搜索功能多次返回相同的结果

时间:2015-04-14 11:57:46

标签: php arrays search for-loop mysqli

我正在尝试在PHP中创建一个搜索功能,但遇到了一个小问题。当我输入单个搜索词时,我得到预期的结果(列出单个记录,单个搜索结果),但是当我输入2个或更多有效搜索词时,我会多次列出相同的记录。有人可以指出我出错的地方吗?

public function product_search($search_terms)
{
    $search_terms = htmlspecialchars($search_terms);
    $search_terms = stripslashes($search_terms);
    $search_terms_array = explode(" ", $search_terms);
    $terms_count = count($search_terms_array);
    $zerocount = 0;
    for($i = 0; $i < $terms_count; $i++)
    {
        $search_terms_array = trim($search_terms_array[$i]);
        ${"query".$i} = $this->mysqli_link->query("SELECT * FROM sjs_product_list WHERE prod_tags LIKE '%" . $search_terms_array[$i] . "%'");
        if(${"query".$i}->num_rows < 1)
        {
            $zerocount++;
        }
        else
        {
            while($row = ${"query".$i}->fetch_array())
            {
                $rows[] = $row;
            }
            foreach($rows as $row)
            {
                echo "<h3><a href=\"index.php?section=products&amp;subsection=" . $row['prod_category'] . "&amp;prodid=" . $row['prod_id'] . "\">" . $row['prod_name'] . "</h3></a><img src=\"includes/images/product_images/" . $row['prod_category'] . "/" . $row['prod_pic_filename'] . "\" alt=\"\"/><p>Price: " . $row['prod_price'] . "</p><p>" . $row['prod_code'] . "</p>";
            }
        }
    }
    if($zerocount == $terms_count)
    {
        echo "<h3>Your search terms returned 0 results. Please try using different search terms.";
    }
}

2 个答案:

答案 0 :(得分:0)

更改

$search_terms_array = trim($search_terms_array[$i]);

$search_terms_array[$i] = trim($search_terms_array[$i]);

你用第一个元素替换了整个数组。然后,当你在此之后使用$search_terms_array[$i]时,你只是得到了这个字符串的i字符。

另一个问题:每次循环时你都没有清除$rows数组。放:

$rows = array();

之前

while ($row = ${"query".$i}->fetch_array())

您在循环中打印整个$rows数组,因此每次打印上一次迭代中的行时,即使它们已经打印过。

答案 1 :(得分:0)

在代码中替换以下两行: -

<?php 
$search_key = trim($search_terms_array[$i]);
${"query".$i} = $this->mysqli_link->query("SELECT * FROM sjs_product_list WHERE prod_tags LIKE '%" . $search_key  . "%'");
?>