Super RegExp for Shantui

public function actionFindTables()
	{
		$res = [];
		$text = file_get_contents('zl30.html', 'web');
		$rows = preg_split('/=+/', $text);
		foreach ($rows as $row) {
			list($title, $body) = preg_split('/-{5,}/', $row);
			$html = '<h1><br />' . $title . '<br /><br /></h1>';
			$html .= '<table border="1" cellspacing="0" cellpadding="4"><colgroup span="5" width="85">';
			$html .= '<thead><tr><td align="left" height="17">№</td><td align="left">Part No.</td>
			<td align="left">Описание</td><td align="left">Количество</td></tr></thead>';
			$html .= '<tbody>';
			$trs = preg_split('/\n/', $body);
			for ($n = 0; isset($trs[$n]); $n++) {
				if ($trs[$n]) {
					$html .= '<tr>';
					if (preg_match('/\s\|\s/', $trs[$n])) {
						list($first, $sec) = preg_split('/\s\|\s/', $trs[$n]);
						$i = preg_match('/\d+/', $first);
						$html .= '<td align="left" height="17">' . $i . '</td>';
						$html .= '<td align="left">' . substr($first, strlen($i) + 1) . '</td>';
						$quant = preg_match('/\d+$/', $sec);
						$html .= '<td align="left">' . substr($sec, 0, strlen($sec) - strlen($quant) - 1) . '</td>';
						$html .= '<td align="left">' . $quant . '</td>';
					} else {
						print_r($trs[$n]);
						exit;
					}
					$html .= '</tr>';
				}
			}
			$html .= '</tbody></table>';
			$res[] = [
				'table' => $html,
				'title' => $title
			];
		}
		print_r($res);
	}