MySQLi面向过程实践---预处理

mysqli_stmt mysqli_prepare ( mysqli $link , string $query )

bool mysqli_stmt_bind_param ( mysqli_stmt $stmt , string $types , mixed &$var1 [, mixed &$... ] )

bool mysqli_stmt_execute ( mysqli_stmt $stmt )

bool mysqli_stmt_close ( mysqli_stmt $stmt )

mixed mysqli_query ( mysqli $link , string $query)

bool mysqli_set_charset ( mysqli $link , string $charset )

<?php 
	$conn=mysqli_connect("localhost","root","root","test");
	
	//设置字符集	
	mysqli_set_charset($conn,"utf8");

	//预处理，注意返回的类型是mysqli_stmt
	$stmt=mysqli_prepare($conn,"insert into aaa values (?,?)");

	// 绑定参数，第二个参数，请看下文注解
	// 注意，在$id,$name等变量的位置，不能出现常亮
	// mysqli_stmt_bind_param($stmt,"is",5,‘aaaaa‘);写法是错误的
	mysqli_stmt_bind_param($stmt,"is",$id,$name);

	// 参数赋值
	$id="99";$name="xxxxxx";

	//执行预处理
	mysqli_stmt_execute($stmt);

	//关闭预处理，
	//注意关闭的不是数据库连接，而是“预处理”
	mysqli_stmt_close($stmt);

	//关闭数据库连接
	mysqli_close($conn);
 ?>

bool mysqli_stmt_bind_param ( mysqli_stmt $stmt , string $types , mixed &$var1 [, mixed &$... ] )