imagecolorresolvealpha

(PHP 4 >= 4.0.6, PHP 5)

imagecolorresolvealpha — Get the index of the specified color + alpha or its closest possible alternative

int imagecolorresolvealpha ( resource $image , int $red , int $green , int $blue , int $alpha )

This function is guaranteed to return a color index for a requested color, either the exact color or the closest possible alternative.

image: An image resource, 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
alpha: A value between 0 and 127. 0 indicates completely opaque while 127 indicates completely transparent.

The colors parameters are integers between 0 and 255 or hexadecimals between 0x00 and 0xFF.

Returns a color index.

Замечание: Эта функция нуждается в GD версии 2.0.1 или выше.

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