imagecolorstotal - Find out the number of colors in an image's palette

int imagecolorstotal (resource $image) DESCRIPTION
Returns the number of colors in an image palette. PARAMETERS
o $image - An image resource, returned by one of the image creation functions, such as imagecreatefromgif(3). RETURN VALUES
Returns the number of colors in the specified image's palette or 0 for truecolor images. EXAMPLES
Example #1 Getting total number of colors in an image using imagecolorstotal(3) <?php // Create image instance $im = imagecreatefromgif('php.gif'); echo 'Total colors in image: ' . imagecolorstotal($im); // Free image imagedestroy($im); ?> The above example will output something similar to: Total colors in image: 128 SEE ALSO
imagecolorat(3), imagecolorsforindex(3), imageistruecolor(3). PHP Documentation Group IMAGECOLORSTOTAL(3)

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