Online PHP editor | output for 6NOca

@ 2013-12-17T11:18:31Z

<?php

function getColor($rgb)
{

$colors = array($BLUE =>0x0a9ef3, $RED => 0xea0a2f, $GREEN => 0x336633);

$largestDiff = 0;
$closestColor = "";
foreach ($colors as $name => $rgbColor)
{
    if (!isset($smallestDiff)) {

        $smallestDiff = colorDiff($rgbColor,$rgb);
        $closestColor = $name;

    } else if (colorDiff($rgbColor,$rgb) < $smallestDiff)
    {
        $smallestDiff = colorDiff($rgbColor,$rgb);
        $closestColor = $name;
    }

}
return $closestColor;

}

function colorDiff($rgb1,$rgb2)
{
// do the math on each tuple

$red1 = hexdec(substr($rgb1,0,2));
$green1 = hexdec(substr($rgb1,2,2));
$blue1 = hexdec(substr($rgb1,4,2));

$red2 = hexdec(substr($rgb2,0,2));
$green2 = hexdec(substr($rgb2,2,2));
$blue2 = hexdec(substr($rgb2,4,2));

return abs($red1 - $red2) + abs($green1 - $green2) + abs($blue1 - $blue2) ;


}

$color = '336633';
$closestmatch = getColor("0x".$color);
echo $closematch;




?>

Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: Warning: Undefined variable $BLUE in /in/6NOca on line 6 Warning: Undefined variable $RED in /in/6NOca on line 6 Warning: Undefined variable $GREEN in /in/6NOca on line 6 Warning: Undefined variable $closematch in /in/6NOca on line 47
Output for 5.0.4 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.25, 7.4.27 - 7.4.33: Notice: Undefined variable: BLUE in /in/6NOca on line 6 Notice: Undefined variable: RED in /in/6NOca on line 6 Notice: Undefined variable: GREEN in /in/6NOca on line 6 Notice: Undefined variable: closematch in /in/6NOca on line 47
Output for 7.3.32 - 7.3.33, 7.4.26
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.3: Notice: Undefined variable: BLUE in /in/6NOca on line 6 Notice: Undefined variable: RED in /in/6NOca on line 6 Notice: Undefined variable: GREEN in /in/6NOca on line 6 Notice: Undefined variable: closematch in /in/6NOca on line 47

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