In a shared application scenario, what are the best practices for selecting the correct database for each company in PHP?

In a shared application scenario, it is important to consider the specific needs and requirements of each company when selecting the correct database. This can involve evaluating factors such as data volume, performance, scalability, and cost. One approach is to create a configuration file where each company can specify their preferred database type and credentials, allowing the application to dynamically connect to the appropriate database based on the company's settings. 

// Configuration file example
$company1_db = [
    'host' => 'company1_db_host',
    'username' => 'company1_db_username',
    'password' => 'company1_db_password',
    'database' => 'company1_database',
];

$company2_db = [
    'host' => 'company2_db_host',
    'username' => 'company2_db_username',
    'password' => 'company2_db_password',
    'database' => 'company2_database',
];

// Connect to the correct database based on company settings
function connectToCompanyDatabase($company) {
    $db = ${$company . '_db'};
    $conn = new mysqli($db['host'], $db['username'], $db['password'], $db['database']);
    if ($conn->connect_error) {
        die("Connection failed: " . $conn->connect_error);
    }
    return $conn;
}

// Example of connecting to company1's database
$company1_conn = connectToCompanyDatabase('company1');

Keywords

shared application database selection PHP company best practices

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