What are some common reasons for a PHP website to work online but not offline?

One common reason for a PHP website to work online but not offline is due to the website relying on external resources, such as APIs or databases, that are only accessible when the website is online. To solve this issue, you can check if the website is running in an offline environment and provide fallback content or functionality. 

if ($_SERVER['REMOTE_ADDR'] == '127.0.0.1') {
    // Offline environment
    // Provide fallback content or functionality
} else {
    // Online environment
    // Use external resources like APIs or databases
}

Keywords

PHP server configuration database connection file paths caching

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