PHP code to connect to Mysql database

This article introduces the code about PHP connecting to the Mysql database. It has certain reference value. Now I share it with you. Friends in need can refer to it

<?php
$servername = "127.0.0.1";
$username = "root";
$password = "root";

// 创建连接
$conn = new mysqli($servername, $username, $password);

// 检测连接
if ($conn->connect_error) {
    die("连接失败: " . $conn->connect_error);
}
echo "连接成功";
?>

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