Submit a Pull Request Report a Bug

    DOMElement::setAttribute

    (PHP 5, PHP 7)

    DOMElement::setAttribute — Adds new attribute

    Opis

    public DOMElement::setAttribute ( string $name , string $value ) : DOMAttr

    Sets an attribute with name name to the given value. If the attribute does not exist, it will be created.

    Parametry

    name

    The name of the attribute.

    value

    The value of the attribute.

    Zwracane wartości

    The new DOMAttr or FALSE if an error occurred.

    Błędy/Wyjątki

    DOM_NO_MODIFICATION_ALLOWED_ERR

    Raised if the node is readonly.

    Przykłady

    Przykład #1 Setting an attribute

    <?php
    $doc     = new DOMDocument("1.0");
    $node = $doc->createElement("para");
    $newnode = $doc->appendChild($node);
    $newnode->setAttribute("align", "left");
    ?>

    Zobacz też:

    add a note add a note

    User Contributed Notes 5 notes

    up
    10
    Rakesh Verma - rakeshnsony at gmail dot com
    13 years ago
    <?php
    //Store your html into $html variable.
    $html="
    <html>
    <head>
    <title>Untitled Document</title>
    </head>

    <body>
        <a href='http://example.com'>Example</a><br>
        <a href='http://google.com'>Google</a><br>
       
        <a href='http://www.yahoo.com'>Yahoo</a><br>
    </body>

    </html>"    ;

    $dom = new DOMDocument();
    $dom->loadHTML($html);

    //Evaluate Anchor tag in HTML
    $xpath = new DOMXPath($dom);
    $hrefs = $xpath->evaluate("/html/body//a");

    for (    $i = 0; $i < $hrefs->length; $i++) {
                $href = $hrefs->item($i);
                $url = $href->getAttribute('href');

                //remove and set target attribute       
                $href->removeAttribute('target');
                $href->setAttribute("target", "_blank");

                $newURL=$url."/newurl";

                //remove and set href attribute       
                $href->removeAttribute('href');
                $href->setAttribute("href", $newURL);
    }

    // save html
    $html=$dom->saveHTML();

    echo     $html;

    ?>
    up
    0
    address at gmail dot com
    15 years ago
    If wanting to set an attribute of an element with unique id of "1"

    <?php
    $dom     = new DomDocument();
    $dom->load('test.xml');
    $xp = new DomXPath($dom);
    $res = $xp->query("//*[@id = '1']");
    $res->item(0)->setAttribute('title','2');
    $dom->save('test.xml');
    ?>
    up
    -1
    lehal2@hotmail
    10 years ago
    The use of Dom to first remove and then add the width and height to the first img tag from the text.I hope it help you to save your time
    <?php
    $html     = '

                <img src="http://www.example.com/images/header.jpg" width="898" height="223" style="border-bottom:5px solid #cccccc;"/>
            <img src="http://www.example.com/images/header2.jpg" width="898" height="223" style="border-bottom:5px solid #cccccc;"/>
            '    ;

    $doc = DOMDocument::loadHTML($html);
    $c =0;
    foreach(    $doc->getElementsByTagName('img') as $image){
        if (    $c>0) continue;
        foreach(array(    'width', 'height') as $attribute_to_remove){
            echo     $attribute_to_remove;
            if(    $image->hasAttribute($attribute_to_remove)){
                    $image->removeAttribute($attribute_to_remove);

            }
            if(    $attribute_to_remove=='height'){
                if(!    $image->hasAttribute($attribute_to_remove)){
                        $image->setAttribute($attribute_to_remove,'220');

                }}
            if(    $attribute_to_remove=='width'){
          if(!    $image->hasAttribute($attribute_to_remove)){
                    $image->setAttribute($attribute_to_remove,'700');

            }}
                $c = $c+1;
        }
    }
    echo     $doc->saveHTML();
    up
    -3
    karvjorm at users.sourceforge.net
    17 years ago
    $dom = new DomDocument('1.0','iso-8859-15');

    $ht_ml = $dom->appendChild($dom->createElement('html'));
    $ht_ml->setAttribute('xmlns','http://www.w3.org/1999/xhtml');
    $ht_ml->setAttribute('xml:lang','fi');
    $ht_ml->setAttribute('lang','fi');

    Result:

    <?xml version="1.0" encoding="iso-8859-15"?>
    <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fi" lang="fi">
    up
    -7
    Vasil Rangelov
    16 years ago
    @karvjorm,
    Using this method is not exactly a good practice. Infact, I think it may be a bug.
    Names beginning with "xml" are reserved (for namespaces in this case).
    setAttribute() should return false in this case I think, but I suppose it doesn't.

    Still, the right way to do it is with createElementNS().
    It lets you specify the namespace when creating the element node.

    So the equivalent to yours ($html added to allow word wrapping) is:

    $dom = new DomDocument('1.0','iso-8859-15');
    $html = $dom->createElementNS('http://www.w3.org/1999/xhtml', 'html');
    $ht_ml = $dom->appendChild($html);
    $ht_ml->setAttribute('xml:lang','fi');
    $ht_ml->setAttribute('lang','fi');
    add a note add a note
    To Top