The problem is in the comparison operator, at least in *nixes.
$s may be logically false (== or !=) but they are not of the same value AND type, which, I believe, is what the === and !== operators are looking for.
Peter West
"...and whoever says, ‘You fool! ’ will be liable to the hell of fire"
> On 2 Mar 2015, at 6:31 pm, Umberto Salsi <salsi@xxxxxxxxxxxx> wrote:
>
> lists@xxxxxxxxx (Peter West) wrote:
>
>> When I try this in OS X 10.10 php 5.5.14 (I've added newlines to output)
>> $ php -a
>> ...
>> php > $f= fopen('.', 'r');
>> php > print_r( $f );
>> Resource id #2
>> php > $s = fread( $f, 10 );
>> php > print_r(strlen($s));
>> 0
>> php > if ($s !== FALSE) print('NOT FALSE');
>> NOT FALSE
>> php > if ($s != FALSE) print('NOT FALSE');
>> php > if ($s == FALSE) print('IS FALSE');
>> IS FALSE
>
> I get the same exact result. In fact, var_dump($s) should tell you that
> $s is the empty string. So, fread() is reading nothing forever, rather
> than to return FALSE as the manual page states. Anyway, in my opinion
> fopen should fail immediately trying to open the current directory,
> in the first place.
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