从php中的matchig数据中匹配打印以下关键字后，上传csv并匹配数据

Question

我正在尝试上传一个CSV文件，该文件中存在我要与该号码匹配的序列号，然后使用PHP从该匹配号中找到一些关键字作为数据库搜索？请更正我的代码以搜索该关键字我不知道我的代码如何工作？请建议使用preg_match方法来查找“皇室魔王”之类的关键字。

//import.php
    echo "<pre>";
    //print_r($_POST);die();
    $keyword = $_POST['keyword'];
    $csvname = $_POST['csv_file'];


    $row = 0;
    if (($handle = fopen("idata.csv", "r")) !== FALSE) {
        while (($data = fgetcsv($handle, 1000, ",")) !== FALSE) {
            $num = count($data);
            // echo "<p> $num fields in line $row: <br /></p>\n";
            $row++;
            for ($c=0; $c < $num; $c++) {
                echo $data[$c] . "<br />\n";
                $query = "SELECT * FROM wm_article WHERE id = '".$data[$c]."'";
                $exec = mysqli_query($conn, $query);
                $details = mysqli_fetch_array($exec);
                $description = $details['title'] ." ".$details['description'];
                 echo $description ;
                 $aKeyword = explode(" ", $_POST['keyword']);

                 $query ="SELECT * FROM wm_article WHERE description like '%" . $aKeyword[0] . "%'";
       for($i = 1; $i < count($aKeyword); $i++) {
        if(!empty($aKeyword[$i])) {
            $query .= " OR wm_article like '%" . $aKeyword[$i] . "%'";
        }
       }
    $result = $db->query($query);


            }
        }
        fclose($handle);
    }
    ?>