2.0 is not an integer. is_integer(2.0) returns false, which is '' in string contexts.

Hi!

I still think is_integer() is buggy, I've this code-extract wich worked fine with PHP 4.1.2 and doesn't work with 4.2.2

$MaxWidth = "50"; 
// ...
$PerLines = floor(400/$MaxWidth);
//...
while( ... ) {
  // ...
  if (is_integer($i/$PerLines) ) { 
    //... 
  } 
}

It's actualy an extract from the phpmychat (don't know wich version, I think one of the latest), on PHP 4.1.2 the if-clause matches every 8 iterations, on PHP 4.2.2 never. If you exchance the if-clause with this:

if ( $i % 8 == 0 ) {

you get a match every 8 iterations, so is_integer has to be buggy.

Thanks!
Sacher

It's still phpmychat's error - or a fixed bug in 4.1.2.
Return type of floor is float - not integer:
gettype(floor(400/"50"));

Consistent with:
http://www.php.net/float

i don't see what makes you so sure about is_integer() bugginess. nothing in what you posted supports your claim.

if ($i % 8 == 0) is *not* equivalent to the is_integer() test, because it actually *ignores* the type of the result of the modulo expression.

besides, i can't reproduce it either:

    script:

    echo PHP_VERSION, "\n";
    var_dump(is_integer(8/(400/50)));

    output:

    4.2.2
    bool(true)