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# ImageColorAllocate

(PHP 3 <= 3.0.18, PHP 4 >= 4.0.0)

ImageColorAllocate -- Allocate a color for an image

## Description

``int imagecolorallocate` (int im, int red, int green, int blue)`

ImageColorAllocate() returns a color identifier representing the color composed of the given RGB components. The `im` argument is the return from the imagecreate() function. `Red`, `green` and blue are the values of the red, green and blue component of the requested color respectively. These parameters are integers between 0 and 255. ImageColorAllocate() must be called to create each color that is to be used in the image represented by `im`.

    $white = ImageColorAllocate ($im, 255, 255, 255);
    $black = ImageColorAllocate ($im, 0, 0, 0);

Returns -1 if the allocation failed.

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