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get the sub index in foreach loop in simpleXMLElement

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佛祖请我去吃肉
佛祖请我去吃肉 2020-12-19 13:38 


  
    This is title1
    This is desc1
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  • Happy的楠姐
    2020-12-19 14:25

    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)
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  • 心在旅途
    2020-12-19 14:27

    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++;
    }
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  • 隐瞒了意图╮
    2020-12-19 14:29

    Heredoc

    might try

    <a href="#slide-{$key}">
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  • 醉话见心
    2020-12-19 14:30

    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;
}
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  • 长情又很酷
    2020-12-19 14:38

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

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