了解常用的PHP网络服务器软件

<VirtualHost *:80>
    ServerName mydomain.com
    DocumentRoot /path/to/mydomain
    <Directory /path/to/mydomain>
        Options Indexes FollowSymLinks
        AllowOverride All
        Require all granted
    </Directory>
    ErrorLog /path/to/mydomain/error.log
    CustomLog /path/to/mydomain/access.log combined
</VirtualHost>

server {
    listen 80;
    server_name mydomain.com www.mydomain.com;
    root /path/to/mydomain;
    index index.php;

    location / {
        try_files $uri $uri/ /index.php?$args;
    }

    location ~ .php$ {
        include fastcgi_params;
        fastcgi_pass unix:/var/run/php/php7.4-fpm.sock;
    }
}

[www]
user = www-data
group = www-data
listen = /var/run/php/php7.4-fpm.sock
listen.owner = www-data
listen.group = www-data
listen.mode = 0660

pm = dynamic
pm.max_children = 5
pm.start_servers = 2
pm.min_spare_servers = 1
pm.max_spare_servers = 3

<?php
$servername = "localhost";
$username = "root";
$password = "password";
$dbname = "mydatabase";

$conn = new mysqli($servername, $username, $password, $dbname);

if ($conn->connect_error) {
    die("连接失败: " . $conn->connect_error);
}

$sql = "SELECT * FROM users";
$result = $conn->query($sql);

if ($result->num_rows > 0) {
    while($row = $result->fetch_assoc()) {
        echo "Name: " . $row["name"]. " - Email: " . $row["email"]. "<br>";
    }
} else {
    echo "0 结果";
}

$conn->close();
?>