PHP rgpost函数代码示例

 public static function maybe_deploy()
 {
     global $gfpdfe_data;
     /*
      * Check if we have a 'direct' method, that the software isn't fully installed and we aren't trying to manually initialise
      */
     if ($gfpdfe_data->automated === true && $gfpdfe_data->is_initialised === false && !rgpost('upgrade') && get_option('gfpdfe_automated_install') != 'installing') {
         /*
          * Initialise all multisites if a super admin is logged in
          */
         if (is_multisite() && is_super_admin()) {
             $results = GFPDF_InstallUpdater::run_multisite_deployment(array('GFPDF_InstallUpdater', 'do_deploy'));
             if ($results === true) {
                 add_action($gfpdfe_data->notice_type, array('GFPDF_Notices', 'gf_pdf_network_deploy_success'));
             } elseif ($results === false) {
                 add_action($gfpdfe_data->notice_type, array('GFPDF_Notices', 'gf_pdf_auto_deploy_network_failure'));
             }
             return $results;
         } else {
             if (self::do_deploy()) {
                 /*
                  * Output successfull automated installation message
                  */
                 add_action($gfpdfe_data->notice_type, array('GFPDF_Notices', 'gf_pdf_auto_deploy_success'));
             }
         }
     }
 }

/**
 * [gf_notification_attachment_save description]
 * @param  array $notification
 * @param  array $form
 * @return array
 */
function gf_notification_attachment_save($notification, $form)
{
    if (function_exists('rgpost')) {
        $notification["attachment_id"] = rgpost("gform_notification_attachment_id");
    }
    return $notification;
}

 public function get_value_submission($field_values, $get_from_post_global_var = true)
 {
     $parameter_values = GFFormsModel::get_parameter_value($this->inputName, $field_values, $this);
     if (!empty($parameter_values) && !is_array($parameter_values)) {
         $parameter_values = explode(',', $parameter_values);
     }
     if (!is_array($this->inputs)) {
         return '';
     }
     $choice_index = 0;
     $value = array();
     foreach ($this->inputs as $input) {
         if (!empty($_POST['is_submit_' . $this->formId]) && $get_from_post_global_var) {
             $input_value = rgpost('input_' . str_replace('.', '_', strval($input['id'])));
             if (is_array($input_value)) {
                 $input_value = '';
             }
             $value[strval($input['id'])] = $input_value;
         } else {
             if (is_array($parameter_values)) {
                 foreach ($parameter_values as $item) {
                     $item = trim($item);
                     if (GFFormsModel::choice_value_match($this, $this->choices[$choice_index], $item)) {
                         $value[$input['id'] . ''] = $item;
                         break;
                     }
                 }
             }
         }
         $choice_index++;
     }
     return $value;
 }

function reject_urls_in_textarea($validation_result)
{
    // Get the form object from the validation result
    $form = $validation_result["form"];
    //Loop through the form fields
    foreach ($form['fields'] as &$field) {
        if ($field["type"] == 'textarea') {
            // Get the submitted value from the $_POST
            $field_value = rgpost("input_{$field['id']}");
            $pattern = '#[-a-zA-Z0-9@:%_\\+.~\\#?&//=]{2,256}\\.[a-z]{2,4}\\b(\\/[-a-zA-Z0-9@:%_\\+.~\\#?&//=]*)?#si';
            if (preg_match_all($pattern, $field_value)) {
                //Fail the validation for the entire form
                $validation_result['is_valid'] = false;
                //Mark the specific field that failed and add a custom validation message
                $field['failed_validation'] = true;
                $field['validation_message'] = 'Urls [Links] or [Emails] are not allowed in this field.';
                //Assign our modified $form object back to the validation result
                $validation_result['form'] = $form;
            } else {
                //Huston we are a go!
                continue;
            }
        } else {
            //!textarea
            continue;
        }
    }
    //Return validated result
    return $validation_result;
}

 public function get_field_input($form, $value = '', $entry = null)
 {
     $is_entry_detail = $this->is_entry_detail();
     $is_form_editor = $this->is_form_editor();
     if (is_array($value)) {
         $value = array_values($value);
     }
     $form_id = $form['id'];
     $id = intval($this->id);
     $field_id = $is_entry_detail || $is_form_editor || $form_id == 0 ? "input_{$id}" : 'input_' . $form_id . "_{$id}";
     $form_id = ($is_entry_detail || $is_form_editor) && empty($form_id) ? rgget('id') : $form_id;
     $size = $this->size;
     $disabled_text = $is_form_editor ? "disabled='disabled'" : '';
     $class_suffix = $is_entry_detail ? '_admin' : '';
     $class = $this->emailConfirmEnabled ? '' : $size . $class_suffix;
     //Size only applies when confirmation is disabled
     $form_sub_label_placement = rgar($form, 'subLabelPlacement');
     $field_sub_label_placement = $this->subLabelPlacement;
     $is_sub_label_above = $field_sub_label_placement == 'above' || empty($field_sub_label_placement) && $form_sub_label_placement == 'above';
     $sub_label_class_attribute = $field_sub_label_placement == 'hidden_label' ? "class='hidden_sub_label'" : '';
     $html_input_type = RGFormsModel::is_html5_enabled() ? 'email' : 'text';
     $enter_email_field_input = GFFormsModel::get_input($this, $this->id . '');
     $confirm_field_input = GFFormsModel::get_input($this, $this->id . '.2');
     $enter_email_label = rgar($enter_email_field_input, 'customLabel') != '' ? $enter_email_field_input['customLabel'] : __('Enter Email', 'gravityforms');
     $enter_email_label = apply_filters("gform_email_{$form_id}", apply_filters('gform_email', $enter_email_label, $form_id), $form_id);
     $confirm_email_label = rgar($confirm_field_input, 'customLabel') != '' ? $confirm_field_input['customLabel'] : __('Confirm Email', 'gravityforms');
     $confirm_email_label = apply_filters("gform_email_confirm_{$form_id}", apply_filters('gform_email_confirm', $confirm_email_label, $form_id), $form_id);
     $single_placeholder_attribute = $this->get_field_placeholder_attribute();
     $enter_email_placeholder_attribute = $this->get_input_placeholder_attribute($enter_email_field_input);
     $confirm_email_placeholder_attribute = $this->get_input_placeholder_attribute($confirm_field_input);
     if ($is_form_editor) {
         $single_style = $this->emailConfirmEnabled ? "style='display:none;'" : '';
         $confirm_style = $this->emailConfirmEnabled ? '' : "style='display:none;'";
         if ($is_sub_label_above) {
             return "<div class='ginput_container ginput_single_email' {$single_style}>\n                            <input name='input_{$id}' type='{$html_input_type}' class='" . esc_attr($class) . "' disabled='disabled' {$single_placeholder_attribute} />\n                            <div class='gf_clear gf_clear_complex'></div>\n                        </div>\n                        <div class='ginput_complex ginput_container ginput_confirm_email' {$confirm_style} id='{$field_id}_container'>\n                            <span id='{$field_id}_container' class='ginput_left'>\n                                <label for='{$field_id}' {$sub_label_class_attribute}>{$enter_email_label}</label>\n                                <input class='{$class}' type='text' name='input_{$id}' id='{$field_id}' disabled='disabled' {$enter_email_placeholder_attribute}/>\n                            </span>\n                            <span id='{$field_id}_2_container' class='ginput_right'>\n                                <label for='{$field_id}_2' {$sub_label_class_attribute}>{$confirm_email_label}</label>\n                                <input class='{$class}' type='text' name='input_{$id}_2' id='{$field_id}_2' disabled='disabled' {$confirm_email_placeholder_attribute}/>\n                            </span>\n                            <div class='gf_clear gf_clear_complex'></div>\n                        </div>";
         } else {
             return "<div class='ginput_container ginput_single_email' {$single_style}>\n                            <input class='{$class}' name='input_{$id}' type='{$html_input_type}' class='" . esc_attr($class) . "' disabled='disabled' {$single_placeholder_attribute}/>\n                            <div class='gf_clear gf_clear_complex'></div>\n                        </div>\n                        <div class='ginput_complex ginput_container ginput_confirm_email' {$confirm_style} id='{$field_id}_container'>\n                            <span id='{$field_id}_container' class='ginput_left'>\n                                <input class='{$class}' type='text' name='input_{$id}' id='{$field_id}' disabled='disabled' {$enter_email_placeholder_attribute}/>\n                                <label for='{$field_id}' {$sub_label_class_attribute}>{$enter_email_label}</label>\n                            </span>\n                            <span id='{$field_id}_2_container' class='ginput_right'>\n                                <input class='{$class}' type='text' name='input_{$id}_2' id='{$field_id}_2' disabled='disabled' {$confirm_email_placeholder_attribute}/>\n                                <label for='{$field_id}_2' {$sub_label_class_attribute}>{$confirm_email_label}</label>\n                            </span>\n                            <div class='gf_clear gf_clear_complex'></div>\n                        </div>";
         }
     } else {
         $logic_event = $this->get_conditional_logic_event('keyup');
         if ($this->emailConfirmEnabled && !$is_entry_detail) {
             $first_tabindex = $this->get_tabindex();
             $last_tabindex = $this->get_tabindex();
             $email_value = is_array($value) ? esc_attr($value[0]) : $value;
             $confirmation_value = is_array($value) ? esc_attr($value[1]) : rgpost('input_' . $this->id . '_2');
             $confirmation_disabled = $is_entry_detail ? "disabled='disabled'" : $disabled_text;
             if ($is_sub_label_above) {
                 return "<div class='ginput_complex ginput_container' id='{$field_id}_container'>\n                                <span id='{$field_id}_container' class='ginput_left'>\n                                    <label for='{$field_id}'>" . $enter_email_label . "</label>\n                                    <input class='{$class}' type='{$html_input_type}' name='input_{$id}' id='{$field_id}' value='" . $email_value . "' {$first_tabindex} {$logic_event} {$disabled_text} {$enter_email_placeholder_attribute}/>\n                                </span>\n                                <span id='{$field_id}_2_container' class='ginput_right'>\n                                    <label for='{$field_id}_2' {$sub_label_class_attribute}>{$confirm_email_label}</label>\n                                    <input class='{$class}' type='{$html_input_type}' name='input_{$id}_2' id='{$field_id}_2' value='" . $confirmation_value . "' {$last_tabindex} {$confirmation_disabled} {$confirm_email_placeholder_attribute}/>\n                                </span>\n                                <div class='gf_clear gf_clear_complex'></div>\n                            </div>";
             } else {
                 return "<div class='ginput_complex ginput_container' id='{$field_id}_container'>\n                                <span id='{$field_id}_container' class='ginput_left'>\n                                    <input class='{$class}' type='{$html_input_type}' name='input_{$id}' id='{$field_id}' value='" . $email_value . "' {$first_tabindex} {$logic_event} {$disabled_text} {$enter_email_placeholder_attribute}/>\n                                    <label for='{$field_id}' {$sub_label_class_attribute}>{$enter_email_label}</label>\n                                </span>\n                                <span id='{$field_id}_2_container' class='ginput_right'>\n                                    <input class='{$class}' type='{$html_input_type}' name='input_{$id}_2' id='{$field_id}_2' value='" . $confirmation_value . "' {$last_tabindex} {$confirmation_disabled} {$confirm_email_placeholder_attribute}/>\n                                    <label for='{$field_id}_2' {$sub_label_class_attribute}>{$confirm_email_label}</label>\n                                </span>\n                                <div class='gf_clear gf_clear_complex'></div>\n                            </div>";
             }
         } else {
             $tabindex = $this->get_tabindex();
             $value = esc_attr($value);
             $class = esc_attr($class);
             return "<div class='ginput_container'>\n                            <input name='input_{$id}' id='{$field_id}' type='{$html_input_type}' value='{$value}' class='{$class}' {$tabindex} {$logic_event} {$disabled_text} {$single_placeholder_attribute}/>\n                        </div>";
         }
     }
 }

 public function validate_recaptcha()
 {
     // when user clicks on the "I'm not a robot" box, the response token is populated into a hidden field by Google, get token from POST
     $response_token = rgpost('g-recaptcha-response');
     $is_valid = $this->verify_recaptcha_response($response_token);
     if (!$is_valid) {
         $this->failed_validation = true;
         $this->validation_message = empty($this->errorMessage) ? __('The reCAPTCHA was invalid. Go back and try it again.', 'gravityforms') : $this->errorMessage;
     }
 }

function jbl_save_gform_notification_settings($notification, $form)
{
    if (isset($_POST['jbl_gfuaa_enable'])) {
        $notification['jbl_gfuaa_enable'] = rgpost('jbl_gfuaa_enable');
    }
    if (isset($_POST['jbl_gfuaa_delete_files_after'])) {
        $notification['jbl_gfuaa_delete_files_after'] = rgpost('jbl_gfuaa_delete_files_after');
    }
    return $notification;
}

 function validate($value, $form)
 {
     if ($this->isRequired && $this->nameFormat != 'simple') {
         $first = rgpost('input_' . $this->id . '_3');
         $last = rgpost('input_' . $this->id . '_6');
         if (empty($first) && !$this->get_input_property('3', 'isHidden') || empty($last) && !$this->get_input_property('6', 'isHidden')) {
             $this->failed_validation = true;
             $this->validation_message = empty($this->errorMessage) ? esc_html__('This field is required. Please enter the first and last name.', 'gravityforms') : $this->errorMessage;
         }
     }
 }

 public function validate_recaptcha()
 {
     // when user clicks on the "I'm not a robot" box, the response token is populated into a hidden field by Google, get token from POST
     $response_token = rgpost('g-recaptcha-response');
     $is_valid = $this->verify_recaptcha_response($response_token);
     if (!$is_valid) {
         $this->failed_validation = true;
         $this->validation_message = empty($this->errorMessage) ? __('The reCAPTCHA was invalid. Go back and try it again.', 'gravityforms') : $this->errorMessage;
         $error_message = is_wp_error($response) ? $response->get_error_message() : '';
         GFCommon::log_debug(__METHOD__ . ' - Validating the reCAPTCHA response has failed due to the following: ' . $error_message);
     }
 }

 public function is_value_submission_empty($form_id)
 {
     $value = rgpost('input_' . $this->id);
     if (is_array($value)) {
         // Date field and date drop-downs
         foreach ($value as $input) {
             if (strlen(trim($input)) <= 0) {
                 return true;
             }
         }
         return false;
     } else {
         // Date picker
         return strlen(trim($value)) <= 0;
     }
 }

 /**
  * Returns the fields inner markup.
  *
  * @param array $form The form object currently being processed.
  * @param string $value The field value from the $_POST or the resumed incomplete submission. Not currently used.
  * @param null $entry
  *
  * @return string
  */
 public function get_field_input($form, $value = '', $entry = null)
 {
     $form_id = $form['id'];
     $is_entry_detail = $this->is_entry_detail();
     $id = (int) $this->id;
     if ($is_entry_detail) {
         $input = "<input type='hidden' id='input_{$id}' name='input_{$id}' value='{$value}' />";
         return $input . '<br/>' . esc_html__('Coupon fields are not editable', 'gravityformscoupons');
     }
     $disabled_text = $this->is_form_editor() ? 'disabled="disabled"' : '';
     $logic_event = $this->get_conditional_logic_event('change');
     $placeholder_attribute = $this->get_field_placeholder_attribute();
     $coupons_detail = rgpost("gf_coupons_{$form_id}");
     $coupon_codes = empty($coupons_detail) ? '' : rgpost("input_{$id}");
     $input = "<div class='ginput_container' id='gf_coupons_container_{$form_id}'>" . "<input id='gf_coupon_code_{$form_id}' class='gf_coupon_code' onkeyup='DisableApplyButton({$form_id});' onchange='DisableApplyButton({$form_id});' onpaste='setTimeout(function(){DisableApplyButton({$form_id});}, 50);' type='text'  {$disabled_text} {$placeholder_attribute} " . $this->get_tabindex() . '/>' . "<input type='button' disabled='disabled' onclick='ApplyCouponCode({$form_id});' value='" . esc_attr__('Apply', 'gravityformscoupons') . "' id='gf_coupon_button' class='button' {$disabled_text} " . $this->get_tabindex() . '/> ' . "<img style='display:none;' id='gf_coupon_spinner' src='" . gf_coupons()->get_base_url() . "/images/spinner.gif' alt='" . esc_attr__('please wait', 'gravityformscoupons') . "'/>" . "<div id='gf_coupon_info'></div>" . "<input type='hidden' id='gf_coupon_codes_{$form_id}' name='input_{$id}' value='" . esc_attr($coupon_codes) . "' {$logic_event} />" . "<input type='hidden' id='gf_total_no_discount_{$form_id}'/>" . "<input type='hidden' id='gf_coupons_{$form_id}' name='gf_coupons_{$form_id}' value='" . esc_attr($coupons_detail) . "' />" . "</div>";
     return $input;
 }

 protected function run_setting_routing()
 {
     global $gfpdfe_data;
     /* 
      * Check if we need to redeploy default PDF templates/styles to the theme folder 
      */
     if (rgpost("gfpdf_deploy") && (wp_verify_nonce(PDF_Common::post('gfpdf_deploy_nonce'), 'gfpdf_deploy_nonce_action') || wp_verify_nonce(PDF_Common::get('_wpnonce'), 'pdf-extended-filesystem'))) {
         /*
          * Check if the user wants to upgrade the system or only initialise the fonts
          */
         if (PDF_Common::post('font-initialise')) {
             /*
              * We only want to reinitialise the font files and configuration
              */
             if (GFPDF_InstallUpdater::initialise_fonts() === false) {
                 return true;
             }
         } else {
             if (rgpost('upgrade')) {
                 /* 
                  * Deploy new template styles 
                  * If we get false returned Wordpress is trying to get 
                  * access details to update files so don't display anything.
                  */
                 if (self::deploy() === 'false') {
                     return true;
                 }
             }
         }
     }
     /*
      * Check if we need to sync the theme folders because a user changes theme
      * Sniff the _wpnonce values to determine this.
      */
     if (isset($_GET['_wpnonce'])) {
         /*
          * Check if we want to copy the theme files
          */
         if ((is_dir($gfpdfe_data->old_template_location) || is_dir($gfpdfe_data->old_3_6_template_site_location)) && wp_verify_nonce(PDF_Common::get('_wpnonce'), 'gfpdfe_migrate')) {
             if (GFPDF_InstallUpdater::run_template_migration() === 'false') {
                 return true;
             }
         }
     }
 }

 public function get_field_input($form, $value = '', $entry = null)
 {
     if (is_array($value)) {
         $value = array_values($value);
     }
     $form_id = $form['id'];
     $is_entry_detail = $this->is_entry_detail();
     $is_form_editor = $this->is_form_editor();
     $is_admin = $is_entry_detail || $is_form_editor;
     $id = (int) $this->id;
     $field_id = $is_entry_detail || $is_form_editor || $form_id == 0 ? "input_{$id}" : 'input_' . $form_id . "_{$id}";
     $class_suffix = $is_entry_detail ? '_admin' : '';
     $form_sub_label_placement = rgar($form, 'subLabelPlacement');
     $field_sub_label_placement = $this->subLabelPlacement;
     $is_sub_label_above = $field_sub_label_placement == 'above' || empty($field_sub_label_placement) && $form_sub_label_placement == 'above';
     $sub_label_class_attribute = $field_sub_label_placement == 'hidden_label' ? "class='hidden_sub_label screen-reader-text'" : '';
     $disabled_text = $is_form_editor ? 'disabled="disabled"' : '';
     $first_tabindex = $this->get_tabindex();
     $last_tabindex = $this->get_tabindex();
     $strength_style = !$this->passwordStrengthEnabled ? "style='display:none;'" : '';
     $strength_indicator_label = esc_html__('Strength indicator', 'gravityforms');
     $strength = $this->passwordStrengthEnabled || $is_admin ? "<div id='{$field_id}_strength_indicator' class='gfield_password_strength' {$strength_style}>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t{$strength_indicator_label}\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t</div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<input type='hidden' class='gform_hidden' id='{$field_id}_strength' name='input_{$id}_strength' />" : '';
     $action = !$is_admin ? "gformShowPasswordStrength(\"{$field_id}\");" : '';
     $onchange = $this->passwordStrengthEnabled ? "onchange='{$action}'" : '';
     $onkeyup = $this->passwordStrengthEnabled ? "onkeyup='{$action}'" : '';
     $confirmation_value = rgpost('input_' . $id . '_2');
     $password_value = is_array($value) ? $value[0] : $value;
     $password_value = esc_attr($password_value);
     $confirmation_value = esc_attr($confirmation_value);
     $enter_password_field_input = GFFormsModel::get_input($this, $this->id . '');
     $confirm_password_field_input = GFFormsModel::get_input($this, $this->id . '.2');
     $enter_password_label = rgar($enter_password_field_input, 'customLabel') != '' ? $enter_password_field_input['customLabel'] : esc_html__('Enter Password', 'gravityforms');
     $enter_password_label = gf_apply_filters(array('gform_password', $form_id), $enter_password_label, $form_id);
     $confirm_password_label = rgar($confirm_password_field_input, 'customLabel') != '' ? $confirm_password_field_input['customLabel'] : esc_html__('Confirm Password', 'gravityforms');
     $confirm_password_label = gf_apply_filters(array('gform_password_confirm', $form_id), $confirm_password_label, $form_id);
     $required_attribute = $this->isRequired ? 'aria-required="true"' : '';
     $invalid_attribute = $this->failed_validation ? 'aria-invalid="true"' : 'aria-invalid="false"';
     $enter_password_placeholder_attribute = GFCommon::get_input_placeholder_attribute($enter_password_field_input);
     $confirm_password_placeholder_attribute = GFCommon::get_input_placeholder_attribute($confirm_password_field_input);
     if ($is_sub_label_above) {
         return "<div class='ginput_complex{$class_suffix} ginput_container ginput_container_password' id='{$field_id}_container'>\n\t\t\t\t\t<span id='{$field_id}_1_container' class='ginput_left'>\n\t\t\t\t\t\t<label for='{$field_id}' {$sub_label_class_attribute}>{$enter_password_label}</label>\n\t\t\t\t\t\t<input type='password' name='input_{$id}' id='{$field_id}' {$onkeyup} {$onchange} value='{$password_value}' {$first_tabindex} {$enter_password_placeholder_attribute} {$required_attribute} {$invalid_attribute} {$disabled_text}/>\n\t\t\t\t\t</span>\n\t\t\t\t\t<span id='{$field_id}_2_container' class='ginput_right'>\n\t\t\t\t\t\t<label for='{$field_id}_2' {$sub_label_class_attribute}>{$confirm_password_label}</label>\n\t\t\t\t\t\t<input type='password' name='input_{$id}_2' id='{$field_id}_2' {$onkeyup} {$onchange} value='{$confirmation_value}' {$last_tabindex} {$confirm_password_placeholder_attribute} {$required_attribute} {$invalid_attribute} {$disabled_text}/>\n\t\t\t\t\t</span>\n\t\t\t\t\t<div class='gf_clear gf_clear_complex'></div>\n\t\t\t\t</div>{$strength}";
     } else {
         return "<div class='ginput_complex{$class_suffix} ginput_container ginput_container_password' id='{$field_id}_container'>\n\t\t\t\t\t<span id='{$field_id}_1_container' class='ginput_left'>\n\t\t\t\t\t\t<input type='password' name='input_{$id}' id='{$field_id}' {$onkeyup} {$onchange} value='{$password_value}' {$first_tabindex} {$enter_password_placeholder_attribute} {$required_attribute} {$invalid_attribute} {$disabled_text}/>\n\t\t\t\t\t\t<label for='{$field_id}' {$sub_label_class_attribute}>{$enter_password_label}</label>\n\t\t\t\t\t</span>\n\t\t\t\t\t<span id='{$field_id}_2_container' class='ginput_right'>\n\t\t\t\t\t\t<input type='password' name='input_{$id}_2' id='{$field_id}_2' {$onkeyup} {$onchange} value='{$confirmation_value}' {$last_tabindex} {$confirm_password_placeholder_attribute} {$required_attribute} {$invalid_attribute} {$disabled_text}/>\n\t\t\t\t\t\t<label for='{$field_id}_2' {$sub_label_class_attribute}>{$confirm_password_label}</label>\n\t\t\t\t\t</span>\n\t\t\t\t\t<div class='gf_clear gf_clear_complex'></div>\n\t\t\t\t</div>{$strength}";
     }
 }

 public static function maybe_export()
 {
     if (isset($_POST['export_lead'])) {
         check_admin_referer('rg_start_export', 'rg_start_export_nonce');
         //see if any fields chosen
         if (empty($_POST['export_field'])) {
             GFCommon::add_error_message(__('Please select the fields to be exported', 'gravityforms'));
             return;
         }
         $form_id = $_POST['export_form'];
         $form = RGFormsModel::get_form_meta($form_id);
         $filename = sanitize_title_with_dashes($form['title']) . '-' . gmdate('Y-m-d', GFCommon::get_local_timestamp(time())) . '.csv';
         $charset = get_option('blog_charset');
         header('Content-Description: File Transfer');
         header("Content-Disposition: attachment; filename={$filename}");
         header('Content-Type: text/csv; charset=' . $charset, true);
         $buffer_length = ob_get_length();
         //length or false if no buffer
         if ($buffer_length > 1) {
             ob_clean();
         }
         GFExport::start_export($form);
         die;
     } else {
         if (isset($_POST['export_forms'])) {
             check_admin_referer('gf_export_forms', 'gf_export_forms_nonce');
             $selected_forms = rgpost('gf_form_id');
             if (empty($selected_forms)) {
                 GFCommon::add_error_message(__('Please select the forms to be exported', 'gravityforms'));
                 return;
             }
             $forms = RGFormsModel::get_form_meta_by_id($selected_forms);
             $forms = self::prepare_forms_for_export($forms);
             $forms['version'] = GFForms::$version;
             $forms_json = json_encode($forms);
             $filename = 'gravityforms-export-' . date('Y-m-d') . '.json';
             header('Content-Description: File Transfer');
             header("Content-Disposition: attachment; filename={$filename}");
             header('Content-Type: application/json; charset=' . get_option('blog_charset'), true);
             echo $forms_json;
             die;
         }
     }
 }

 /**
  * Validate the given BSN number
  */
 function ecs_gform_add_bsn_validation($validation_result)
 {
     foreach ($validation_result['form']['fields'] as &$field) {
         $field_value = rgpost("input_{$field['id']}");
         if ('bsn' == $field['inputMaskValue']) {
             if (0 == strlen($field_value)) {
                 // If empty dont check, when the field is required GF will automaticly catch that before us.
                 continue;
             } else {
                 if (!ecs_validate_bsn($field_value)) {
                     $validation_result['is_valid'] = false;
                     $field['failed_validation'] = true;
                     $field['validation_message'] = __('Please enter a valid value.', 'gravityforms');
                 }
             }
         }
     }
     return $validation_result;
 }