LoveRead.ec parser (PHP)

loveread-parser.php

<?php
/**
 * Book ID on loveread.ec
 * For example, for
 * http://loveread.ec/read_book.php?id=2555&p=1
 * ID is 2555.
 *
 * @param int $id
 */

public function getFromLoveread(int $id) {
	$htmlFirstPage = iconv('windows-1251', 'utf-8', file_get_contents("http://loveread.ec/read_book.php?id=$id&p=1"));
	@preg_match("~&#8230;<a href='read_book.php\?id=$id&p=[0-9]+~", $htmlFirstPage, $pagesCount);
	$pagesCount = ltrim(substr($pagesCount[0], -3), '=');
	if(! is_numeric($pagesCount) || empty($pagesCount)) {
		$pagesCount = ltrim(substr($pagesCount[0], -4), '=');
	}
	if($pagesCount) {
		$patterns = array('~(\<(/?[^>]+)>)~is', '~&#769;~', '~&#039;~', '~&#252;~');

		/* Finding the page title tag */
		preg_match('/<title>(.*?)<\/title>/', $htmlFirstPage, $output);
		$pagetitle = $output[1];

		/* Removing LoveRead.ec message */
		$booktitle = str_replace(' | LoveRead.ec - читать книги онлайн бесплатно', '', $pagetitle);
		/* For some reason, the '|' symbol is not treated correctly when downloading the file, so replacing it with '-' */
		$booktitle = str_replace('|', '-', $booktitle);
		
		/* Finally, downloading the book with its title */
		header('Content-type: application/octet-stream');
		header('Content-Disposition: attachment; filename="' . $booktitle . '.txt"');
		for($p = 1; $p <= $pagesCount; $p++) {
			$url = "http://loveread.ec/read_book.php?id=$id&p=$p";
			$html = file_get_contents($url);
			$html = iconv('windows-1251', 'utf-8', $html);
			preg_match('~<p.*class=MsoNormal>(.*?)</p>~is', $html, $matches);
			$content = preg_replace($patterns, '', $matches[0]);
			echo $content;
		}
		exit(0);
	}
}