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imagecolorexact

Description

The imagecolorexact of Image for PHP get the index of the specified color.

Syntax

imagecolorexact(
    GdImage $image,
    int $red,
    int $green,
    int $blue
): int

Parameters

image

A GdImage object, returned by one of the image creation functions, such as imagecreatetruecolor().

red

Value of red component.

green

Value of green component.

blue

Value of blue component.

Return

Returns the index of the specified color in the palette of the image, or -1 if the color does not exist.

Examples

1 · return

<?

$width = 100;
$height = 100;
$image = imagecreatetruecolor($width, $height);

$red = 255;
$green = 128;
$blue = 0;

$return = imagecolorexact($image, $red, $green, $blue);

echo $return;

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