如何選擇具有相同值的錶行？

Question

我有這樣一個表：

我要選擇具有相同的代碼行和PHP在我的網頁這樣的例子演示了他們的代碼333306b4af587：

該怎麼做？

Answer 1

<?php 
include 'db_inc.php'; 
$code=mysqli_query($dbCnn,"select distinct uniqid,questionid from answers")  or die(mysqli_error($dbCnn)); 

echo "<table border='1'> "; 

while($row=mysqli_fetch_array($code)){ 

$result=mysqli_query($dbCnn,"select * from answers where uniqid='$row[uniqid]' and formid=$form")or die(mysqli_error($dbCnn)); 
    echo "<tr>"; 
    while ($responses=mysqli_fetch_array($result)){ 
     echo "<td>$responses[answer]</td>"; 

    } 
echo "</tr>"; 
} 

echo "</table>"; 

Answer 2

使用可以使用這個 您將有

SELECT row FROM table WHERE value1= value2; 

如果你想對的兩個相同的值

SELECT row FROM Qustion1, Question2 WHERE value1 <> value2 AND value1 = value2