A faster way to get HTML color values:
function rgb2html($r, $g, $b){
$r = sprintf('%02x',$r);
$g = sprintf('%02x',$g);
$b = sprintf('%02x',$b);
return '#'.$r.$g.$b;
}
imagecolordeallocate
(PHP 4, PHP 5, PHP 7)
imagecolordeallocate — De-allocate a color for an image
설명
bool imagecolordeallocate
( resource
$image
, int $color
)De-allocates a color previously allocated with imagecolorallocate() or imagecolorallocatealpha().
반환값
성공 시 TRUE를, 실패 시 FALSE를 반환합니다.
예제
Example #1 Using imagecolordeallocate()
<?php
$white = imagecolorallocate($im, 255, 255, 255);
imagecolordeallocate($im, $white);
?>
참고
- imagecolorallocate() - Allocate a color for an image
- imagecolorallocatealpha() - Allocate a color for an image
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