条件PHP/Javascript表单元素

我有一个关于Zen Cart中新帐户表单的条件声明的问题

现在，我的表格设置为要求客户的税务识别号（EIN）至少为9个字符，但我需要这是有条件的，只有在提交的同一表格中将国家设置为“美国”

美国以外的任何国家都应该能够在不输入EIN的情况下申请帐户

以下是检查表单的javascript/php：

<?php
/**
 * jscript_form_check
 *
 * @package page
 * @copyright Copyright 2003-2010 Zen Cart Development Team
 * @copyright Portions Copyright 2003 osCommerce
 * @license http://www.zen-cart.com/license/2_0.txt GNU Public License V2.0
 * @version $Id: jscript_form_check.php 16186 2010-05-03 18:38:57Z drbyte $
 */
?>
<script language="javascript" type="text/javascript"><!--
var selected;

function check_form_optional(form_name) {
  var form = form_name;
  if (!form.elements['firstname']) {
    return true;
  } else {
    var firstname = form.elements['firstname'].value;
    var lastname = form.elements['lastname'].value;
    var street_address = form.elements['street_address'].value;

    if (firstname == '' && lastname == '' && street_address == '') {
      return true;
    } else {
      return check_form(form_name);
    }
  }
}
var form = "";
var submitted = false;
var error = false;
var error_message = "";

function check_input(field_name, field_size, message) {
  if (form.elements[field_name] && (form.elements[field_name].type != "hidden")) {
    if (field_size == 0) return;
    var field_value = form.elements[field_name].value;

    if (field_value == '' || field_value.length < field_size) {
      error_message = error_message + "* " + message + "\n";
      error = true;
    }
  }
}

function check_radio(field_name, message) {
  var isChecked = false;

  if (form.elements[field_name] && (form.elements[field_name].type != "hidden")) {
    var radio = form.elements[field_name];

    for (var i=0; i<radio.length; i++) {
      if (radio[i].checked == true) {
        isChecked = true;
        break;
      }
    }

    if (isChecked == false) {
      error_message = error_message + "* " + message + "\n";
      error = true;
    }
  }
}

function check_select(field_name, field_default, message) {
  if (form.elements[field_name] && (form.elements[field_name].type != "hidden")) {
    var field_value = form.elements[field_name].value;

    if (field_value == field_default) {
      error_message = error_message + "* " + message + "\n";
      error = true;
    }
  }
}

function check_password(field_name_1, field_name_2, field_size, message_1, message_2) {
  if (form.elements[field_name_1] && (form.elements[field_name_1].type != "hidden")) {
    var password = form.elements[field_name_1].value;
    var confirmation = form.elements[field_name_2].value;

    if (password == '' || password.length < field_size) {
      error_message = error_message + "* " + message_1 + "\n";
      error = true;
    } else if (password != confirmation) {
      error_message = error_message + "* " + message_2 + "\n";
      error = true;
    }
  }
}

function check_password_new(field_name_1, field_name_2, field_name_3, field_size, message_1, message_2, message_3) {
  if (form.elements[field_name_1] && (form.elements[field_name_1].type != "hidden")) {
    var password_current = form.elements[field_name_1].value;
    var password_new = form.elements[field_name_2].value;
    var password_confirmation = form.elements[field_name_3].value;

    if (password_current == '' ) {
      error_message = error_message + "* " + message_1 + "\n";
      error = true;
    } else if (password_new == '' || password_new.length < field_size) {
      error_message = error_message + "* " + message_2 + "\n";
      error = true;
    } else if (password_new != password_confirmation) {
      error_message = error_message + "* " + message_3 + "\n";
      error = true;
    }
  }
}

function check_state(min_length, min_message, select_message) {
  if (form.elements["state"] && form.elements["zone_id"]) {
    if (!form.state.disabled && form.zone_id.value == "") check_input("state", min_length, min_message);
  } else if (form.elements["state"] && form.elements["state"].type != "hidden" && form.state.disabled) {
    check_select("zone_id", "", select_message);
  }
}

function check_form(form_name) {
  if (submitted == true) {
    alert("<?php echo JS_ERROR_SUBMITTED; ?>");
    return false;
  }

  error = false;
  form = form_name;
  error_message = "<?php echo JS_ERROR; ?>";

<?php if (ACCOUNT_GENDER == 'true') echo '  check_radio("gender", "' . ENTRY_GENDER_ERROR . '");' . "\n"; ?>

<?php if ((int)ENTRY_FIRST_NAME_MIN_LENGTH > 0) { ?>
  check_input("firstname", <?php echo (int)ENTRY_FIRST_NAME_MIN_LENGTH; ?>, "<?php echo ENTRY_FIRST_NAME_ERROR; ?>");
<?php } ?>
<?php if ((int)ENTRY_LAST_NAME_MIN_LENGTH > 0) { ?>
  check_input("lastname", <?php echo (int)ENTRY_LAST_NAME_MIN_LENGTH; ?>, "<?php echo ENTRY_LAST_NAME_ERROR; ?>");
<?php } ?>

<?php if (ACCOUNT_DOB == 'true' && (int)ENTRY_DOB_MIN_LENGTH != 0) echo '  check_input("dob", ' . (int)ENTRY_DOB_MIN_LENGTH . ', "' . ENTRY_DATE_OF_BIRTH_ERROR . '");' . "\n"; ?>
<?php if (ACCOUNT_COMPANY == 'true' && (int)ENTRY_COMPANY_MIN_LENGTH != 0) echo '  check_input("company", ' . (int)ENTRY_COMPANY_MIN_LENGTH . ', "' . ENTRY_COMPANY_ERROR . '");' . "\n"; ?>
<?php if (ACCOUNT_EIN == 'true' && (int)ENTRY_EIN_MIN_LENGTH != 0) echo '  check_input("ein", ' . (int)ENTRY_EIN_MIN_LENGTH . ', "' . ENTRY_EIN_ERROR . '");' . "\n"; ?>
<?php if ((int)ENTRY_EMAIL_ADDRESS_MIN_LENGTH > 0) { ?>
  check_input("email_address", <?php echo (int)ENTRY_EMAIL_ADDRESS_MIN_LENGTH; ?>, "<?php echo ENTRY_EMAIL_ADDRESS_ERROR; ?>");
<?php } ?>
<?php if ((int)ENTRY_STREET_ADDRESS_MIN_LENGTH > 0) { ?>
  check_input("street_address", <?php echo (int)ENTRY_STREET_ADDRESS_MIN_LENGTH; ?>, "<?php echo ENTRY_STREET_ADDRESS_ERROR; ?>");
<?php } ?>
<?php if ((int)ENTRY_POSTCODE_MIN_LENGTH > 0) { ?>
  check_input("postcode", <?php echo (int)ENTRY_POSTCODE_MIN_LENGTH; ?>, "<?php echo ENTRY_POST_CODE_ERROR; ?>");
<?php } ?>
<?php if ((int)ENTRY_CITY_MIN_LENGTH > 0) { ?>
  check_input("city", <?php echo (int)ENTRY_CITY_MIN_LENGTH; ?>, "<?php echo ENTRY_CITY_ERROR; ?>");
<?php } ?>
<?php if (ACCOUNT_STATE == 'true') { ?>
  check_state(<?php echo (int)ENTRY_STATE_MIN_LENGTH . ', "' . ENTRY_STATE_ERROR . '", "' . ENTRY_STATE_ERROR_SELECT; ?>");
<?php } ?>

  check_select("country", "", "<?php echo ENTRY_COUNTRY_ERROR; ?>");

<?php if ((int)ENTRY_TELEPHONE_MIN_LENGTH > 0) { ?>
  check_input("telephone", <?php echo ENTRY_TELEPHONE_MIN_LENGTH; ?>, "<?php echo ENTRY_TELEPHONE_NUMBER_ERROR; ?>");
<?php } ?>

<?php if ((int)ENTRY_PASSWORD_MIN_LENGTH > 0) { ?>
  check_password("password", "confirmation", <?php echo (int)ENTRY_PASSWORD_MIN_LENGTH; ?>, "<?php echo ENTRY_PASSWORD_ERROR; ?>", "<?php echo ENTRY_PASSWORD_ERROR_NOT_MATCHING; ?>");
  check_password_new("password_current", "password_new", "password_confirmation", <?php echo (int)ENTRY_PASSWORD_MIN_LENGTH; ?>, "<?php echo ENTRY_PASSWORD_ERROR; ?>", "<?php echo ENTRY_PASSWORD_NEW_ERROR; ?>", "<?php echo ENTRY_PASSWORD_NEW_ERROR_NOT_MATCHING; ?>");
<?php } ?>

  if (error == true) {
    alert(error_message);
    return false;
  } else {
    submitted = true;
    return true;
  }
}
//--></script>

我是否正确地假设我需要添加一个条件运算符，以说明如果国家设置为美国（zone_id 223），那么只应对EIN编号执行检查？否则，别管它了

提前非常感谢：）

这是表格代码：我感觉我们快到了，请原谅我的无知

    <?php
/**
 * Page Template
 *
 * Loaded automatically by index.php?main_page=create_account.<br />
 * Displays Create Account form.
 *
 * @package templateSystem
 * @copyright Copyright 2003-2006 Zen Cart Development Team
 * @copyright Portions Copyright 2003 osCommerce
 * @license http://www.zen-cart.com/license/2_0.txt GNU Public License V2.0
 * @version $Id: tpl_modules_create_account.php 4822 2006-10-23 11:11:36Z drbyte $
 */
?>

<?php if ($messageStack->size('create_account') > 0) echo $messageStack->output('create_account'); ?>
<div class="alert forward"><?php echo FORM_REQUIRED_INFORMATION; ?></div>
<br class="clearBoth" />

<?php
  if (DISPLAY_PRIVACY_CONDITIONS == 'true') {
?>
<fieldset>
<legend><?php echo TABLE_HEADING_PRIVACY_CONDITIONS; ?></legend>
<div class="information"><?php echo TEXT_PRIVACY_CONDITIONS_DESCRIPTION;?></div>
<?php echo zen_draw_checkbox_field('privacy_conditions', '1', false, 'id="privacy"');?>
<label class="checkboxLabel" for="privacy"><?php echo TEXT_PRIVACY_CONDITIONS_CONFIRM;?></label>
</fieldset>
<?php
  }
?>

<?php
  if (ACCOUNT_COMPANY == 'true') {
?>
<fieldset>
<legend><?php echo CATEGORY_COMPANY; ?></legend>
<label class="inputLabel" for="company"><?php echo ENTRY_COMPANY; ?></label>
<?php echo zen_draw_input_field('company', '', zen_set_field_length(TABLE_ADDRESS_BOOK, 'entry_company', '40') . ' id="company"') . (zen_not_null(ENTRY_COMPANY_TEXT) ? '<span class="alert">' . ENTRY_COMPANY_TEXT . '</span>': ''); ?>
<br class="clearBoth" />
<label class="inputLabel" for="ein"><?php echo ENTRY_EIN; ?></label>
<?php echo zen_draw_input_field('ein', '', 'id="ein"') . (zen_not_null(ENTRY_EIN_TEXT) ? '<span class="alert">' . ENTRY_EIN_TEXT . '</span>': ''); ?>
</fieldset>
<?php
  }
?>

<fieldset>
<legend><?php echo TABLE_HEADING_ADDRESS_DETAILS; ?></legend>
<?php
  if (ACCOUNT_GENDER == 'true') {
?>
<?php echo zen_draw_radio_field('gender', 'm', '', 'id="gender-male"') . '<label class="radioButtonLabel" for="gender-male">' . MALE . '</label>' . zen_draw_radio_field('gender', 'f', '', 'id="gender-female"') . '<label class="radioButtonLabel" for="gender-female">' . FEMALE . '</label>' . (zen_not_null(ENTRY_GENDER_TEXT) ? '<span class="alert">' . ENTRY_GENDER_TEXT . '</span>': ''); ?>
<br class="clearBoth" />
<?php
  }
?>

<label class="inputLabel" for="firstname"><?php echo ENTRY_FIRST_NAME; ?></label>
<?php echo zen_draw_input_field('firstname', '', zen_set_field_length(TABLE_CUSTOMERS, 'customers_firstname', '40') . ' id="firstname"') . (zen_not_null(ENTRY_FIRST_NAME_TEXT) ? '<span class="alert">' . ENTRY_FIRST_NAME_TEXT . '</span>': ''); ?>
<br class="clearBoth" />

<label class="inputLabel" for="lastname"><?php echo ENTRY_LAST_NAME; ?></label>
<?php echo zen_draw_input_field('lastname', '', zen_set_field_length(TABLE_CUSTOMERS, 'customers_lastname', '40') . ' id="lastname"') . (zen_not_null(ENTRY_LAST_NAME_TEXT) ? '<span class="alert">' . ENTRY_LAST_NAME_TEXT . '</span>': ''); ?>
<br class="clearBoth" />

<label class="inputLabel" for="street-address"><?php echo ENTRY_STREET_ADDRESS; ?></label>
  <?php echo zen_draw_input_field('street_address', '', zen_set_field_length(TABLE_ADDRESS_BOOK, 'entry_street_address', '40') . ' id="street-address"') . (zen_not_null(ENTRY_STREET_ADDRESS_TEXT) ? '<span class="alert">' . ENTRY_STREET_ADDRESS_TEXT . '</span>': ''); ?>
<br class="clearBoth" />

<?php
  if (ACCOUNT_SUBURB == 'true') {
?>
<label class="inputLabel" for="suburb"><?php echo ENTRY_SUBURB; ?></label>
<?php echo zen_draw_input_field('suburb', '', zen_set_field_length(TABLE_ADDRESS_BOOK, 'entry_suburb', '40') . ' id="suburb"') . (zen_not_null(ENTRY_SUBURB_TEXT) ? '<span class="alert">' . ENTRY_SUBURB_TEXT . '</span>': ''); ?>
<br class="clearBoth" />
<?php
  }
?>

<label class="inputLabel" for="city"><?php echo ENTRY_CITY; ?></label>
<?php echo zen_draw_input_field('city', '', zen_set_field_length(TABLE_ADDRESS_BOOK, 'entry_city', '40') . ' id="city"') . (zen_not_null(ENTRY_CITY_TEXT) ? '<span class="alert">' . ENTRY_CITY_TEXT . '</span>': ''); ?>
<br class="clearBoth" />

<?php
  if (ACCOUNT_STATE == 'true') {
    if ($flag_show_pulldown_states == true) {
?>
<label class="inputLabel" for="stateZone" id="zoneLabel"><?php echo ENTRY_STATE; ?></label>
<?php
      echo zen_draw_pull_down_menu('zone_id', zen_prepare_country_zones_pull_down($selected_country), $zone_id, 'id="stateZone"');
      if (zen_not_null(ENTRY_STATE_TEXT)) echo '&nbsp;<span class="alert">' . ENTRY_STATE_TEXT . '</span>'; 
    }
?>

<?php if ($flag_show_pulldown_states == true) { ?>
<br class="clearBoth" id="stBreak" />
<?php } ?>
<label class="inputLabel" for="state" id="stateLabel"><?php echo $state_field_label; ?></label>
<?php
    echo zen_draw_input_field('state', '', zen_set_field_length(TABLE_ADDRESS_BOOK, 'entry_state', '40') . ' id="state"');
    if (zen_not_null(ENTRY_STATE_TEXT)) echo '&nbsp;<span class="alert" id="stText">' . ENTRY_STATE_TEXT . '</span>';
    if ($flag_show_pulldown_states == false) {
      echo zen_draw_hidden_field('zone_id', $zone_name, ' ');
    }
?>
<br class="clearBoth" />
<?php
  }
?>

<label class="inputLabel" for="postcode"><?php echo ENTRY_POST_CODE; ?></label>
<?php echo zen_draw_input_field('postcode', '', zen_set_field_length(TABLE_ADDRESS_BOOK, 'entry_postcode', '40') . ' id="postcode"') . (zen_not_null(ENTRY_POST_CODE_TEXT) ? '<span class="alert">' . ENTRY_POST_CODE_TEXT . '</span>': ''); ?>
<br class="clearBoth" />

<label class="inputLabel" for="country"><?php echo ENTRY_COUNTRY; ?></label>
<?php echo zen_get_country_list('zone_country_id', $selected_country, 'id="country" ' . ($flag_show_pulldown_states == true ? 'onchange="update_zone(this.form);"' : '')) . (zen_not_null(ENTRY_COUNTRY_TEXT) ? '<span class="alert">' . ENTRY_COUNTRY_TEXT . '</span>': ''); ?>
<br class="clearBoth" />
</fieldset>

<fieldset>
<legend><?php echo TABLE_HEADING_PHONE_FAX_DETAILS; ?></legend>
<label class="inputLabel" for="telephone"><?php echo ENTRY_TELEPHONE_NUMBER; ?></label>
<?php echo zen_draw_input_field('telephone', '', zen_set_field_length(TABLE_CUSTOMERS, 'customers_telephone', '40') . ' id="telephone"') . (zen_not_null(ENTRY_TELEPHONE_NUMBER_TEXT) ? '<span class="alert">' . ENTRY_TELEPHONE_NUMBER_TEXT . '</span>': ''); ?>

<?php
  if (ACCOUNT_FAX_NUMBER == 'true') {
?>
<br class="clearBoth" />
<label class="inputLabel" for="fax"><?php echo ENTRY_FAX_NUMBER; ?></label>
<?php echo zen_draw_input_field('fax', '', 'id="fax"') . (zen_not_null(ENTRY_FAX_NUMBER_TEXT) ? '<span class="alert">' . ENTRY_FAX_NUMBER_TEXT . '</span>': ''); ?>
<?php
  }
?>
</fieldset>

<?php
  if (ACCOUNT_DOB == 'true') {
?>
<fieldset>
<legend><?php echo TABLE_HEADING_DATE_OF_BIRTH; ?></legend>
<label class="inputLabel" for="dob"><?php echo ENTRY_DATE_OF_BIRTH; ?></label>
<?php echo zen_draw_input_field('dob','', 'id="dob"') . (zen_not_null(ENTRY_DATE_OF_BIRTH_TEXT) ? '<span class="alert">' . ENTRY_DATE_OF_BIRTH_TEXT . '</span>': ''); ?>
<br class="clearBoth" />
</fieldset>
<?php
  }
?>

<fieldset>
<legend><?php echo TABLE_HEADING_LOGIN_DETAILS; ?></legend>
<label class="inputLabel" for="email-address"><?php echo ENTRY_EMAIL_ADDRESS; ?></label>
<?php echo zen_draw_input_field('email_address', '', zen_set_field_length(TABLE_CUSTOMERS, 'customers_email_address', '40') . ' id="email-address"') . (zen_not_null(ENTRY_EMAIL_ADDRESS_TEXT) ? '<span class="alert">' . ENTRY_EMAIL_ADDRESS_TEXT . '</span>': ''); ?>
<br class="clearBoth" />

<?php
  if ($phpBB->phpBB['installed'] == true) {
?>
<label class="inputLabel" for="nickname"><?php echo ENTRY_NICK; ?></label>
<?php echo zen_draw_input_field('nick','','id="nickname"') . (zen_not_null(ENTRY_NICK_TEXT) ? '<span class="alert">' . ENTRY_NICK_TEXT . '</span>': ''); ?>
<br class="clearBoth" />
<?php
  }
?>

<label class="inputLabel" for="password-new"><?php echo ENTRY_PASSWORD; ?></label>
<?php echo zen_draw_password_field('password', '', zen_set_field_length(TABLE_CUSTOMERS, 'customers_password', '20') . ' id="password-new"') . (zen_not_null(ENTRY_PASSWORD_TEXT) ? '<span class="alert">' . ENTRY_PASSWORD_TEXT . '</span>': ''); ?>
<br class="clearBoth" />

<label class="inputLabel" for="password-confirm"><?php echo ENTRY_PASSWORD_CONFIRMATION; ?></label>
<?php echo zen_draw_password_field('confirmation', '', zen_set_field_length(TABLE_CUSTOMERS, 'customers_password', '20') . ' id="password-confirm"') . (zen_not_null(ENTRY_PASSWORD_CONFIRMATION_TEXT) ? '<span class="alert">' . ENTRY_PASSWORD_CONFIRMATION_TEXT . '</span>': ''); ?>
<br class="clearBoth" />
</fieldset>

<fieldset>
<legend><?php echo ENTRY_EMAIL_PREFERENCE; ?></legend>
<?php
  if (ACCOUNT_NEWSLETTER_STATUS != 0) {
?>
<?php echo zen_draw_checkbox_field('newsletter', '1', $newsletter, 'id="newsletter-checkbox"') . '<label class="checkboxLabel" for="newsletter-checkbox">' . ENTRY_NEWSLETTER . '</label>' . (zen_not_null(ENTRY_NEWSLETTER_TEXT) ? '<span class="alert">' . ENTRY_NEWSLETTER_TEXT . '</span>': ''); ?>
<br class="clearBoth" />
<?php } ?>

<?php echo zen_draw_radio_field('email_format', 'HTML', ($email_format == 'HTML' ? true : false),'id="email-format-html"') . '<label class="radioButtonLabel" for="email-format-html">' . ENTRY_EMAIL_HTML_DISPLAY . '</label>' .  zen_draw_radio_field('email_format', 'TEXT', ($email_format == 'TEXT' ? true : false), 'id="email-format-text"') . '<label class="radioButtonLabel" for="email-format-text">' . ENTRY_EMAIL_TEXT_DISPLAY . '</label>'; ?>
<br class="clearBoth" />
</fieldset>

<?php
  if (CUSTOMERS_REFERRAL_STATUS == 2) {
?>
<fieldset>

<legend><?php echo TABLE_HEADING_REFERRAL_DETAILS; ?></legend>
<label class="inputLabel" for="customers_referral"><?php echo ENTRY_CUSTOMERS_REFERRAL; ?></label>
<?php echo zen_draw_input_field('customers_referral', '', zen_set_field_length(TABLE_CUSTOMERS, 'customers_referral', '15') . ' id="customers_referral"'); ?>
<br class="clearBoth" />
</fieldset>
<?php } ?>

我想你是对的，这是一个需要自己检查的特殊情况

我将添加另一个函数来检查区域，然后有条件地检查EIN：

function check_ein() {
    if(form.elements["zone_id"] && form.elements["zone_id"] == 223){
        var ein = form.elements["ein"].value;
        if(ein.length < 9){
            error_message = "EIN is less than 9 characters";
            error = true;
        }
    }
}

比如：

function check_ein(min_length, min_message, select_message) {
    if(form.elements["zone_id"] && form.elements["zone_id"] == 223)
        makeSureEINIsRightLength();
}

更新：在下面添加了解决方案代码

您需要为EIN添加检查（我在国家/地区检查下面添加了它）：

到EIN字段的实际id。
谢谢。我在这方面有点生疏，我该如何实施？非常感谢您的快速回复。@cclark413我用更全面的解决方案更新了答案。我想我现在知道了如何实施，但是我认为该国家的变量zone_id=223不正确。有什么想法吗？这取决于表单的外观。您需要更改元素[“zone_id”]以检索您要查找的国家/地区代码的值。所以可能是它的元素[“country”]，我不知道，因为这里没有表单代码。我用表单代码更新了问题。非常感谢你的帮助。我真的很感激。这是和以前一样的代码。什么。。。很抱歉。我换了。再次表示感谢。Hey@immulatin对于之前第二部分中的错误代码表示抱歉。你能提供一些快速的见解吗？
function check_ein() {
    if(form.elements["zone_id"] && form.elements["zone_id"] == 223){
        var ein = form.elements["ein"].value;
        if(ein.length < 9){
            error_message = "EIN is less than 9 characters";
            error = true;
        }
    }
}

var ein = form.elements["ein"].value;