What are some alternatives to using $_ENV for accessing global information in PHP?

Using $_ENV to access global information in PHP can be limiting as it only retrieves environment variables. An alternative approach is to use the getenv() function, which allows you to access environment variables as well as variables from other sources such as the server or configuration files. 

// Using getenv() to access global information
$serverName = getenv('SERVER_NAME');
$apiKey = getenv('API_KEY');
$configValue = getenv('CONFIG_VALUE');

// You can also specify a default value if the variable is not set
$defaultPort = getenv('PORT', 8080);

Keywords

super globals getenv php.ini configuration environment variables

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