Description:
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When register_shutdown_function is called with a function that expects a certain number of parameters, and a different number are given, a very unhelpful warning is printed:

Warning: (null)() expects exactly 1 parameter, 0 given in Unknown on line 0

This can take slightly different forms:

Warning: (null)() expects at least 2 parameters, 1 given in Unknown on line 0

or on a different server:

Warning: Wrong parameter count for (null)() in Unknown on line 0

Test script:
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<?php register_shutdown_function('explode'); ?>

Expected result:
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I expect to be given the correct function name, filename, and line number in the warning.

Actual result:
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I am given useless information for function name, filename, and line number.