PhpCaptcha::SetMinFontSize PHP Method

    function SetMinFontSize($iMinFontSize)
    {
        $this->iMinFontSize = $iMinFontSize;
    }

    return;
}
if ($mode == 'captcha') {
    $verification_id = $_REQUEST['verification_id'];
    if (empty($verification_id)) {
        $verification_id = 'common';
    }
    $verification_settings = Settings::instance()->getValues('Image_verification');
    $fonts = array(Registry::get('config.dir.lib') . 'other/captcha/verdana.ttf');
    $c = new PhpCaptcha($verification_id, $fonts, $verification_settings['width'], $verification_settings['height']);
    // Set string length
    $c->SetNumChars($verification_settings['string_length']);
    // Set number of distortion lines
    $c->SetNumLines($verification_settings['lines_number']);
    // Set minimal font size
    $c->SetMinFontSize($verification_settings['min_font_size']);
    // Set maximal font size
    $c->SetMaxFontSize($verification_settings['max_font_size']);
    $c->SetGridColour($verification_settings['grid_color']);
    if ($verification_settings['char_shadow'] == 'Y') {
        $c->DisplayShadow(true);
    }
    if ($verification_settings['colour'] == 'Y') {
        $c->UseColour(true);
    }
    if ($verification_settings['string_type'] == 'digits') {
        $c->SetCharSet(array(2, 3, 4, 5, 6, 8, 9));
    } elseif ($verification_settings['string_type'] == 'letters') {
        $c->SetCharSet(range('A', 'F'));
    } else {
        $c->SetCharSet(fn_array_merge(range('A', 'F'), array(2, 3, 4, 5, 6, 8, 9), false));