3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?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 5.0.4 - 7.1.0
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 4.3.0 - 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