(PHP 5, PHP 7)
php_user_filter::onClose — Called when closing the filter
This method is called upon filter shutdown (typically, this is also during stream shutdown), and is executed after the flush method is called. If any resources were allocated or initialized during onCreate() this would be the time to destroy or dispose of them.
锟剿猴拷锟斤拷没锟叫诧拷锟斤拷锟斤拷
Return value is ignored.