Description:
------------
From the php documentation for the min function "PHP will evaluate a non-numeric string as 0, but still return the string if it's seen as the numerically lowest value."

It seems that this is incorrect.  When a non-numeric string and a numeric string are passed in, the numeric string seems to be returned as the the min value.

Reproduce code:
---------------
<?php

echo min("a", "2");
echo "\n";
echo min("2", "a");
echo "\n";
echo min("a", "-2");
echo "\n";
echo min("-2", "a");

?>

Expected result:
----------------
a
a
-2
-2

Actual result:
--------------
2
2
-2
-2