Description:
------------
although this is documented in the loose comparison section @ http://php.net/manual/en/types.comparisons.php, the failure of php to evaluate any string (loosely) against numeric 0 correctly is causing issues in 'in_array', and possibly some others(?).

I realise that the problem can be worked around with strict flags/syntax, but it seems odd that this bug can be allowed to survive?

Maybe its my understanding of the core thats flawed, and theres a perfectly good explanation as to why a string evaluates to true against numeric 0, but it feels properly broken to me.

many thanks.

Matt


Test script:
---------------
$array = array(
    'test',
    0
              );
              
var_dump(in_array('xxx', $array));

var_dump('test' == 0);

Expected result:
----------------
false

false

Actual result:
--------------
true

true