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<?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 git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught Error: Undefined constant "BLUE" in /in/BnSSa:6 Stack trace: #0 /in/BnSSa(46): getColor('0x336633') #1 {main} thrown in /in/BnSSa on line 6
Process exited with code 255.

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