Rechercher une fonction PHP

imagecolorstotal

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(PHP 4, PHP 5, PHP 7)

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

Description

imagecolorstotal ( resource $image ) : int

Returns the number of colors in an image palette.

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Parameters

image

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

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Return Values

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

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Examples

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);
?>

The above example will output something similar to:

Total colors in image: 128

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See Also

Find a PHP function

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Document created the 30/01/2003, last modified the 26/10/2018
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References

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