ansaurus

Question

get the sub index in foreach loop in simpleXMLElement

Answer 1

+1 A:

This is because simpleXML structures are not normal arrays but iterators who do not have an array index.

I don't know of any other solution than keeping track manually using a variable:

 $index = 0;
 $xml = simplexml_load_file('post.xml');

 foreach($xml->item as $item )
   {
       ....
       $index++;
    }

Pekka 2010-10-12 13:39:29

I think you mean `$key = 0;` (`$index` would be a much better name).

Felix Kling 2010-10-12 13:43:04

@Felix cheers, fixed. index is a good idea

Pekka 2010-10-12 13:46:14

Answer 2

+1 A:

AFAIK with heredocs format, you need to wrap variables in curly braces:

<a href="#slide-{$key}">
  <h3>{$item->title}</h3>
</a>

Sarfraz 2010-10-12 13:39:59

Won't fix the issue I think: `$key` is `item` when walking through an XML Element

Pekka 2010-10-12 13:46:53

Answer 3

A:

You can use a for loop instead of a foreach like this :

$item = $xml->item;
$howMany = count($item);
for($i = 0; $i < $howMany; $i++){
echo <<<HTML
                    <li>
                    <div class="published">
                        <span class="day">13</span>
                        Sep 2010
                    </div>

                    <div class="summary">
                    <a href="#slide-$i">
                            <h3>$item->title</h3>
                    </a>
                    </div>
                    </li>

HTML;
}

Chouchenos 2010-10-12 13:44:07

Where is `$item` being fetched? I don't think this method will work for an XML element

Pekka 2010-10-12 13:50:18

you're right, bad copy/paste, edited.

Chouchenos 2010-10-12 13:53:55

Answer 4

A:

Heredoc

might try

<a href="#slide-{$key}">

Phill Pafford 2010-10-12 13:45:10

Answer 5

A:

You could use SimpleXMLElement::xpath to return an array of the <item> elements, then access the array's keys as you want.

foreach ($xml->xpath('/items/item') as $key => $item)

salathe 2010-10-13 11:53:42

ansaurus

tags:

views:

answers:

get the sub index in foreach loop in simpleXMLElement

related questions