public function countColors($max = null)
	{
		if (!imageistruecolor($this->gdResource))
		{
			return imagecolorstotal($this->gdResource);
		}

		$colors = array();
		$width = imagesx($this->gdResource);
		$height = imagesy($this->gdResource);

		for ($x = 0; $x < $width; $x++)
		{
			for ($y = 0; $y < $height; $y++)
			{
				$colors[imagecolorat($this->gdResource, $x, $y)] = true;

				if ($max !== null && \count($colors) > $max)
				{
					break 2;
				}
			}
		}

		return \count($colors);
	}
public function countColors($max = null)
	{
		if (!imageistruecolor($this->gdResource))
		{
			return imagecolorstotal($this->gdResource);
		}

		$colors = array();
		$width = imagesx($this->gdResource);
		$height = imagesy($this->gdResource);

		for ($x = 0; $x < $width; $x++)
		{
			for ($y = 0; $y < $height; $y++)
			{
				$colors[imagecolorat($this->gdResource, $x, $y)] = true;

				if ($max !== null && \count($colors) > $max)
				{
					break 2;
				}
			}
		}

		return \count($colors);
	}
public function countColors ( $ max = null ) { if ( ! imageistruecolor ( $ this -> gdResource ) ) { return imagecolorstotal ( $ this -> gdResource ) ; } $ colors = array ( ) ; $ width = imagesx ( $ this -> gdResource ) ; $ height = imagesy ( $ this -> gdResource ) ; for ( $ x = 0 ; $ x < $ width ; $ x ++ ) { for ( $ y = 0 ; $ y < $ height ; $ y ++ ) { $ colors [ imagecolorat ( $ this -> gdResource , $ x , $ y ) ] = true ; if ( $ max !== null && \ count ( $ colors ) > $ max ) { break 2 ; } } } return \ count ( $ colors ) ; }
Count the number of colors in the image

@param integer $max Stop parsing the image if more colors than $max were found

@return integer The number of image colors
Count the number of colors in the image