Untitled

function removeAccents($string) {
    $search = [
        'á', 'í', 'ó', 'ú', 'é', 'ñ', 'ü',
        'Á', 'Í', 'Ó', 'Ú', 'É', 'Ñ', 'Ü',
        'à', 'è', 'ì', 'ò', 'ù', 
        'À', 'È', 'Ì', 'Ò', 'Ù'
    ];
    $replace = [
        'a', 'i', 'o', 'u', 'e', 'n', 'u',
        'A', 'I', 'O', 'U', 'E', 'N', 'U',
        'a', 'e', 'i', 'o', 'u',
        'A', 'E', 'I', 'O', 'U'
    ];
    return str_replace($search, $replace, $string);
}

// Funzioni helper
function loadJsonFile($filePath) {
    return file_exists($filePath) ? json_decode(file_get_contents($filePath), true) : [];
}

function saveJsonFile($filePath, $data) {
    file_put_contents($filePath, json_encode($data));
}

function removeSpecialCharacters($string) {
    return preg_replace('/[#\/*()\-\+]/', '', $string);
}

foreach ($_POST as $key => $value) {
    if (is_string($value)) {
        $_POST[$key] = removeAccents($value);
    }
}