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LEARN ABOUT PHP

imagecolorstotal

IMAGECOLORSTOTAL(3)							 1						       IMAGECOLORSTOTAL(3)

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

SYNOPSIS

       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)