Question

我有一个包含一行和一列的表。存储的值是整数类型，我想在我的HTML页面中显示该值。表名为'count'，列名为'order_number'。

请告诉我如何在页面中显示此值。

Answer 1

使用php，你需要连接到mysql并查询数据库，然后回显结果。这是mysqli的一个例子：

$mysqli = new mysqli('localhost', 'my_user', 'my_password', 'your_database');

if (mysqli_connect_error()) {
    die('Connect Error (' . mysqli_connect_errno() . ') ' . mysqli_connect_error());
}


$q=$mysqli->query("select * from `your_database`.`your_table` WHERE <some_condition>");
$cnt=0;
while($r=$q->fetch_assoc()) {
   $val[$cnt] = $r['field_name'];
    $cnt++;
}
$mysqli->close();

//Display first record
echo "The first record is: ".$val[0];

Answer 2

试试这个例子

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>Untitled Document</title>
</head>

<body>
<?php
$cn=mysql_connect('localhost','user','password') or die(mysql_error());
mysql_select_db('test');
$sql="select order_number from count";
$read=mysql_query($sql,$cn)  or die(mysql_error());
$row=mysql_fetch_array($read ) or die(mysql_error());
echo $row['order_number'];
?>
</body>
</html>

Answer 3

试试这个：

<?php
$con = mysql_connect("localhost", "peter", "abc123");
if (!$con)
  {
  die('Could not connect: ' . mysql_error());
  }

$db_selected = mysql_select_db("test_db",$con);

$sql = "SELECT order_number from count";
$result = mysql_query($sql,$con);

while($row = mysql_fetch_assoc($result)) {   
        foreach ($row as $col => $val) {
            echo $col." = ".$val."<br>";
        }
    }
?>

如何在html页面中显示列的值？

3 个答案: