Description:
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This script apparently fails since PHP version 4.4.9 or earlier (tested using http://sandbox.onlinephpfunctions.com/)



Test script:
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<?php
function check(&$value) {}

$a = array();
check($a['b']);
echo count($a); // should be 0, but is 1
print_r($a); // $a should be [], but is ['b' => NULL]

Expected result:
----------------
see comments in script

Actual result:
--------------
see comments in script