Replace images with Dummy Placeholder Image

imgreplace.php

<?php
/* Keep your images in a folder named 'img' in the same folder where this script resides*/
/* Run the command "php imagereplace.php */
/* ImageMagick PHP extension is required */

function getDirContents($dir, &$results = array()) {
	$files = scandir($dir);

	foreach ($files as $key => $value) {
		$path = realpath($dir . DIRECTORY_SEPARATOR . $value);
		if (!is_dir($path)) {
			$results[] = $path;
		} else if ($value != "." && $value != "..") {
			getDirContents($path, $results);
			$results[] = $path;
		}
	}

	return $results;
}

$images = getDirContents("./imgs");
foreach ($images as $image) {
	if (strpos($image, ".jpg") !== false || strpos($image, ".png") !== false) {
		generateDummyImages($image);
	}
}

/**
 *
 * @param array $files
 * @param string $dataOutPath
 */
function generateDummyImages($filename) {
	$size = getimagesize($filename);
	$width = $size[0];
	$height = $size[1];
	$imageCompressionQuality = 60;

	$draw = new ImagickDraw();

	$draw->pushPattern('typo', 0, 0, $width, $height);

	/* Close the pattern */
	$draw->popPattern();

	$draw->setFillColor(new ImagickPixel("#888888"));

	if ($width > 300) {
		$draw->setFontSize(40);
		$draw->annotation($width / 2 - 90, $height / 2, "{$width} x {$height}");
	} else {
		$draw->setFontSize(20);
		$draw->annotation($width / 2 - 50, $height / 2, "{$width} x {$height}");
	}

	/* Create a new canvas object and a white image */
	$canvas = new Imagick();
	$canvas->newImage($width, $height, new ImagickPixel("#cccccc"));

	/* Draw the ImagickDraw on to the canvas */
	$canvas->drawImage($draw);

	/* 1px black border around the image */

	/* Set the format to PNG */
	if (strpos($filename, "jpg") !== false) {
		$canvas->setImageFormat('jpg');
		$canvas->setImageCompression(Imagick::COMPRESSION_JPEG);
		$canvas->setCompressionQuality($imageCompressionQuality);
	} else if (strpos($filename, "png") !== false) {
		$canvas->setImageFormat('png');
	}

	/* Output the image */
	$canvas->writeimage($filename);
	echo "Image generated: " . $filename . PHP_EOL;
	//}
}