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imagesavealpha()

imagesavealpha - Set the flag to save full alpha channel information (as opposed to single-color transparency) when saving PNG images

Syntax

bool imagesavealpha (resource $image, bool $saveflag)

Arguments

  • image - An image resource, returned by one of the image creation functions, such as imagecreatetruecolor().
  • saveflag - Whether to save the alpha channel or not. Default to FALSE.

Description

imagesavealpha() sets the flag to attempt to save full alpha channel information (as opposed to single-color transparency) when saving PNG images.

Version

PHP 4.3.2, 5

Return value

Returns TRUE on success or FALSE on failure.