PHP 5.5.16 is released

imagecolorstotal

(PHP 4, PHP 5)

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

Descrizione

int imagecolorstotal ( resource $image )

Returns the number of colors in an image palette.

Elenco dei parametri

image

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

Valori restituiti

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

Esempi

Example #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);
?>

Il precedente esempio visualizzerĂ  qualcosa simile a:

Total colors in image: 128

Vedere anche:

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