Color Invert

From CodeCodex

PHP[edit]

<highlightsyntax>

 function color_inverse($color){
   $color = str_replace('#', , $color);
   if (strlen($color) != 6){ return '000000'; }
   $rgb = ;
   for ($x=0;$x<3;$x++){
       $c = 255 - hexdec(substr($color,(2*$x),2));
       $c = ($c < 0) ? 0 : dechex($c);
       $rgb .= (strlen($c) < 2) ? '0'.$c : $c;
   }
   return '#'.$rgb;

}


</pre>