What are the potential pitfalls to watch out for when configuring a PSR-0 autoloader in PHP projects, based on the provided code snippets and folder structure?

One potential pitfall when configuring a PSR-0 autoloader in PHP projects is not correctly mapping the namespace to the file path. To solve this issue, ensure that the namespace corresponds to the directory structure within the autoloaded directory. 

// Correctly map the namespace to the file path
spl_autoload_register(function($className) {
    $namespace = 'MyNamespace\\';
    $baseDir = __DIR__ . '/src/';

    $className = str_replace($namespace, '', $className);
    $file = $baseDir . str_replace('\\', '/', $className) . '.php';

    if (file_exists($file)) {
        require $file;
    }
});

Keywords

PSR-0 autoloader namespace class mapping file structure

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