DOMDocument parsing

[greenheart]

Hello, I am parsing an xml file from an API which I have converted into a DOMDocument in php. This is mostly fine but one problem I have is when I do this:

$feeditem->getElementsByTagName('extra');

 

as part of a forall statment and the element extra doesn't exist in one of the feeditems I am iterating through in the forall condition then I get an error.

 

I think I need some kind of statment like:

 

if ($feeditem->getElementsByTagName('extra')  ISN'T NULL)

 

But don't know how to formulate it. Please help. Thanks.

[chronister]

I think you mean foreach....

 

foreach($this as $that){
if (!empty($feeditem->getElementsByTagName('extra')){
    // do something here.
}
}

[teynon]

if (!is_null($feeditem->getElementsByTagName('extra')))

[greenheart]

Yes Chronister I meant foreach.

 

I tried your code and it gave an error but thanks for trying. Tenyon yours worked so thanks.

 

Prob solved.

 

 

[chronister]

yeah, mine has a syntax error....

 

 

 

Should be ....

foreach($this as $that){
if (!empty($feeditem->getElementsByTagName('extra'))){
    // do something here.
}
}

[greenheart]

SORRY I was wrong, I haven't got it working.

 

basically when 'extra' isn't detected by getelementsbetagname I get a non-object error trying Tenyon's and "Can't use method return value in write contex" with yours Chronister.

 

So I need the if statement to specify that it isn't a non-object, I think?

[teynon]

Your going to have to post more of your script for us to know what else is going on or better understand what you are checking for.

[greenheart]

Sorry here's the code chunk:

 

if (!empty($feeditem->getElementsByTagName('extra'))){
$extra = $feeditem->getElementsByTagName('extra');
        $extraname = $extra->item(0)->getAttribute('name');
        }

 

Code works fine if the DOMdocument has an 'extra' element in each of the $feeditems. Your advice is really appreciated.

[greenheart]

Anyone?