Description:
------------
When searching for an integer "0" in the in_array function that does not contain it as a value, the function always returns true

PHP 7.2.0RC3 (cli) (built: Sep 28 2017 16:28:14) ( NTS )
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Test script:
---------------
$arr = ['Car', 'Images'];
$key = 0;

echo (string)in_array($key, $arr);
// Returned: 1

OR

$arr = ['Car', 'Images'];
$key = 1;

echo (string)in_array($key, $arr);
// Returned: 0