Php/func mysqli prepare
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PHP mysqli prepare()函数
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(); ?>
定义和用法
prepare()/ mysqli_prepare()函数用于准备要执行的SQL语句。
句法
面向对象的样式:
$mysqli -> prepare(query)
程序风格:
mysqli_prepare(connection, query)
参数值
参数 | 描述 |
---|---|
connection | 需要。指定要使用的MySQL连接 |
query | 需要。指定一个SQL查询。
注意: 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。失败时为假 |
PHP版本: | 5+ |