Php 多个产品的HTML搜索\u术语

我正在做一个项目，我们需要一个形象，以直接向特定的产品。我们已经选择了提供的产品，我们希望使用搜索词将其指向提供的产品。在HTML中，我们目前使用以下内容：

，但是，我想搜索我们提供的所有产品，即使它们属于不同的类别

// Get search term
if (isset($_GET["search_term"]))
{
    $search_term = htmlspecialchars($_GET["search_term"]);
    $single_search_term = $search_term;

    // Check for errors in search
    if (strlen(trim($single_search_term)) == 0)
    {
        $search_error = TRUE;
        // Assign page details
        $page_title = 'Search Results';
        $meta_title = "Search Results"; 
        $meta_description = "";
        $meta_keywords = "";
        $category_description = "You haven't entered a valid search term, please try again";
    }
    else
    {
        $search_error = FALSE;
        $search_term = explode(" ", $search_term);

        $x = 0;
        // Loop through each search string and add to query
        foreach ($search_term as $value)
        {
            if ($x == 0)
            {
                $search_term = "(Product_Title LIKE '%" . $value . "%')";
                $x++;
            }
            else
            {
                $search_term .= " AND (Product_Title LIKE '%" . $value . "%')";
                $x++;
            }
        }