PHP 5.5.16 is released

DOMElement::setAttribute

(PHP 5)

DOMElement::setAttributeAdds new attribute

Description

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

تعیین ویژگی با نام name به مقدار داده شده. اگر ویژگی وجود نداشته باشد ساخته می‌شود.

Parameters

name

نام ویژگی.

value

مقدار ویژگی.

Return Values

DOMAttr جدید یا FALSE اگر خطا رخ داده باشد.

Errors/Exceptions

DOM_NO_MODIFICATION_ALLOWED_ERR

ایجاد اگر گره فقط خواندنی باشد.

Examples

Example #1 تعیین ویژگی

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

See Also

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User Contributed Notes 5 notes

up
4
Rakesh Verma - rakeshnsony at gmail dot com
3 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
6 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
Vasil Rangelov
7 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');
up
-1
karvjorm at users.sourceforge.net
7 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
-1
lehal2@hotmail
1 year 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();
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