使用mysql/php对前三名排序

Question

我想从我的数据库中获得三个具有最高值的实体，对它们进行排序并将它们放在每个div中，就像前三名的记分板一样。我也将能够分隔字段（ID，名称，说明等）和检索那些通过使用例如：

<?php echo $sql['id']; ?> 

我已经知道的代码来获取信息，并对其进行排序：

$sql = ("SELECT * FROM table ORDER BY tablefield DESC LIMIT 3"); 

但我不知道如何将三个实体放入他们的每一个div的和独立实体的领域，如名称，说明等

Answer 1

如果你正在使用MySQL（PDO），我强烈建议，那么它的完成如下：

$sql = "SELECT * FROM table ORDER BY tablefield DESC LIMIT 3"; 
$stmt = $conn->prepare($sql); 
$stmt->execute(); 

/*here you get a multidimentional array with the information you wanted*/ 
$rows = $stmt->fetchAll(PDO::FETCH_ASSOC); 


//this would be one method of extracting the information 
//If you want to place them in specific divs as your 
//question suggests, then you could just use the array 
//inside the divs instead than echoing them out in 
//this foreach loop 

foreach ($rows as $row) 
{ 
    foreach ($row as $key => $value) 
    { 
    echo $key.": ".$value."<br>"; 
    } 
    echo "<br>"; 
} 

/*alternatively you could just use: 

print_r($rows); 

if you just want to have a quick look at the 
composition of the array*/