spider/lib/doc/Core.php

<?php
namespace Spider\Lib\Doc;
use Dever;

class Core
{
	public static function match($pattern, $string)
	{
		$temp = explode('||', $pattern);
		$index = isset($temp[1]) ? $temp[1] : 1;
		preg_match_all('/' . $temp[0] . '/i', $string, $match);
		$result = $match[$index][0];
		return $result;
	}
}