How can PHP developers troubleshoot and debug language-related issues, such as language switching not working as expected, in their code?

To troubleshoot and debug language-related issues in PHP code, developers can start by checking the configuration settings for language switching and ensuring that the appropriate language files are being loaded correctly. They can also use debugging tools like var_dump() or print_r() to inspect variables and identify any issues with language variables or translations. Additionally, developers can use error reporting functions like error_log() to track down any errors that may be causing language switching to not work as expected.

// Example code snippet to troubleshoot language switching issue

// Check if language files are being loaded correctly
if(file_exists('lang/'.$selected_language.'.php')) {
    include('lang/'.$selected_language.'.php');
} else {
    error_log('Error: Language file not found');
}

// Use var_dump() to inspect language variables
var_dump($languageArray);

// Use error_log() to track down any errors
error_log('Language switching not working as expected');