Joomla 3 $ params-> get在模块中返回NULL值

Question

I am writing a new module for Joomla! 3 and I am stumped by $params->get.

I can see the values in the database within the modules table, but the following code returns nothing for every parameter that have been set, including the default parameters of module_tag, bootstrap_size, header_tag, header_class, style.

The code is:

$app = JFactory::getApplication();
$params = $app->getParams();
$param = $params->get('module_tag');

When looking at the type of the variable $param, the type is retuned as NULL.

Joomla! 3.6.2
Stable PHP 5.6.18
MySQL 5.6.31

Answer 1

You have to specify the module name of which you would like to retrieve the parameters. Replace 'moduleName' with the name of your module.

$app = JFactory::getApplication();
$params = $app->getParams('moduleName');
$param = $params->get('module_tag');