note 100300 deleted from function.is-string by danbrown

Note Submitter: Anonymous ---- Actually, the reason for the difference in son9ne's examples is this: Through PHP's loose typing an empty string is both int 0 & boolean false. Switch on string is rendering the empty string to false, so the switch matches the false of is_array() not the true of is_string() !!! Also, through loose typing a string without leading non-zero numbers is both int 0 & boolean true (oddly enough, it is both true & false at the same time). But in the case of non-empty strings with no leading digits, switch works as expected rendering the numberless string to boolean true not int 0 false, so the switch matches the true of is_string() not the false of is_array() !!! $test = " "; var_dump((int) $test); var_dump((bool) $test); var_dump((bool) (int) $test); var_dump((bool) (bool) $test);