callback -> 
callback -> 
callback -> 
shutdown -> 
callback -> 
shutdown -> 
callback -> 
shutdown -> 
callback -> 
shutdown -> 
callback -> 
shutdown -> <br />
<b>Fatal error</b>:  Call to a member function method() on null in <b>D:\OpenServer\domains\darts\errlog.php</b> on line <b>15</b><br />

callback -> 
shutdown -> <br />
<b>Fatal error</b>:  Call to a member function method() on null in <b>D:\OpenServer\domains\darts\errlog.php</b> on line <b>56</b><br />

callback -> 
shutdown -> 2018-01-09 17:15:16	<br />
<b>Fatal error</b>:  Call to a member function method() on null in <b>D:\OpenServer\domains\darts\errlog.php</b> on line <b>56</b><br />

callback -> 
shutdown -> 2018-01-09 17:18:35	
callback -> 
shutdown -> 2018-01-09 17:19:59	
Fatal error:  Call to a member function method() on null in D:\OpenServer\domains\darts\errlog.php on line 56

callback -> 2018-01-09 17:22:26
Fatal error:  Call to a member function method() on null in D:\OpenServer\domains\darts\errlog.php on line 56
2018-01-09 17:24:47
Fatal error:  Call to a member function method() on null in D:\OpenServer\domains\darts\errlog.php on line 56