Re: is_array() doesn't work on DOM properties?

John Smith wrote:

This is with simplexml_load_file(). Using an empty() check instead of is_array() does the trick (though - note to php hackers - I think is_array() SHOULD work).

ah simplexml, in that case is_array() shouldn't and won't work because it's 'all' objects (although I can understand why it seems like it should work!) - but the objects allow array(-like) iteration of contained elements. read this again very carefully: http://be2.php.net/simplexml note also that even values are actually objects that implement the __toString() interface (although I'm not sure that is the correct way to explain/name it) where by the object is automatically cast to a string in a sensible way when used with echo/print ... as the exmaples on the simplexml page show you have to cast manually if you want to do other things with the string representation (like using the actually value of the object as the test value of a switch block. here is some more reading material: http://www.onlamp.com/pub/a/php/2004/01/15/simplexml.html good luck

John --- Jochem Maas <jochem@iamjochem.com> wrote:

John Smith wrote:

I'm trying to avoid error messages while iterating over DOM properties. e.g.

if(is_array($dom->stuff->props)) {

maybe you can get roudn the problem by saying?: if($dom->stuff->props) { or?: if(!empty($dom->stuff->props)) {

foreach($dom->stuff->props as $prop) { ... } } It works without the is_array() check, but not

with my guess is you'll find that $dom->stuff->props is an object which overloads the array accessor stuff... basically it's implementing Iterator (or some other SPL Interface) hard to tell though because you don't mention which DOM related extension you are using.

it. I've done var_dumps and $dom->stuff->props is indeed an array. I've also tried using an

intermediate

variable ($stuff=$dom->stuff) then checking that,

but

that doesn't work either). John

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