有没有什么可以获得更多的性能?因为它花了大约8秒。 car_models数据库有超过100,000条记录,汽车数据库有超过20,000条记录,并且fin_car_parts有超过20,000条记录。我可以为那个数据库做类似关键字的事情。但问题是数据库是动态的。我的意思是每天由编辑添加的记录。我不能碰软件的一部分,因为它不是开源的...php mysql和in_array的性能
$news = dbquery("SELECT * FROM " . DB_NEWS . " ORDER BY news_id DESC LIMIT 0,1");
while ($news_data = dbarray($news))
{
echo $news_data['news_subject'];
$news_first_part = str_replace("\\", "", $news_data['news_news']);
$news_first_part = explode('.', $news_first_part); //first phrase
$news_first_part = $news_first_part[0];
$news_second_part = str_replace("\\", "", $news_data['news_extended']);
$find = array();
$keywords = dbquery("SELECT name FROM cars GROUP BY name");
while ($keywords_data = dbarray($keywords))
{
$my_keyword = $keywords_data['name'];
$news_first_part = str_replace($my_keyword, "<a href='keyword.php?keyword=$my_keyword' title='$my_keyword'>$my_keyword</a>", $news_first_part);
$news_second_part = str_replace($my_keyword, "<a href='keyword.php?keyword=$my_keyword' title='$my_keyword'>$my_keyword</a>", $news_second_part);
if ($news_first_part OR $news_second_part AND !in_array($my_keyword, $find,true))
{
array_push($find, $my_keyword);
}
}
$my_keyword="";
$keywords = dbquery("SELECT name FROM car_models GROUP BY name");
while ($keywords_data = dbarray($keywords))
{
$my_keyword = $keywords_data['name'];
if (strlen($my_keyword) > 10 && !in_array($my_keyword, $find, true))
{
$news_first_part = str_replace($my_keyword, "<a href='keyword.php?keyword=$my_keyword' title='$my_keyword'>$my_keyword</a>", $news_first_part);
$news_second_part = str_replace($my_keyword, "<a href='keyword.php?keyword=$my_keyword' title='$my_keyword'>$my_keyword</a>", $news_second_part);
}
}
$keywords = dbquery("SELECT name FROM car_parts GROUP BY name");
while ($keywords_data = dbarray($keywords))
{
$my_keyword = $keywords_data['name'];
if (strlen($my_keyword) > 10)
{
$news_first_part = str_replace($my_keyword, "<a href='keyword.php?keyword=$my_keyword' title='$my_keyword'>$my_keyword</a>", $news_first_part);
$news_second_part = str_replace($my_keyword, "<a href='keyword.php?keyword=$my_keyword' title='$my_keyword'>$my_keyword</a>", $news_second_part);
}
}
$my_keyword="";
echo $news_first_part . '.'; //note I added the final ponctuation
$news_first_part .= ".";
$news_second_part = str_replace($news_first_part, "", $news_second_part);
echo nl2br($news_second_part);
}
你有重复的关键字吗? – Cheery 2012-02-07 20:50:22
是的,因为我需要检查数组 – 2012-02-07 21:08:25