How to convert hexa color value to RGB value

hexa-to-rgb.php

<?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
}