我想在搜索功能工作后显示当前搜索值

Question

I am creating this for my varsity project. I am not so expert about it. so, I need someone to help me or guide me how to do it. Please see the image below:

When i search with some value putting in input field it goes empty after search. But i want to show current search value after search results show as like as the image below:

The id's of the search fields are: application_number, document_number Can anyone suggest any URL where can i find this solution or write me code for me. I used php and mysql for show the search result. Here is the code if this helps you to understand:

 if(isset($_POST['searchbtn'])):

        $application_number = trim($_POST['application_number']);
        $document_number = trim($_POST['document_number']);


       $sql_search = "SELECT * FROM search_info LEFT JOIN country ON country.`country_id`=`search_info`.`country_id` WHERE search_info.`application_number` = '$application_number' AND search_info.`document_number` = '$document_number' AND search_info.`is_deleted`=0";

        $query = mysqli_query($con,$sql_search);
        $count = mysqli_num_rows($query);
        if($count>0):

       $search_result = mysqli_fetch_array($query);


 ?>

  <tr>
                <td><center><?=$search_result['bill_number']?></center></td>
                  <td><center><?=$search_result['application_number']?></center></td>
                  <td><center><?=$search_result['application_date']?></center></td>
                  <td><center><?=$search_result['document_number']?></center></td>
                  <td><center><?=$search_result['name']?></center></td>
                  <td ><center><?=$search_result['Country_Name']?></center></td>
                  <td><center><?=$search_result['type_pass']?></center></td>
                  <td><center><?=$search_result['time_frame']?></center></td>
                  <td><center><?=$search_result['acquisition_place']?></center></td>
                  <td style="color:<?=$search_result['color']?>"><center><?=$search_result['application_status']?></center></td>

        </tr>
        <?php else:?>
            <tr>
                <td colspan="10">No Record Found</td>
            </tr>
        <?php endif;?>

I think it can be done with jquery or ajax. But i don't know how to do it. My coding skill is beginner level, so please consider it. Thanks

Answer 1

I'm not sure if your project requires security enhancements, but if this should get the job done. It checks that the posted variable exists, if not it sets the variable to empty then it simply echoes that in the input.

<?php
     $document_number = (isset($_POST["document_number"])) ? $_POST["document_number"] : "";
     $application_number = (isset($_POST["application_number"])) ? $_POST["application_number"] : "";
?>
<input type="text" name="application_number" value="<?=$application_number?>">
<input type="text" name="document_number" value="<?=$document_number?>">