[PHP] set_error_handler() fails

I use set_error_handler() in my script but it fails and returns NULL indicating an error has happened. But there are no entries in error.log ore something similar. How can I find out what actually went wrong? PS: I use error_reporting(E_ALL) and init_set('display_errors', 'On') on PHP 5.1.3 -

Re: [PHP] set_error_handler() fails

Richard Lynch wrote: It's possible that you have mistaken whatever set_error_handler returns for "no previous error handler" for NULL... Are you using === NULL or is_null() to test? If not, I suspect it's really returning FALSE or '' and what you think is an error condition is, in fact, not an

Re: [PHP] set_error_handler() fails

chris smith wrote: What does your code look like? I just realized that when called a second time, set_error_handler() returns my custom error handler but it is never triggered. Code looks like this: '; trigger_error('test error'); var_dump(set_error_handler('core_error_han