Pastebin

<?php

$server = 'http://img.onemanga.com/mangas/';

$manga = 171;
$chapter = 1;
$pages = 56;

$mangastr = sprintf("%08d", $manga);
$chapterstr = sprintf("%08d", $chapter);

$dir = "TestChapter $chapter";

if (!is_dir($dir))
	mkdir($dir);

for ($page = 0; $page < $pages; ++$page)
{
	$pagestr = sprintf("%02d", $page);
	$url = "$server/$mangastr/$chapterstr/$pagestr.jpg";
	echo $url, "\n";
	file_put_contents("$dir/" . ($page + 1) . '.jpg', file_get_contents($url));
}