How should PHP developers handle errors like "Call to a member function createTemplate() on a non-object" when working with Smarty in separate classes?

When working with Smarty in separate classes, PHP developers can encounter errors like "Call to a member function createTemplate() on a non-object" when trying to access Smarty methods from within a class. This error typically occurs when the Smarty object is not properly instantiated or passed to the class. To solve this issue, developers should ensure that the Smarty object is created and passed to the class constructor or method where it is needed. 

class TemplateHandler {
    private $smarty;

    public function __construct($smarty) {
        $this->smarty = $smarty;
    }

    public function renderTemplate($templateName, $data) {
        $this->smarty->assign($data);
        return $this->smarty->fetch($templateName);
    }
}

// Instantiate Smarty object
$smarty = new Smarty();

// Instantiate TemplateHandler class with Smarty object
$templateHandler = new TemplateHandler($smarty);

// Example usage
$templateName = 'template.tpl';
$data = array('name' => 'John Doe', 'age' => 30);
$output = $templateHandler->renderTemplate($templateName, $data);

echo $output;

Keywords

PHP Smarty error handling createTemplate() separate classes

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