PHP 5.4.36 Released

imagecolorstotal

(PHP 4, PHP 5)

imagecolorstotalFind out the number of colors in an image's palette

Opis

int imagecolorstotal ( resource $image )

Returns the number of colors in an image palette.

Parametry

image

An image resource, returned by one of the image creation functions, such as imagecreatefromgif().

Zwracane wartości

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

Przykłady

Przykład #1 Getting total number of colors in an image using imagecolorstotal()

<?php
// Create image instance
$im imagecreatefromgif('php.gif');

echo 
'Total colors in image: ' imagecolorstotal($im);

// Free image
imagedestroy($im);
?>

Powyższy przykład wyświetli coś podobnego do:

Total colors in image: 128

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