Question

来自document：

state

您看到，该示例给出了变量定义，但没有给出函数定义。

我想在php文件中定义一个<?php use WHMCS\ClientArea; use WHMCS\Database\Capsule; define('CLIENTAREA', true); require __DIR__ . '/init.php'; $ca = new ClientArea(); $ca->setPageTitle('Your Page Title Goes Here'); $ca->addToBreadCrumb('index.php', Lang::trans('globalsystemname')); $ca->addToBreadCrumb('mypage.php', 'Your Custom Page Name'); $ca->initPage(); //$ca->requireLogin(); // Uncomment this line to require a login to access this page // To assign variables to the template system use the following syntax. // These can then be referenced using {$variablename} in the template. //$ca->assign('variablename', $value); // Check login status if ($ca->isLoggedIn()) { $clientName = Capsule::table('tblclients') ->where('id', '=', $ca->getUserID())->pluck('firstname'); // 'pluck' was renamed within WHMCS 7.0. Replace it with 'value' instead. // ->where('id', '=', $ca->getUserID())->value('firstname'); $ca->assign('clientname', $clientName); } else { $ca->assign('clientname', 'Random User'); } Menu::addContext(); Menu::primarySidebar('announcementList'); Menu::secondarySidebar('announcementList'); $ca->setTemplate('mypage'); $ca->output();，然后在模板中可以调用它。

但是我尝试使用function或其他方法，所有方法均无效。

Answer 1

有两种实现目标的方法：

，打开Allow Smarty PHP tag。那么您可以使用
```
{php}
    your_function();
{/php}
```
2。推荐的方法是，允许在WHMCS模板中使用其他自定义PHP逻辑，您可能需要结合使用钩子并在页面加载之前定义变量，例如

```

<?php
/**
 * Hook sample for defining additional template variables
 *
 * @param array $vars Existing defined template variables
 *
 * @return array
 */
function hook_template_variables_example($vars)
{
    $extraTemplateVariables = array();

    // set a fixed value
    $extraTemplateVariables['fixedValue'] = 'abc';

    // fetch clients data if available
    $clientsData = isset($vars['clientsdetails']) ? $vars['clientsdetails'] : null;

    // determine if client is logged in
    if (is_array($clientsData) && isset($clientsData['id'])) {
        $userId = $clientsData['id'];
        // perform calculation here
        $extraTemplateVariables['userSpecificValue'] = '123';
        $extraTemplateVariables['anotherUserOnlyValue'] = '456';
    }

    // return array of template variables to define
    return $extraTemplateVariables;
}

add_hook('ClientAreaPageViewTicket', 1, 'hook_template_variables_example');

```

如何定义一个模板函数，然后在模板中我可以调用它

1 个答案: