src/Monolog/Error.php
private function addParameterFallback($name, $fallbackData = null)
    {
        if (!isset($this->parameters[$name]) && !empty($fallbackData)) {
            $this->parameters[$name] = $fallbackData;
        }
    }
private function addParameterFallback($name, $fallbackData = null)
    {
        if (!isset($this->parameters[$name]) && !empty($fallbackData)) {
            $this->parameters[$name] = $fallbackData;
        }
    }
private function addParameterFallback ( $ name , $ fallbackData = null ) { if ( ! isset ( $ this -> parameters [ $ name ] ) && ! empty ( $ fallbackData ) ) { $ this -> parameters [ $ name ] = $ fallbackData ; } }
This will add fallback data to the parameters if the key is not set.

@param string $name
@param mixed $fallbackData
This will add fallback data to the parameters if the key is not set .