PHP的mysqli_stmt_init()函數(shù)講解

?php
// 假定數(shù)據(jù)庫用戶名：root，密碼：123456，數(shù)據(jù)庫：codingdict
$con=mysqli_connect("localhost","root","123456","codingdict");
if (mysqli_connect_errno($con))
{
 echo "連接 MySQL 失敗: " . mysqli_connect_error();
}
// 修改數(shù)據(jù)庫連接字符集為 utf8
mysqli_set_charset($con,"utf8");
$country="CN";
// 創(chuàng)建預(yù)處理語句
$stmt=mysqli_stmt_init($con);
if (mysqli_stmt_prepare($stmt,"SELECT name FROM websites WHERE country=?"))
{
 // 綁定參數(shù)
 mysqli_stmt_bind_param($stmt,"s",$country);
 // 執(zhí)行查詢
 mysqli_stmt_execute($stmt);
 // 綁定結(jié)果變量
 mysqli_stmt_bind_result($stmt,$name);
 // 獲取值
 mysqli_stmt_fetch($stmt);
 printf("%s 國家的網(wǎng)站為：%s",$country,$name);
 // 關(guān)閉預(yù)處理語句
 mysqli_stmt_close($stmt);
}
mysqli_close($con);
?>