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imagecolorexact> <imagecolorclosesthwb
Last updated: Fri, 19 Jun 2009

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imagecolordeallocate

(PHP 4, PHP 5)

imagecolordeallocateDe-allocate a color for an image

Descripción

bool imagecolordeallocate ( resource $image , int $color )

De-allocates a color previously allocated with imagecolorallocate() or imagecolorallocatealpha().

Lista de parámetros

image

An image resource, returned by one of the image creation functions, such as imagecreatetruecolor().

color

The color identifier.

Valores retornados

Devuelve TRUE si todo se llevó a cabo correctamente, FALSE en caso de fallo.

Ejemplos

Example #1 Using imagecolordeallocate()

<?php
$white 
imagecolorallocate($im255255255);
imagecolordeallocate($im$white);
?>

Ver también



add a note add a note User Contributed Notes
imagecolordeallocate
janos at since78 dot net
01-Dec-2008 03:59
converting HTML color (like #AAED43) to three RGB values ($r = 170, $g = 237, $b = 67)
<?php
function html2rgb($color)
{
    if (
$color[0] == '#')
       
$color = substr($color, 1);

    if (
strlen($color) == 6)
        list(
$r, $g, $b) = array($color[0].$color[1],
                                
$color[2].$color[3],
                                
$color[4].$color[5]);
    elseif (
strlen($color) == 3)
        list(
$r, $g, $b) = array($color[0].$color[0], $color[1].$color[1], $color[2].$color[2]);
    else
        return
false;

   
$r = hexdec($r); $g = hexdec($g); $b = hexdec($b);

    return array(
$r, $g, $b);
}
?>

converting RGB values to HTML color
<?php
function rgb2html($r, $g=-1, $b=-1)
{
    if (
is_array($r) && sizeof($r) == 3)
        list(
$r, $g, $b) = $r;

   
$r = intval($r); $g = intval($g);
   
$b = intval($b);

   
$r = dechex($r<0?0:($r>255?255:$r));
   
$g = dechex($g<0?0:($g>255?255:$g));
   
$b = dechex($b<0?0:($b>255?255:$b));

   
$color = (strlen($r) < 2?'0':'').$r;
   
$color .= (strlen($g) < 2?'0':'').$g;
   
$color .= (strlen($b) < 2?'0':'').$b;
    return
'#'.$color;
}
?>

imagecolorexact> <imagecolorclosesthwb
Last updated: Fri, 19 Jun 2009
 
 
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