DomDocument removeChild in foreach reindexing the dom

Question

I am trying to remove tags pwith attributedata-spotid

        $dom = new DOMDocument();
        @$dom->loadHTML($description);
        $pTag = $dom->getElementsByTagName('p');

        foreach ($pTag as $value) {
            /** @var DOMElement $value */
            $id = $value->getAttribute('data-spotid');
            if ($id) {
                $value->parentNode->removeChild($value);
            }
        }

but when I remove the child, it reindexes the dom. Suppose I have 8 elements that I deleted, it will reindex it, and the second element will be the first, and it will not delete it, going to the second, which is now the 3rd element.

Answer 1

DomNode::removeChild, , -, , foreach , , ( - ).

, node , , , "to-be-deleted" . :

$dom = new DOMDocument();
@$dom->loadHTML($description);
$pTag = $dom->getElementsByTagName('p');

$spotid_children = array();

foreach ($pTag as $value) {
    /** @var DOMElement $value */
    $id = $value->getAttribute('data-spotid');
    if ($id) {
        $spotid_children[] = $value; 
    }
}

foreach ($spotid_children as $spotid_child) {
    $spotid_child->parentNode->removeChild($spotid_child); 
}

Answer 2

:

        $dom = new DOMDocument();
        @$dom->loadHTML($description);
        $pTag = $dom->getElementsByTagName('p');
        $count = count($pTag)
        for($i = 0; $i < $count; $i++) {
            /** @var DOMElement $value */
            $value = $pTag[$i];
            $id = $value->getAttribute('data-spotid');
            if ($id) {
                $i--;$count--;
                $value->parentNode->removeChild($value);
            }
        }

Answer 3

, . :.

$elements = iterator_to_array($elements);

, , . , .

:.

<?php
$doc = new DOMDocument('1.0', 'UTF-8');
$doc->loadXML(<<<__XML
<?xml version="1.0" encoding="UTF-8"?>
<root>
    <element>1</element>
    <element attr="a">2</element>
    <element>3</element>
    <element>4</element>
    <element attr="a">5</element>
    <element attr="a">6</element>
    <element>7</element>
    <element>8</element>
</root>
__XML
);

$xpath = new DOMXPath($doc);
$elements = $xpath->query('//element[@attr]');

foreach ($elements as $element) {
    $element->parentNode->removeChild($element);
}

echo $doc->saveXML();

: https://3v4l.org/CM9Fv

Answer 4

(, $dom (DOM), ). JavaScript:

$ptag = $dom.all.tags("p");
$ptag = [].slice.call($ptag);
$i = 0; 
while($ptag[$i]){
'data-spotid' in $ptag[$i].attributes ? $ptag[$i++].outerHTML = "" : 0
}

: outerHTML , node. Firefox, , (11+). MDN ref

all.tags() ; , Firefox , getElementsByTagName().