Question

我目前正在使用

    $terms = explode(" ", $k);
    $query = "SELECT * FROM search WHERE ";


    foreach ($terms as $each) {
        $i++;

        if ($i == 1)
            $query .= "keywords = '%$each%' ";
        else
            $query .= "OR keywords LIKE '%$each%' ";
}

    // connect
    mysql_connect("localhost", "root", "password");
    mysql_select_db("search");

    $query = mysql_query($query);
    $numrows = mysql_num_rows ($query);
    if ($numrows > 0) {

        while ($row = mysql_fetch_assoc($query)) {
            $id = $row['id'];
            $title = $row['title'];
            $description = $row['description'];
            $keywords = $row['keywords'];
            $links = $row['link'];

            echo "<h2>$title</h2><p>$description</p>";

        }

    }
    else
        echo "No Search Results have been found for \"<b>$k</b>\"";

    // disconnect
    mysql_close();



?>

我从教程中学到的这段代码开始我的搜索引擎。说实话，我不懂任何PHP，理解这里发生的事情是一场真正的斗争。

如何操作这段代码，以便我搜索＆＃34; Swarthmore College＆＃34;或者＆＃34; Swarthmore＆＃34;，斯沃斯莫尔的结果将出现。我需要确保只输入＆＃34; College＆＃34;或者＆＃34; swar＆＃34;或＆＃34; a＆＃34;不会触发Swarthmore的结果。但我需要像＃34;大学＆＃34;，＆＃34;＆＃34;和＆＃34;＆＃34;芝加哥＆＃34;一起触发大学搜索，如芝加哥大学。＆＃34;它也应该由＆＃34; UChicago等缩写引发。＆＃34;

对不起，如果要问这个问题很多，但我完全迷失了。提前谢谢。

Answer 1

您应该包含elseif clausule。代码是：

if ($numrows == 1) {
    // You dont need to iterate if you want to show only unique result
    $row = mysql_fetch_assoc($query);
    $id = $row['id'];
    $title = $row['title'];
    $description = $row['description'];
    $keywords = $row['keywords'];
    $links = $row['link'];

    echo "<h2>$title</h2><p>$description</p>";
}
elseif ($numrows > 1)
    echo "More than one Search Results have been found for \"<b>$k</b>\". Please be more specific ";
else
    echo "No Search Results have been found for \"<b>$k</b>\"";

使搜索引擎忽略特定关键字

1 个答案: