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Editorial Team
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Asked: 2026-06-06T04:05:58+00:00

how to write this correctly? for($i=2;$i<5;$i++) { $items{$i} = $doc{$i}->getElementsByTagName(‘url’); } got an error:

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how to write this correctly?

for($i=2;$i<5;$i++)
{
   $items{$i} = $doc{$i}->getElementsByTagName('url'); 
}

got an error:

Fatal error: Call to a member function getElementsByTagName() on a non-object

Thanks,
bye

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1 Answer

  1. Editorial Team

    This test worked for me:-

    $html1 = "<html><head><title>Test</title></head><body><p>Doc1 P1</p><p>Doc1 P2</p></body></html>";
$html2 = "<html><head><title>Test</title></head><body><p>Doc2 P1</p><p>Doc2 P2</p></body></html>";

$doc1 = new DOMDocument();
$doc1->loadHTML($html1);
$doc2 = new DOMDocument();
$doc2->loadHTML($html2);

for($i=1;$i<3;$i++){
    var_dump(${'doc'.$i}->getElementsByTagName('p'));
}

    So, your code should look like this:-

    for($i=2;$i<5;$i++)
{
   ${'items'.$i} = ${'doc'.$i}->getElementsByTagName('url'); 
}

    Unless you mean for $items to be an array, in which case it should look like this:-

    for($i=2;$i<5;$i++)
{
   $items[] = ${'doc'.$i}->getElementsByTagName('url'); 
}
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