exampleConfig.xml

<?xml version="1.0" encoding="UTF-8" ?>
<log4php:configuration xmlns:log4php="http://logging.apache.org/log4php/" threshold="all">
    <appender name="MyAMQPAppender" class="LoggerAppenderAMQP">
        <param name="host" value="rabbitmq.lan" />
        <param name="port" value="5672" />
        <param name="vhost" value="my_vhost" />
        <param name="login" value="my_login" />
        <param name="password" value="my_password" />
        <param name="exchangeName" value="my_exchange" />
        <param name="routingKey" value="some_routing_key" />
        <param name="contentType" value="application/json" />
        <layout class="LoggerLayoutGelf" />
    </appender>
    <appender name="MyGraylog2Appender" class="LoggerAppenderGraylog2">
        <param name="host" value="192.168.1.123" />
        <param name="port" value="12201" />
        <layout class="LoggerLayoutGelf" />
    </appender>
    <logger name="MyLogger">
        <level value="DEBUG" />
        <appender_ref ref="MyAMQPAppender" />
        <appender_ref ref="MyGraylog2Appender" />
    </logger>
</log4php:configuration>