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imagecolorallocatealpha()

imagecolorallocatealpha - Allocate a color for an image

Syntax

int imagecolorallocatealpha (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

imagecolorallocatealpha() behaves identically to imagecolorallocate() with the addition of the transparency parameter alpha.

Version

PHP 4.3.2, 5

Return value

A color identifier or FALSE if the allocation failed.