程式設計@筆記

<?php
// 假定數據庫用戶名：root，密碼：123456，數據庫：RUNOOB
$con=mysqli_connect("localhost","root","123456","RUNOOB");
if (mysqli_connect_errno($con))
{
echo "連接 MySQL 失敗: " . mysqli_connect_error();
}

$sql="SELECT name,url FROM websites ORDER BY alexa";

if ($result=mysqli_query($con,$sql))
{
// 獲取字段 "name" 的信息
$fieldinfo=mysqli_fetch_field_direct($result,1);

printf("字段名: %s",$fieldinfo->name);
echo "<br>";
printf("數據表: %s",$fieldinfo->table);
echo "<br>";
printf("最大長度: %d",$fieldinfo->max_length);

// 釋放結果集
mysqli_free_result($result);
}

mysqli_close($con);
?>