Online PHP editor | output for Skokj

<?php function swift_rgb2hex($rgb,$hash=true) { if($rgb == NULL){ return 'none'; } if($hash) $hex = '#'; $temp = explode('(',$rgb); if(!is_array($temp) || count($temp)=<1){ return $rgb; } $rgb = $temp[1]; $temp = explode(')',$rgb); $rgb = $temp[0]; $rgb = explode(',',$rgb); $hex .= str_pad(dechex($rgb[0]), 2, "0", STR_PAD_LEFT); $hex .= str_pad(dechex($rgb[1]), 2, "0", STR_PAD_LEFT); $hex .= str_pad(dechex($rgb[2]), 2, "0", STR_PAD_LEFT); return $hex; } echo swift_rgb2hex('rgba(0,0,0)'); echo swift_rgb2hex('boom'); echo swift_rgb2hex('FFFFFF'); echo swift_rgb2hex('rgba(0,0,0)');