imagecolorstotal
(PHP 4, PHP 5)
imagecolorstotal — Find out the number of colors in an image's palette
說明
int imagecolorstotal
( resource $image
)
Returns the number of colors in an image palette.
參數
- image
-
An image resource, returned by one of the image creation functions, such as imagecreatetruecolor().
Return值
Returns the number of colors in the specified image's palette or 0 for truecolor images.