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我已经整理了一个迷你搜索算法，它根据他们输入的内容以及测试正文中的链接数量、垃圾邮件等因素为搜索结果分配分数。

不幸的是，我不知道如何根据这个数字生成的结果来排序结果。关于在分配给它的“分数”上排序 PHP 结果的任何想法？我应该补充一点，这个分数并不保存在数据库中，而是每次都根据用户搜索的内容生成。

好的，所以这会根据使用的搜索词按顺序列出所有结果，我需要它按“TotalScore”排序，但我不知道该怎么做......

这是代码：

$refType = $_GET["ref"];
$setLimit = $_GET["list"];

//CATCH & SECURE THE QUERY
$q = mysql_real_escape_string($_GET["q"]);

//SET LISTING VALUE IF CHOSEN, DEFAULT 10
if(!$setLimit || $setLimit == "0"){
$setLimit = "10";
} else {
$setLimit = $_GET["list"];
}

//GET NUMBER OF WORDS IN QUERY & RETURN ERROR IF MORE THAN 12

$searchTermCount = str_word_count($q);
if($searchTermCount > 12){
$searchLine = "";
$searchList = "Your search contained too many words! Please go back and try again, use less than 12 words to find what you are looking for.";
} else if($q == "" || !$q || $q == " "){
$searchLine = "";
$searchList = "You did not submit a search term! Please go back and enter your city into the search bar!";
} else {

$searchLine = "Your search for " . $q . " found the following results";

//PUT NEW ALGORITHM HERE

$findDetails = mysql_query("SELECT * FROM [TABLENAME] WHERE upper(city) like '%$q%' AND verified='1' OR upper(county) like '%$q' AND verified='1' OR upper(title) like '%$q%' AND verified='1' OR upper(intro) like '%$q%' AND verified='1' OR upper(content) like '%$q%' AND verified='1' ORDER BY datePosted DESC LIMIT $setLimit");
while($row = mysql_fetch_array($findDetails)){
    $adId = $row["id"];
    $adTitle = $row["title"];
    $adIntro = $row["intro"];
    $adCity = $row["city"];
    $adCounty = $row["county"];
    $adVerified = $row["verified"];
    $cutIntro = substr($adIntro, 0, 140);

    $numberOfResults = mysql_num_rows($findDetails);

    $findReviews = mysql_query("SELECT * FROM [TABLENAME2] WHERE adventureID='$adId'");
    $findReviews = mysql_num_rows($findReviews);

    $titleScore = "";
    $introScore = "";
    $contentScore = "";

    //CUT SEARCH TERM
    $qBreak = explode(" ", $q);
    foreach($qBreak as $qWord){ 
    $titleScore = $titleScore+substr_count($adTitle, $qWord);
    $introScore = $introScore+substr_count($adIntro, $qWord);
    $contentScore = $contentScore+substr_count($adContent, $qWord);
    }

    $totalScore = $titleScore+$introScore+$contentScore;

    $searchList .='
    <div style="width: 100%;" class="result' . $totalScore . '">
    ' . $adTitle . '<br />' . $adIntro . '<br /><br />' . $adContent . '
    <br /><br /><br />
    Total Score: ' . $totalScore . '<br />
    Title Score: ' . $titleScore . '<br />
    Intro Score: ' . $introScore . '<br />
    Content Score: ' . $contentScore . '<br /><br />
    </div>
    ';

}

}
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1 回答 1

3

查看usort函数。你为它提供了一个你自己的比较函数，它比较数组的两个元素。编写一个比较数组中两个元素的分数的回调函数应该很容易。

于 2012-05-29T09:31:24.327 回答