连接数据库失败

Question

我正在尝试连接到我的数据库，但显示“连接到数据库失败”。有人知道这个问题

<?php
    $db_host = "localhost";
    $db_user = "my_login";
    $db_pass = "123456";
    $db_name = "my_login";

    $con =  mysqli_connect($db_host,$db_user,$db_pass,$db_name);
    if(mysqli_connect_error()){
        echo 'connect to database failed';
    }
?>

Answer 1

您的代码已重写：

$con = mysqli_connect($db_host,$db_user,$db_pass,$db_name);
if (!$con)
{
    echo 'connect to database failed: '.mysqli_connect_error();
    die(1);
}

现在您看到错误原因了！