--TEST--
Bug #60738 Allow 'set_error_handler' to handle NULL
--FILE--
<?php

var_dump(set_error_handler(
    function() { echo 'Intercepted error!', "\n"; }
));

trigger_error('Error!');

var_dump(set_error_handler(null));

trigger_error('Error!');
?>
--EXPECTF--
NULL
Intercepted error!
object(Closure)#1 (0) {
}

Notice: Error! in %s on line %d