php - 如何获取mysql列名和值

Question

我正在尝试动态获取列名和值，这意味着如果在数据库中添加了新列，我想在页面刷新时在前端显示

下面会得到列名，但我需要检索与列名相关的值。谁能指导我如何做，谢谢。

  <?php

  Include"db.php";


    echo "<table>";
    echo "<tr>";
    $qColumnNames = mysql_query("SHOW COLUMNS FROM fullnames") or die("mysql error"); 


    $numColumns = mysql_num_rows($qColumnNames); 
    $x = 0; 
    while ($x < $numColumns) 
    { 
        $colname = mysql_fetch_row($qColumnNames); 
        $col[$colname[0]] = $colname[0]; 
        $x++; 
    } 

    foreach($col as $head){
        echo "<th>$head</th>";

    }



    echo "</tr>";
    echo "</table>";

    ?>

Answer 1

可以做这样的事情:(前提是你的检索列名的函数有效)

编辑代码

Include("db.php");


echo "<table>";

$qColumnNames = mysql_query("SHOW COLUMNS FROM fullnames") or die("mysql error"); 


$numColumns = mysql_num_rows($qColumnNames); 
$x = 0; 

while ($x < $numColumns) 
{ 
    $colname = mysql_fetch_row($qColumnNames); 
    $col[$colname[0]] = $colname[0];
    $x++; 
}

$result = mysql_query("SELECT * FROM fullnames");
$counter = 0;
while($row = mysql_fetch_assoc($result)){
     foreach($col as $c){
        $rows[$counter][] = "<td>" . $row[$c] . "</td>";
     }
    $counter++;
}

echo "<tr>";
foreach($col as $c){
    //echo headers
     echo "<th>" . $c . "</th>";
}
echo "</tr>";
foreach($rows as $r){
    //Echo all content
    echo "<tr>";
        foreach($r as $cell){
             //echo all cells
             echo $cell;
        }
    echo "</tr>";
}
echo "</table>";

?>

还没有时间测试这个，但它应该可以工作。(但您应该改用 msqli_ 函数。