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imagecolorresolvealpha()

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

Syntax

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

Arguments

  • 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 0and 127. 0indicates completely opaque while 127indicates completely transparent.

Description

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

Version

PHP 4.0.6, 5

Return value

Returns a color index.