本文整理汇总了PHP中JControllerLegacy::instance方法的典型用法代码示例。如果您正苦于以下问题：PHP JControllerLegacy::instance方法的具体用法？PHP JControllerLegacy::instance怎么用？PHP JControllerLegacy::instance使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类JControllerLegacy的用法示例。
在下文中一共展示了JControllerLegacy::instance方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的PHP代码示例。
示例1: getInstance
/**
* Method to get a singleton controller instance.
*
* @param string $prefix The prefix for the controller.
* @param array $config An array of optional constructor options.
*
* @return JControllerLegacy
*
* @since 12.2
* @throws Exception if the controller cannot be loaded.
*/
public static function getInstance($prefix, $config = array())
{
if (is_object(self::$instance)) {
return self::$instance;
}
$input = JFactory::getApplication()->input;
// Get the environment configuration.
$basePath = array_key_exists('base_path', $config) ? $config['base_path'] : JPATH_COMPONENT;
$format = $input->getWord('format');
$command = $input->get('task', 'display');
// Check for array format.
$filter = JFilterInput::getInstance();
if (is_array($command)) {
$command = $filter->clean(array_pop(array_keys($command)), 'cmd');
} else {
$command = $filter->clean($command, 'cmd');
}
// Check for a controller.task command.
if (strpos($command, '.') !== false) {
// Explode the controller.task command.
list($type, $task) = explode('.', $command);
// Define the controller filename and path.
$file = self::createFileName('controller', array('name' => $type, 'format' => $format));
$path = $basePath . '/controllers/' . $file;
// Reset the task without the controller context.
$input->set('task', $task);
} else {
// Base controller.
$type = null;
$task = $command;
// Define the controller filename and path.
$file = self::createFileName('controller', array('name' => 'controller', 'format' => $format));
$path = $basePath . '/' . $file;
$backupfile = self::createFileName('controller', array('name' => 'controller'));
$backuppath = $basePath . '/' . $backupfile;
}
// Get the controller class name.
$class = ucfirst($prefix) . 'Controller' . ucfirst($type);
// Include the class if not present.
if (!class_exists($class)) {
// If the controller file path exists, include it.
if (file_exists($path)) {
require_once $path;
} elseif (isset($backuppath) && file_exists($backuppath)) {
require_once $backuppath;
} else {
throw new InvalidArgumentException(JText::sprintf('JLIB_APPLICATION_ERROR_INVALID_CONTROLLER', $type, $format));
}
}
// Instantiate the class.
if (class_exists($class)) {
self::$instance = new $class($config);
} else {
throw new InvalidArgumentException(JText::sprintf('JLIB_APPLICATION_ERROR_INVALID_CONTROLLER_CLASS', $class));
}
return self::$instance;
}