Description:
------------
The next code:

<?php
$a["x"];//should trigger notice
var_dump(error_get_last());//return the error array
?>

runs perfectly and returns an error array.
 but when I use set_error_handler it returns null
<?php
function _do_something(){}
set_error_handler('_do_something');

$a["x"];//should trigger notice
var_dump(error_get_last());//return null
?>

This code works perfectly on PHP5.4 I had changed 3 month ago to PHP7 and since then I am getting nulls in error_get_last() I am using a shutdown function to check if an error has occured and if so to send it to the developer.

The Problem exists in all type of errors notice,warning,error,fatal


Test script:
---------------
function _do_something(){}
set_error_handler('_do_something');

$a["x"];//should trigger notice
var_dump(error_get_last());//return null

Expected result:
----------------
I expect to get an array of the error, like in php 5.*


Actual result:
--------------
I am getting null instead of an array