quickwebp / includes / vendor / intervention / image / src / Intervention / Image / Commands / ChecksumCommand.php

ChecksumCommand.php in QuickWebP – WebP & AVIF Image Optimizer, Compression & SEO for WordPress 3.2.1, at includes/vendor/intervention/image/src/Intervention/Image/Commands/ChecksumCommand.php

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1	<?php
2
3	namespace Intervention\Image\Commands;
4
5	class ChecksumCommand extends AbstractCommand
6	{
7	/**
8	* Calculates checksum of given image
9	*
10	* @param \Intervention\Image\Image $image
11	* @return boolean
12	*/
13	public function execute($image)
14	{
15	$colors = [];
16
17	$size = $image->getSize();
18
19	for ($x=0; $x <= ($size->width-1); $x++) {
20	for ($y=0; $y <= ($size->height-1); $y++) {
21	$colors[] = $image->pickColor($x, $y, 'array');
22	}
23	}
24
25	$this->setOutput(md5(serialize($colors)));
26
27	return true;
28	}
29	}
30