发布于 2015-10-07 09:54:51 | 159 次阅读 | 评论: 0 | 来源: 网络整理
一个Filter对象阻塞一个消息被写入到日志.
要在所有writer之前过滤消息,你可以使用addFilter()方法添加任意数量的Filter到Log对象:
$logger = new Zend_Log();
$writer = new Zend_Log_Writer_Stream('php://output');
$logger->addWriter($writer);
$filter = new Zend_Log_Filter_Priority(Zend_Log::CRIT);
$logger->addFilter($filter);
// blocked
$logger->info('Informational message');
// logged
$logger->emerg('Emergency message');
当你添加一个或多个Filter到Log对象后,消息在任何Writer接收之前必须通过所有的Filter.
要在一个特定的Writer上进行消息过滤,使用该Writer对象的addFilter()方法:
$logger = new Zend_Log();
$writer1 = new Zend_Log_Writer_Stream('/path/to/first/logfile');
$logger->addWriter($writer1);
$writer2 = new Zend_Log_Writer_Stream('/path/to/second/logfile');
$logger->addWriter($writer2);
// add a filter only to writer2
$filter = new Zend_Log_Filter_Priority(Zend_Log::CRIT);
$writer2->addFilter($filter);
// logged to writer1, blocked from writer2
$logger->info('Informational message');
// logged by both writers
$logger->emerg('Emergency message');