DOMNode::compareDocumentPosition

    (PHP 8 >= 8.4.0)

    DOMNode::compareDocumentPosition — Compares the position of two nodes

    Descrizione

    public DOMNode::compareDocumentPosition(DOMNode $other): int

    Compares the position of the other node relative to this node.

    Elenco dei parametri

    other

    The node for which the position should be compared for, relative to this node.

    Valori restituiti

    A bitmask of the DOMNode::DOCUMENT_POSITION_* constants.

    Esempi

    Example #1 DOMNode::compareDocumentPosition() example

    <?php
    $xml     = <<<XML
    <root>
    <child1/>
    <child2/>
    </root>
    XML;

    $dom = new DOMDocument();
    $dom->loadXML($xml);

    $root = $dom->documentElement;
    $child1 = $root->firstElementChild;
    $child2 = $child1->nextElementSibling;

    var_dump($root->compareDocumentPosition($child1));
    var_dump($child2->compareDocumentPosition($child1));
    ?>

    Il precedente esempio visualizzerà:

    int(20) // This is DOMNode::DOCUMENT_POSITION_CONTAINED_BY | DOMNode::DOCUMENT_POSITION_FOLLOWING
int(2)  // This is DOMNode::DOCUMENT_POSITION_PRECEDING

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