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Convert HEX to RGB & RGB to HEX

/ Published in: PHP
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  1. <?php
  2. 	function HexToRGB($hex) {
  3. 		$hex = ereg_replace("#", "", $hex);
  4. 		$color = array();
  5.  
  6. 		if(strlen($hex) == 3) {
  7. 			$color['r'] = hexdec(substr($hex, 0, 1) . $r);
  8. 			$color['g'] = hexdec(substr($hex, 1, 1) . $g);
  9. 			$color['b'] = hexdec(substr($hex, 2, 1) . $b);
  10. 		}
  11. 		else if(strlen($hex) == 6) {
  12. 			$color['r'] = hexdec(substr($hex, 0, 2));
  13. 			$color['g'] = hexdec(substr($hex, 2, 2));
  14. 			$color['b'] = hexdec(substr($hex, 4, 2));
  15. 		}
  16.  
  17. 		return $color;
  18. 	}
  19.  
  20. 	function RGBToHex($r, $g, $b) {
  21. 		//String padding bug found and the solution put forth by Pete Williams (http://snipplr.com/users/PeteW)
  22. 		$hex = "#";
  23. 		$hex.= str_pad(dechex($r), 2, "0", STR_PAD_LEFT);
  24. 		$hex.= str_pad(dechex($g), 2, "0", STR_PAD_LEFT);
  25. 		$hex.= str_pad(dechex($b), 2, "0", STR_PAD_LEFT);
  26.  
  27. 		return $hex;
  28. 	}
  29. ?>

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