What are some best practices for autoloading models in Zend Framework using PHP?

When working with Zend Framework in PHP, it is important to autoload models efficiently to avoid cluttering the codebase with require statements for each model file. One best practice is to utilize the built-in autoloading capabilities of Zend Framework by setting up a custom autoloader that can automatically load classes as needed.

// Autoloading models in Zend Framework using a custom autoloader
spl_autoload_register(function($class) {
    $classPath = str_replace('\\', DIRECTORY_SEPARATOR, $class);
    $file = 'path/to/models/' . $classPath . '.php';
    
    if (file_exists($file)) {
        require_once $file;
    }
});