PHP mysqli_stmt_init () function

PHP MySQLi Reference Manual

Declare and initialize return mysqli_stmt_prepare () object is used:

<?php 
// 假定数据库用户名：root，密码：123456，数据库：w3big 
$con=mysqli_connect("localhost","root","123456","w3big"); 
if (mysqli_connect_errno($con)) 
{ 
    echo "连接 MySQL 失败: " . mysqli_connect_error(); 
} 
// 修改数据库连接字符集为 utf8
mysqli_set_charset($con,"utf8");

$country="CN";

// 创建预处理语句
$stmt=mysqli_stmt_init($con);

if (mysqli_stmt_prepare($stmt,"SELECT name FROM websites WHERE country=?"))
{
	
	// 绑定参数
	mysqli_stmt_bind_param($stmt,"s",$country);
	
	// 执行查询
	mysqli_stmt_execute($stmt);
	
	// 绑定结果变量
	mysqli_stmt_bind_result($stmt,$name);
	
	// 获取值
	mysqli_stmt_fetch($stmt);
	
	printf("%s 国家的网站为：%s",$country,$name);
	
	// 关闭预处理语句
	mysqli_stmt_close($stmt);
}

mysqli_close($con);
?>

Definition and Usage

mysqli_stmt_init () function initializes the declaration and return mysqli_stmt_prepare () object.

grammar

technical details