foreach ($details as &$row) {

	$content = &$row['content'];
	$images = $row['images'];

	if (preg_match_all('/\IMAGE\|(\d+)/', $content, $matches)) {
		foreach ($matches[1] as $id) {
			foreach ($images as $image) {
				if ($image['id'] == $id) {
					$contentz[] = str_replace('<!--IMAGE|' . $id . '-->', $image['filename'], $row['content']);
				}
			}
		}
	}

}

print_r($contentz);