PHP 8.4.1 Released!

    DOMNode::hasChildNodes

    (PHP 5, PHP 7, PHP 8)

    DOMNode::hasChildNodes — Checks if node has children

    Description

    public DOMNode::hasChildNodes(): bool

    This function checks if the node has children.

    Parameters

    This function has no parameters.

    Return Values

    Returns true on success or false on failure.

    See Also

    Improve This Page

    Learn How To Improve This Page • Submit a Pull Request • Report a Bug
    ＋add a note

    User Contributed Notes 4 notes

    up
    6
    sansana
    14 years ago
    Personally I think using a simple:[code]if($DOMNode->childNodes <>0){}[/code] works better.
    up
    6
    syngcw at syncgw.com
    14 years ago
    This function is a bit tricky. If you want to find XML childnodes it is useless. You need to create a work-around:

    <?php

    $x     = new DOMDocument();
    $x->loadXML('
    <A>
    <B>b-text</B>
    <C>
    <D>d-text</D>
    </C>
    <E/>
    </A>'    );

    shownode($x->getElementsByTagName('A')->item(0));
    function     shownode($x) {
    foreach (    $x->childNodes as $p)
    if (    hasChild($p)) {
    echo     $p->nodeName.' -> CHILDNODES<br>';
    shownode($p);
    } elseif (    $p->nodeType == XML_ELEMENT_NODE)
    echo     $p->nodeName.' '.$p->nodeValue.'<br>';
    }
    function     hasChild($p) {
    if (    $p->hasChildNodes()) {
    foreach (    $p->childNodes as $c) {
    if (    $c->nodeType == XML_ELEMENT_NODE)
    return     true;
    }
    }
    return     false;
    }

    ?>

    shows:
    B b-text
    C -> CHILDNODES
    D d-text
    E
    up
    4
    richard dot gildx at gmail dot com
    12 years ago
    This "hasChildNodes()" exercise is simple enough to make it clear and understandable. Or, you could take it as a tag empty check. By Richard Holm, Sweden.

    <?php
    $xmldoc    =
    '<?xml version="1.0" ?>
    <root>
    <text>Text</text>
    <none/>
    <empty></empty>
    <space> </space>
    </root>'    ;

    $domdoc=new DOMDocument();
    $domdoc->loadXML($xmldoc);

    $tag=$domdoc->getElementsByTagName('root')->item(0);
    $v=$tag->hasChildNodes()?" hasChildNodes":" hasNoChildNodes";
    echo     $tag->tagName.$v."<br/>";

    $tag=$domdoc->getElementsByTagName('text')->item(0);
    $v=$tag->hasChildNodes()?" hasChildNodes":" hasNoChildNodes";
    echo     $tag->tagName.$v."<br/>";

    $tag=$domdoc->getElementsByTagName('none')->item(0);
    $v=$tag->hasChildNodes()?" hasChildNodes":" hasNoChildNodes";
    echo     $tag->tagName.$v."<br/>";

    $tag=$domdoc->getElementsByTagName('empty')->item(0);
    $v=$tag->hasChildNodes()?" hasChildNodes":" hasNoChildNodes";
    echo     $tag->tagName.$v."<br/>";

    $tag=$domdoc->getElementsByTagName('space')->item(0);
    $v=$tag->hasChildNodes()?" hasChildNodes":" hasNoChildNodes";
    echo     $tag->tagName.$v."<br/>";
    ?>

    Output:
    root hasChildNodes
    text hasChildNodes
    none hasNoChildNodes
    empty hasNoChildNodes
    space hasChildNodes
    up
    -5
    Anonymous
    9 years ago
    Hi what if its a dynamic file and we cannot use get elements by tag name then how do we print the contents of all level tags?
    ＋add a note
    To Top