(minor flaw, don't know if it's important, but maybe worth a check)

I registered a shutdown function via register_shutdown_function(). For debugging purposes and because echo() isn't functional in the shutdown function, I used error_log('my log message',0), so that the "error"-messages showed up in apache/logs/error_log.

The error_log()-call in "normal code" produced an entry in apache error_log with timestamp and error type, and the error_log()-call in my shutdown callback function appeared without timestamp and error type (see snippet below)

----
example PHP-code

function myshutdown () {
   error_log('myshutdown() executed',0);
}
	
register_shutdown_function('myshutdown');
error_log('myshutdown-function registered',0);

----
Apache logs/error_log snippet

[Fri Sep  8 11:43:43 2000] [notice] Apache/1.3.12 (Unix) PHP/4.0.2 configured -- resuming normal operations
[Fri Sep  8 11:43:52 2000] [error] myshutdown-function registered
myshutdown() executed