/**
* Render a string from the Messages library.
*
* @param string $templateName Name of template
* @param array $placeholderValuePairs Associative array of substitute values
*
* @return string
*/
protected function render($templateName, array $placeholderValuePairs)
{
$resultString = Messages::get($templateName);
foreach ($placeholderValuePairs as $placeholder => $value) {
$resultString = str_replace('{{ ' . $placeholder . ' }}', $value, $resultString);
}
return $resultString;
}