Question

私はPHP/MYSQLを使い慣れていますので、私のデータベースのすべてのレコードの年齢をDATEIFFを使って表示しようとしています。動作しません。私はこれで私を助けてくれる人が必要です。

$result = mysqli_query($con,"SELECT * FROM growers"); 

echo "<table class='table table-striped table-advance table-hover'> 
    <tbody> 
     <tr> 
      <th><i class='icon_profile'></i>&nbsp;Batch</th> 
      <th><i class='icon_ol'></i>&nbsp;Date Received</th> 
      <th><i class='icon_clock_alt'></i>&nbsp;Age when Received</th> 
      <th><i class='icon_clock_alt'></i>&nbsp;Current Age</th> 
      <th><i class='icon_star'></i>&nbsp;NO of Birds</th> 
      <th><i class='icon_info'></i>&nbsp;View More</th> 
     </tr>"; 

     while($row = mysqli_fetch_array($result)) 
     { 
      echo"<tr>"; 
      echo"<td>" . $row['BATCH'] . "</td>"; 
      echo"<td>" . $row['BIRTH DAY'] . "</td>"; 
      echo"<td>" . $row['AGE'] . "&nbsp;Week(s)" . "</td>"; 
      echo"<td>" . "SELECT DATEDIFF("NOW()", "$row['BIRTH DAY']") AS CURRENT AGE". "</td>"; 
      echo"<td>" . $row['NO OF BIRDS'] . "</td>"; 
      echo"<td>" . $row['AGE'] . "</td>"; 
      echo"</tr>"; 
     } 
echo "</table>"; 

mysqli_close($con); 
?> 

Answer 1

あなたは

$result = mysqli_query($con, 
     "SELECT 
     growers.BATCH, 
     growers.`BIRTH DAY`, 
     growers.AGE,    
     DATEDIFF(NOW(),growers.`BIRTH DAY`) AS CURRENT_AGE, 
     growers.`NO OF BIRDS`    
     FROM growers; " 
    ); 


         echo "<table class='table table-striped table-advance table-hover'> 
         <tbody> 
         <tr> 
         <th><i class='icon_profile'></i>&nbsp;Batch</th> 
         <th><i class='icon_ol'></i>&nbsp;Date Received</th> 
         <th><i class='icon_clock_alt'></i>&nbsp;Age when Received</th> 
         <th><i class='icon_clock_alt'></i>&nbsp;Current Age</th> 
         <th><i class='icon_star'></i>&nbsp;NO of Birds</th> 
         <th><i class='icon_info'></i>&nbsp;View More</th> 
         </tr>"; 

         while($row = mysqli_fetch_array($result)) 
         { 
         echo"<tr>"; 
         echo"<td>" . $row['BATCH'] . "</td>"; 
         echo"<td>" . $row['BIRTH DAY'] . "</td>"; 
         echo"<td>" . $row['AGE'] . "&nbsp;Week(s)" . "</td>"; 
         echo"<td>" . $row['CURRENT_AGE'] . "</td>"; 
         echo"<td>" . $row['NO OF BIRDS'] . "</td>"; 
         echo"<td>" . $row['AGE'] . "</td>"; 
         echo"</tr>"; 
         } 
         echo "</table>"; 

         mysqli_close($con); 
         ?>