Php 如何回显上次上载文件的名称

Php 如何回显上次上载文件的名称,php,sql,html,echo,Php,Sql,Html,Echo,我被要求在输出文件中只输出最后一个上传文件的人的姓名和id。困惑是吧?就连我也感到困惑。让我举个例子 假设你有3名员工在你的公司注册。让我们给他们打电话 皮卡丘 雷楚和 比丘 Pikachu在公司上传了3个文件,Raichu上传了2个文件,Pichu也上传了2个文件。文件还必须根据employeename(ASC)和filename(DESC)排序。我的已经被订购了。这是我唯一的问题。在这种情况下,输出应如下所示: if ($_SESSION[$fgmembersite->GetLogin

我被要求在输出文件中只输出最后一个上传文件的人的姓名和id。困惑是吧?就连我也感到困惑。让我举个例子

假设你有3名员工在你的公司注册。让我们给他们打电话

  • 皮卡丘
  • 雷楚和
  • 比丘 Pikachu在公司上传了3个文件,Raichu上传了2个文件,Pichu也上传了2个文件。文件还必须根据employeename(ASC)和filename(DESC)排序。我的已经被订购了。这是我唯一的问题。在这种情况下,输出应如下所示:

    if ($_SESSION[$fgmembersite->GetLoginSessionVar()] == 'sa' 
       OR $_SESSION[$fgmembersite->GetLoginSessionVar()] == 'admin')
    {                                   
    
      $sql= "select * from gmdc_employee 
             where employee_name like '%$search%' 
             AND employee_name like '$listname%'";
    } else {
      $sql = "select b.* from gmdc_user a, gmdc_employee b 
              where a.username = '".$_SESSION[$fgmembersite->GetLoginSessionVar()]."' 
              AND a.company_id = b.company_id 
              AND b.employee_name like '$listname%' 
              AND b.employee_name like '%$search%'"; 
    }
    $query = mysql_query("$sql ORDER BY employee_name,confirmation DESC 
                         ,file_id DESC,file_date DESC 
                          LIMIT $offset,$limit") or die ( mysql_error () );
    $result = mysql_query($sql) or die (mysql_error());
    $total = mysql_num_rows($result);
    
    if(!$result || mysql_num_rows($result) <= 0)
    {
      $fgmembersite->HandleError("No file found.");
      return false;
    }
    while ($row = mysql_fetch_assoc($query))
    {
      $file_id = $row['file_id'];
      $file_desc = $row['file_description'];
      $file_date = $row['file_date'];
      $file_name = $row['file_name'];
      $file_accs = $row['folder_access'];
      $file_employee  = $row['employee_id'];
      $file_confir = $row['confirmation'];
      $file_ename = ucwords($row['employee_name']);
    
      $info = pathinfo($file_name);
      $file_ext = $info['extension'];
    
      echo '<tr><td>&nbsp;</td></tr>
            <tr class="subone"><td class="sub" width="100">'.$file_employee.'<br />
            &nbsp;</td>';
      if($_SESSION[$fgmembersite->GetLoginSessionVar()] == 'sa')
      {
        ?>
        <td class="sub" width="100">
        <a href="" onclick = javascript:newPopup('addfile.php?emp=
        <?php echo $file_employee ?>');><?php echo$file_ename?></a>
        <br />&nbsp;</td>
        <?php
      } else {
        echo '<td class="sub" width="182">'.$file_ename.'<br />&nbsp;</td>';
      }
      echo'<td  class="sub" width="218">
           <a href="'.$file_accs.$file_name.'" target="_blank" 
            style="text-decoration: underline;">'.$file_desc.'</a>
           <br />&nbsp;</td><td  class="sub" width="100">
          '.date('M d, Y',mktime(0,0,0,substr($file_date,5,2)
           ,substr($file_date,8,2),substr($file_date,0,4))).'
           <br />&nbsp;</td><td  class="sub" width="100">'.$file_confir.'
           <br />&nbsp;</td>';
    
      if($_SESSION[$fgmembersite->GetLoginSessionVar()] == 'sa')
      {
        if($file_confir == 'Pending' OR $file_confir == 'NotApproved')
        {
          if(isset($_GET['id']))
          {
            $fgmembersite->Delete_Db($_GET['id']);
          }
          echo '<td  class="sub" width="100">
                <a href="index.php?id='.$file_id.'">Delete</a>
                <br />&nbsp;</td>';
        }
      }
      else if($_SESSION[$fgmembersite->GetLoginSessionVar()] == 'admin')
      {
        if($file_confir == 'Pending')
          {
            if(isset($_GET['yes']))
            {
              $fgmembersite->UpdateYesDB($_GET['yes']);
              //echo "<script>location.reload();</script>";
            }
            else if(isset($_GET['no']))
            {
              $fgmembersite->UpdateNoDB($_GET['no']);
              //echo "<script>location.reload();</script>";
            }
            if (!isset($_GET['offset'])) {
              $prevoffset = 0;
            } else {
              $prevoffset = $_GET['offset'];
              echo'<td  class="sub" width="100">
              <a href="index.php?offset='.$prevoffset.'&searchfile='.$search.'
               &namelist='.$listname.'&yes='.$file_id.'">Approve</a>
               //there's a link here<br /><br />
               <a href="index.php?offset='.$prevoffset.'&searchfile='.$search.'
                &namelist='.$listname.'&no='.$file_id.'">NotApprove</a>
                //there's a link here
                &nbsp;</td> ';
          }
        }
      }?>
    
    employee_id  +   employee_name  +  file_name
    3            |   pichu          |  file6
    3            |   pichu          |  file1
    1            |   pikachu        |  file7
    1            |   pikachu        |  file4
    1            |   pikachi        |  file3
    2            |   raichu         |  file8
    2            |   raichu         |  file5
    2            |   raichu         |  file2
    
    ***OUTPUT***
    
    **employee_id        employee_name              file_name**
        3                      pichu                        file6
                                                            file1
        1                     pikachu                       file7
                                                            file4
                                                            file3
        2                     raichu                        file5
                                                            file2
    
    *注意,员工姓名和员工id在上次上传的文件中??有人知道怎么做吗?拜托,我求求你们帮我这个任务太难了,我只是个新手

    我想在这里用两张桌子。表1给出了员工id和员工姓名,表2给出了文件名,等等。所以我猜这也会涉及到2 while子句。我有这个想法,但我不知道如何把它们都混在一起

    我的代码在编辑之前就像vincent爵士一样如下所示:

    if ($_SESSION[$fgmembersite->GetLoginSessionVar()] == 'sa' 
       OR $_SESSION[$fgmembersite->GetLoginSessionVar()] == 'admin')
    {                                   
    
      $sql= "select * from gmdc_employee 
             where employee_name like '%$search%' 
             AND employee_name like '$listname%'";
    } else {
      $sql = "select b.* from gmdc_user a, gmdc_employee b 
              where a.username = '".$_SESSION[$fgmembersite->GetLoginSessionVar()]."' 
              AND a.company_id = b.company_id 
              AND b.employee_name like '$listname%' 
              AND b.employee_name like '%$search%'"; 
    }
    $query = mysql_query("$sql ORDER BY employee_name,confirmation DESC 
                         ,file_id DESC,file_date DESC 
                          LIMIT $offset,$limit") or die ( mysql_error () );
    $result = mysql_query($sql) or die (mysql_error());
    $total = mysql_num_rows($result);
    
    if(!$result || mysql_num_rows($result) <= 0)
    {
      $fgmembersite->HandleError("No file found.");
      return false;
    }
    while ($row = mysql_fetch_assoc($query))
    {
      $file_id = $row['file_id'];
      $file_desc = $row['file_description'];
      $file_date = $row['file_date'];
      $file_name = $row['file_name'];
      $file_accs = $row['folder_access'];
      $file_employee  = $row['employee_id'];
      $file_confir = $row['confirmation'];
      $file_ename = ucwords($row['employee_name']);
    
      $info = pathinfo($file_name);
      $file_ext = $info['extension'];
    
      echo '<tr><td>&nbsp;</td></tr>
            <tr class="subone"><td class="sub" width="100">'.$file_employee.'<br />
            &nbsp;</td>';
      if($_SESSION[$fgmembersite->GetLoginSessionVar()] == 'sa')
      {
        ?>
        <td class="sub" width="100">
        <a href="" onclick = javascript:newPopup('addfile.php?emp=
        <?php echo $file_employee ?>');><?php echo$file_ename?></a>
        <br />&nbsp;</td>
        <?php
      } else {
        echo '<td class="sub" width="182">'.$file_ename.'<br />&nbsp;</td>';
      }
      echo'<td  class="sub" width="218">
           <a href="'.$file_accs.$file_name.'" target="_blank" 
            style="text-decoration: underline;">'.$file_desc.'</a>
           <br />&nbsp;</td><td  class="sub" width="100">
          '.date('M d, Y',mktime(0,0,0,substr($file_date,5,2)
           ,substr($file_date,8,2),substr($file_date,0,4))).'
           <br />&nbsp;</td><td  class="sub" width="100">'.$file_confir.'
           <br />&nbsp;</td>';
    
      if($_SESSION[$fgmembersite->GetLoginSessionVar()] == 'sa')
      {
        if($file_confir == 'Pending' OR $file_confir == 'NotApproved')
        {
          if(isset($_GET['id']))
          {
            $fgmembersite->Delete_Db($_GET['id']);
          }
          echo '<td  class="sub" width="100">
                <a href="index.php?id='.$file_id.'">Delete</a>
                <br />&nbsp;</td>';
        }
      }
      else if($_SESSION[$fgmembersite->GetLoginSessionVar()] == 'admin')
      {
        if($file_confir == 'Pending')
          {
            if(isset($_GET['yes']))
            {
              $fgmembersite->UpdateYesDB($_GET['yes']);
              //echo "<script>location.reload();</script>";
            }
            else if(isset($_GET['no']))
            {
              $fgmembersite->UpdateNoDB($_GET['no']);
              //echo "<script>location.reload();</script>";
            }
            if (!isset($_GET['offset'])) {
              $prevoffset = 0;
            } else {
              $prevoffset = $_GET['offset'];
              echo'<td  class="sub" width="100">
              <a href="index.php?offset='.$prevoffset.'&searchfile='.$search.'
               &namelist='.$listname.'&yes='.$file_id.'">Approve</a>
               //there's a link here<br /><br />
               <a href="index.php?offset='.$prevoffset.'&searchfile='.$search.'
                &namelist='.$listname.'&no='.$file_id.'">NotApprove</a>
                //there's a link here
                &nbsp;</td> ';
          }
        }
      }?>
    
    employee_id  +   employee_name  +  file_name
    3            |   pichu          |  file6
    3            |   pichu          |  file1
    1            |   pikachu        |  file7
    1            |   pikachu        |  file4
    1            |   pikachi        |  file3
    2            |   raichu         |  file8
    2            |   raichu         |  file5
    2            |   raichu         |  file2
    
    ***OUTPUT***
    
    **employee_id        employee_name              file_name**
        3                      pichu                        file6
                                                            file1
        1                     pikachu                       file7
                                                            file4
                                                            file3
        2                     raichu                        file5
                                                            file2
    
    我希望我的输出是这样的:

    if ($_SESSION[$fgmembersite->GetLoginSessionVar()] == 'sa' 
       OR $_SESSION[$fgmembersite->GetLoginSessionVar()] == 'admin')
    {                                   
    
      $sql= "select * from gmdc_employee 
             where employee_name like '%$search%' 
             AND employee_name like '$listname%'";
    } else {
      $sql = "select b.* from gmdc_user a, gmdc_employee b 
              where a.username = '".$_SESSION[$fgmembersite->GetLoginSessionVar()]."' 
              AND a.company_id = b.company_id 
              AND b.employee_name like '$listname%' 
              AND b.employee_name like '%$search%'"; 
    }
    $query = mysql_query("$sql ORDER BY employee_name,confirmation DESC 
                         ,file_id DESC,file_date DESC 
                          LIMIT $offset,$limit") or die ( mysql_error () );
    $result = mysql_query($sql) or die (mysql_error());
    $total = mysql_num_rows($result);
    
    if(!$result || mysql_num_rows($result) <= 0)
    {
      $fgmembersite->HandleError("No file found.");
      return false;
    }
    while ($row = mysql_fetch_assoc($query))
    {
      $file_id = $row['file_id'];
      $file_desc = $row['file_description'];
      $file_date = $row['file_date'];
      $file_name = $row['file_name'];
      $file_accs = $row['folder_access'];
      $file_employee  = $row['employee_id'];
      $file_confir = $row['confirmation'];
      $file_ename = ucwords($row['employee_name']);
    
      $info = pathinfo($file_name);
      $file_ext = $info['extension'];
    
      echo '<tr><td>&nbsp;</td></tr>
            <tr class="subone"><td class="sub" width="100">'.$file_employee.'<br />
            &nbsp;</td>';
      if($_SESSION[$fgmembersite->GetLoginSessionVar()] == 'sa')
      {
        ?>
        <td class="sub" width="100">
        <a href="" onclick = javascript:newPopup('addfile.php?emp=
        <?php echo $file_employee ?>');><?php echo$file_ename?></a>
        <br />&nbsp;</td>
        <?php
      } else {
        echo '<td class="sub" width="182">'.$file_ename.'<br />&nbsp;</td>';
      }
      echo'<td  class="sub" width="218">
           <a href="'.$file_accs.$file_name.'" target="_blank" 
            style="text-decoration: underline;">'.$file_desc.'</a>
           <br />&nbsp;</td><td  class="sub" width="100">
          '.date('M d, Y',mktime(0,0,0,substr($file_date,5,2)
           ,substr($file_date,8,2),substr($file_date,0,4))).'
           <br />&nbsp;</td><td  class="sub" width="100">'.$file_confir.'
           <br />&nbsp;</td>';
    
      if($_SESSION[$fgmembersite->GetLoginSessionVar()] == 'sa')
      {
        if($file_confir == 'Pending' OR $file_confir == 'NotApproved')
        {
          if(isset($_GET['id']))
          {
            $fgmembersite->Delete_Db($_GET['id']);
          }
          echo '<td  class="sub" width="100">
                <a href="index.php?id='.$file_id.'">Delete</a>
                <br />&nbsp;</td>';
        }
      }
      else if($_SESSION[$fgmembersite->GetLoginSessionVar()] == 'admin')
      {
        if($file_confir == 'Pending')
          {
            if(isset($_GET['yes']))
            {
              $fgmembersite->UpdateYesDB($_GET['yes']);
              //echo "<script>location.reload();</script>";
            }
            else if(isset($_GET['no']))
            {
              $fgmembersite->UpdateNoDB($_GET['no']);
              //echo "<script>location.reload();</script>";
            }
            if (!isset($_GET['offset'])) {
              $prevoffset = 0;
            } else {
              $prevoffset = $_GET['offset'];
              echo'<td  class="sub" width="100">
              <a href="index.php?offset='.$prevoffset.'&searchfile='.$search.'
               &namelist='.$listname.'&yes='.$file_id.'">Approve</a>
               //there's a link here<br /><br />
               <a href="index.php?offset='.$prevoffset.'&searchfile='.$search.'
                &namelist='.$listname.'&no='.$file_id.'">NotApprove</a>
                //there's a link here
                &nbsp;</td> ';
          }
        }
      }?>
    
    employee_id  +   employee_name  +  file_name
    3            |   pichu          |  file6
    3            |   pichu          |  file1
    1            |   pikachu        |  file7
    1            |   pikachu        |  file4
    1            |   pikachi        |  file3
    2            |   raichu         |  file8
    2            |   raichu         |  file5
    2            |   raichu         |  file2
    
    ***OUTPUT***
    
    **employee_id        employee_name              file_name**
        3                      pichu                        file6
                                                            file1
        1                     pikachu                       file7
                                                            file4
                                                            file3
        2                     raichu                        file5
                                                            file2
    
    例如,raichu上载了另一个文件,输出现在应该如下所示:

    if ($_SESSION[$fgmembersite->GetLoginSessionVar()] == 'sa' 
       OR $_SESSION[$fgmembersite->GetLoginSessionVar()] == 'admin')
    {                                   
    
      $sql= "select * from gmdc_employee 
             where employee_name like '%$search%' 
             AND employee_name like '$listname%'";
    } else {
      $sql = "select b.* from gmdc_user a, gmdc_employee b 
              where a.username = '".$_SESSION[$fgmembersite->GetLoginSessionVar()]."' 
              AND a.company_id = b.company_id 
              AND b.employee_name like '$listname%' 
              AND b.employee_name like '%$search%'"; 
    }
    $query = mysql_query("$sql ORDER BY employee_name,confirmation DESC 
                         ,file_id DESC,file_date DESC 
                          LIMIT $offset,$limit") or die ( mysql_error () );
    $result = mysql_query($sql) or die (mysql_error());
    $total = mysql_num_rows($result);
    
    if(!$result || mysql_num_rows($result) <= 0)
    {
      $fgmembersite->HandleError("No file found.");
      return false;
    }
    while ($row = mysql_fetch_assoc($query))
    {
      $file_id = $row['file_id'];
      $file_desc = $row['file_description'];
      $file_date = $row['file_date'];
      $file_name = $row['file_name'];
      $file_accs = $row['folder_access'];
      $file_employee  = $row['employee_id'];
      $file_confir = $row['confirmation'];
      $file_ename = ucwords($row['employee_name']);
    
      $info = pathinfo($file_name);
      $file_ext = $info['extension'];
    
      echo '<tr><td>&nbsp;</td></tr>
            <tr class="subone"><td class="sub" width="100">'.$file_employee.'<br />
            &nbsp;</td>';
      if($_SESSION[$fgmembersite->GetLoginSessionVar()] == 'sa')
      {
        ?>
        <td class="sub" width="100">
        <a href="" onclick = javascript:newPopup('addfile.php?emp=
        <?php echo $file_employee ?>');><?php echo$file_ename?></a>
        <br />&nbsp;</td>
        <?php
      } else {
        echo '<td class="sub" width="182">'.$file_ename.'<br />&nbsp;</td>';
      }
      echo'<td  class="sub" width="218">
           <a href="'.$file_accs.$file_name.'" target="_blank" 
            style="text-decoration: underline;">'.$file_desc.'</a>
           <br />&nbsp;</td><td  class="sub" width="100">
          '.date('M d, Y',mktime(0,0,0,substr($file_date,5,2)
           ,substr($file_date,8,2),substr($file_date,0,4))).'
           <br />&nbsp;</td><td  class="sub" width="100">'.$file_confir.'
           <br />&nbsp;</td>';
    
      if($_SESSION[$fgmembersite->GetLoginSessionVar()] == 'sa')
      {
        if($file_confir == 'Pending' OR $file_confir == 'NotApproved')
        {
          if(isset($_GET['id']))
          {
            $fgmembersite->Delete_Db($_GET['id']);
          }
          echo '<td  class="sub" width="100">
                <a href="index.php?id='.$file_id.'">Delete</a>
                <br />&nbsp;</td>';
        }
      }
      else if($_SESSION[$fgmembersite->GetLoginSessionVar()] == 'admin')
      {
        if($file_confir == 'Pending')
          {
            if(isset($_GET['yes']))
            {
              $fgmembersite->UpdateYesDB($_GET['yes']);
              //echo "<script>location.reload();</script>";
            }
            else if(isset($_GET['no']))
            {
              $fgmembersite->UpdateNoDB($_GET['no']);
              //echo "<script>location.reload();</script>";
            }
            if (!isset($_GET['offset'])) {
              $prevoffset = 0;
            } else {
              $prevoffset = $_GET['offset'];
              echo'<td  class="sub" width="100">
              <a href="index.php?offset='.$prevoffset.'&searchfile='.$search.'
               &namelist='.$listname.'&yes='.$file_id.'">Approve</a>
               //there's a link here<br /><br />
               <a href="index.php?offset='.$prevoffset.'&searchfile='.$search.'
                &namelist='.$listname.'&no='.$file_id.'">NotApprove</a>
                //there's a link here
                &nbsp;</td> ';
          }
        }
      }?>
    
    employee_id  +   employee_name  +  file_name
    3            |   pichu          |  file6
    3            |   pichu          |  file1
    1            |   pikachu        |  file7
    1            |   pikachu        |  file4
    1            |   pikachi        |  file3
    2            |   raichu         |  file8
    2            |   raichu         |  file5
    2            |   raichu         |  file2
    
    ***OUTPUT***
    
    **employee_id        employee_name              file_name**
        3                      pichu                        file6
                                                            file1
        1                     pikachu                       file7
                                                            file4
                                                            file3
        2                     raichu                        file5
                                                            file2
    
    输出


    听起来没那么难

    员工

    此表可能有两个字段(以最简单的方式):employee\u id、employee\u name

    文件

    此表可能有三个字段:文件id、员工id(这是外键)、文件名

    上传文件时,将其名称更改为以下格式:“文件”+文件id

    为此,我们:

    员工

    employee_id | employee_name ----------------------------- 1 | pikachu 2 | raichu 3 | pichu
    那真的很容易编造出来,你觉得呢?

    听起来没那么难

    员工

    此表可能有两个字段(以最简单的方式):employee\u id、employee\u name

    文件

    此表可能有三个字段:文件id、员工id(这是外键)、文件名

    上传文件时,将其名称更改为以下格式:“文件”+文件id

    为此,我们:

    员工

    employee_id | employee_name ----------------------------- 1 | pikachu 2 | raichu 3 | pichu
    然后很容易将它们全部组合起来,您觉得如何?

    假设您使用MySQL,并且假设我们使用引用$db建立了数据库连接:

    $query = 'SELECT employee_id, employee_name FROM `employee` ORDER BY employee_name ASC';
    $result = mysql_query($query) or die(mysql_error($db));
    
    echo '<table>';
    echo '<tr><th>employee_id</th><th>employee_name</th><th>file_name</th></tr>';
    
    while ($row = mysql_fetch_assoc($result)) {
        echo '<tr>';
        echo '<td>'.$row['employee_id'].'<td>';
        echo '<td>'.$row['employee_name'].'</td>';
        echo '<td>';
    
        $query2 = 'SELECT file_name FROM `file` WHERE employee_id='.$row['employee_id'].' ORDER BY file_id DESC';
        $result2 = mysql_query($query2) or die(mysql_error($db));
    
        while ($row2 = mysql_fetch_assoc($result2)) {
            echo $row2['file_name'].'<br />';
        }
    
        echo '</td>';
        echo '</tr>';
    }
    
    echo '</table>';
    
    $query='根据员工姓名ASC从'employee'订单中选择员工id、员工姓名';
    $result=mysql\u query($query)或die(mysql\u error($db));
    回声';
    回显“员工名称员工名称文件名称”;
    while($row=mysql\u fetch\u assoc($result)){
    回声';
    回显“.$row['employee_id']”;
    回显'.$row['employee_name'].';
    回声';
    $query2='从'file`中选择文件名,其中employee_id='。$row['employee_id']。'ORDER BY file_id DESC';
    $result2=mysql_query($query2)或die(mysql_error($db));
    而($row2=mysql\u fetch\u assoc($result2)){
    echo$row2['file_name'].
    ; } 回声'; 回声'; } 回声';

    这段代码可以工作。

    假设您使用MySQL,并且假设我们使用引用$db建立了数据库连接:

    $query = 'SELECT employee_id, employee_name FROM `employee` ORDER BY employee_name ASC';
    $result = mysql_query($query) or die(mysql_error($db));
    
    echo '<table>';
    echo '<tr><th>employee_id</th><th>employee_name</th><th>file_name</th></tr>';
    
    while ($row = mysql_fetch_assoc($result)) {
        echo '<tr>';
        echo '<td>'.$row['employee_id'].'<td>';
        echo '<td>'.$row['employee_name'].'</td>';
        echo '<td>';
    
        $query2 = 'SELECT file_name FROM `file` WHERE employee_id='.$row['employee_id'].' ORDER BY file_id DESC';
        $result2 = mysql_query($query2) or die(mysql_error($db));
    
        while ($row2 = mysql_fetch_assoc($result2)) {
            echo $row2['file_name'].'<br />';
        }
    
        echo '</td>';
        echo '</tr>';
    }
    
    echo '</table>';
    
    $query='根据员工姓名ASC从'employee'订单中选择员工id、员工姓名';
    $result=mysql\u query($query)或die(mysql\u error($db));
    回声';
    回显“员工名称员工名称文件名称”;
    while($row=mysql\u fetch\u assoc($result)){
    回声';
    回显“.$row['employee_id']”;
    回显'.$row['employee_name'].';
    回声';
    $query2='从'file`中选择文件名,其中employee_id='。$row['employee_id']。'ORDER BY file_id DESC';
    $result2=mysql_query($query2)或die(mysql_error($db));
    而($row2=mysql\u fetch\u assoc($result2)){
    echo$row2['file_name'].
    ; } 回声'; 回声'; } 回声';

    这段代码可以工作。

    使用Vincent表结构可能会解决您的问题。为了得到想要的结果,可以对两个表使用join进行单个查询。所以不需要使用两个查询

    SELECT  e.employee_id as employee_id,            //Display column for employee_id
            e.employee_name as employee_name,        
            f.file_name as file_name
      FROM employee e                                // The e is an alias for table
     INNER JOIN file f                               // The inner join will return all the rows which have same employee_id on both table 
        ON e.employee_id = f.employee_id
     ORDER BY e.employee_name, f.file_name DESC;     // Order of the result default is ASC
    
    更新

    我假设你有两张桌子,结构和文森特是一样的。现在,此查询将获得两个表上的数据。这里的连接部分是,当
    员工表
    上的
    员工id
    文件表
    上具有相同的
    员工id
    时,这将返回一行。有关更多信息,请参阅。然后,订单
    e.employee\u id
    employee
    表上的员工id,因为没有指定订单,所以它将使用默认值,即
    升序

    然后,上述查询的输出可以是下面的代码

    employee_id  +   employee_name  +  file_name
    3            |   pichu          |  file6
    3            |   pichu          |  file1
    1            |   pikachu        |  file7
    1            |   pikachu        |  file4
    1            |   pikachi        |  file3
    2            |   raichu         |  file8
    2            |   raichu         |  file5
    2            |   raichu         |  file2
    
    您会注意到,employee_id和employee_name重复出现。这是因为查询包含在
    SELECT column\u name
    中指定的行中的所有列值。您可以在php中过滤重复值,特别是如果您首先将其存储在对象中,而不是直接打印它

    PHP

    $query = $see_the_query_above;
    $result = mysql_query($query) or die(mysql_error($db));
    $emp_id = "";     //This will be use to remove employee_id if its already echoed.
    $emp_name = "";   //This will be use to remove employee_name if its already echoed.
    
    echo '<table>';
    echo '<tr><th>employee_id</th><th>employee_name</th><th>file_name</th></tr>';
    
    while ($row = mysql_fetch_assoc($result)) {
        //Check $emp_id and $emp_name if same with the current, if same just print nothing or space else replace it with new.
        $emp_id = $emp_id == $row['employee_id'] ? "" : $row['employee_id']
        $emp_name = $emp_name == $row['employee_name'] ? "" : $row['employee_name'];
    
        echo '<tr>';
        echo '<td>'.$emp_id.'<td>';
        echo '<td>'.$emp_name.'</td>';
        echo '<td>'.$row['file_name'].'</td>';
        echo '</tr>';
    }
    echo '</table>';
    
    $query=$参见上面的查询;
    $result=mysql\u query($query)或die(mysql\u error($db));
    $emp_id=“”//如果员工id已被回显,则此选项将用于删除该id。
    $emp_name=“”//如果员工的姓名已被回显,则将使用此选项删除该姓名。
    回声';
    回显“员工名称员工名称文件名称”;
    while($row=mysql\u fetch\u assoc($result)){
    //检查$emp_id和$emp_name(如果与当前相同),如果相同,则不打印任何内容或空格,否则将其替换为新内容。
    $emp\u id=$emp\u id==$row['employee\u id']?“”:$row['employee\u id']
    $emp_name=$emp_name==$row['employee_name']?“”:$row['employee_name'];
    回声';
    回显“.$emp_id.”;
    回音“.$emp_name.”;
    回显'.$row['file_name'].';
    回声';
    }
    回声';
    
    使用Vincent表结构可能会解决您的问题。为了得到想要的结果,可以使用单个查询