// Load the Spanish language file $this->loadLanguageFile("es.php");
// Load the French language file and assign a prefix $this->loadLanguageFile("fr.php", "prefix_");
// Load the German language file and assign it to a variable $german = $this->loadLanguageFile("de.php", "prefix_");In this example, the loadLanguageFile function loads the German language file "de.php" into the controller and assigns it to the variable $german. This code is useful when you need to access specific variables from the language file later in the code. Package/library: Symfony In conclusion, loadLanguageFile controller function is a common feature in PHP web application frameworks such as CodeIgniter, Laravel, and Symfony. It simplifies the code structure and improve readability for projects with multiple languages support.