separated by commas
    return $rgb; // returns an array with the rgb values
}