src/Airbrake/Client.php
public function notifyOnError($message, array $backtrace = null, $extraParams = null)
    {
        if (!$backtrace) {
            $backtrace = debug_backtrace();
            if (count($backtrace) > 1) {
                array_shift($backtrace);
            }
        }

        $notice = new Notice;
        $notice->load(array(
            'errorClass'   => 'PHP::Error',
            'backtrace'    => $backtrace,
            'errorMessage' => $message,
            'extraParameters'  => $extraParams,
        ));

        return $this->notify($notice);
    }
public function notifyOnError($message, array $backtrace = null, $extraParams = null)
    {
        if (!$backtrace) {
            $backtrace = debug_backtrace();
            if (count($backtrace) > 1) {
                array_shift($backtrace);
            }
        }

        $notice = new Notice;
        $notice->load(array(
            'errorClass'   => 'PHP::Error',
            'backtrace'    => $backtrace,
            'errorMessage' => $message,
            'extraParameters'  => $extraParams,
        ));

        return $this->notify($notice);
    }
Notify on an error message.

@param string $message
@param array $backtrace
@param null $extraParams
@return string