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PHP数据库应用 - Coggle Diagram
PHP数据库应用
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预处理语句
INSERT INTO MyGuests (firstname, lastname, email) VALUES(?, ?, ?)
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连接数据库
$conn = new mysqli($servername, $username, $password);
if ($conn->connect_error){
die("连接失败: " . $conn->connect_error);
}
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