prepare

❮ PHP MySQLi 参考手册

示例 - 面向对象的样式

准备要执行的 SQL 语句:

<?php
$mysqli = new mysqli("localhost","my_user","my_password","my_db");

// Check connection
if ($mysqli -> connect_errno) {
  echo "Failed to connect to MySQL: " . $mysqli -> connect_error;
  exit();
}

// prepare and bind
$stmt = $mysqli -> prepare("INSERT INTO MyGuests (firstname, lastname, email) VALUES (?, ?, ?)");
$stmt -> bind_param("sss", $firstname, $lastname, $email);

// set parameters and execute
$firstname = "John";
$lastname = "Doe";
$email = "john@example.com";
$stmt -> execute();

$firstname = "Mary";
$lastname = "Moe";
$email = "mary@example.com";
$stmt -> execute();

echo "New records created successfully";

$stmt -> close();
$mysqli -> close();
?>

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定义和用法

prepare() / mysqli_prepare() 函数用于准备一条SQL语句以供执行。

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语法

面向对象的风格:

$mysqli -> prepare(query)

程序风格:

mysqli_prepare(connection, query)

参数值

参数	描述
connection	必需。规定要使用的 MySQL 连接。
query	必需。指定 SQL 查询。 注释:不要在查询末尾添加分号！

技术细节

返回值:	成功的声明对象。 失败时为 FALSE
PHP 版本:	5+

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❮ PHP MySQLi 参考手册