PHP 4, PHP 5, PHP 7, PHP 8
imagecolorstotal - Find out the number of colors in an image's palette
Code Examples

imagecolorstotal( GdImage$image ): int

Returns the number of colors in an image palette.



A GdImage object, returned by one of the image creation functions, such as imagecreatetruecolor.

Return Values

Returns the number of colors in the specified image's palette or 0 for truecolor images.


Version Description
8.0.0 image expects a GdImage instance now; previously, a resource was expected.

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Image Processing and GD Functions

Most used PHP functions