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    DOMElement::removeAttributeNode

    (PHP 5, PHP 7, PHP 8)

    DOMElement::removeAttributeNode — Removes attribute

    Description

    public DOMElement::removeAttributeNode(DOMAttr $attr): DOMAttr|false

    Removes attribute attr from the element.

    Parameters

    attr

    The attribute node.

    Return Values

    Returns true on success or false on failure.

    Errors/Exceptions

    DOM_NO_MODIFICATION_ALLOWED_ERR

    Raised if the node is readonly.

    DOM_NOT_FOUND_ERROR

    Raised if attr is not an attribute of the element.

    See Also

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    User Contributed Notes 1 note

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    2
    xr07354 at gmx dot de
    11 years ago
    Basic: I use PHP5.4.9 from Ubuntu 13.04 repository. The aim of my code is to iterate HTML source (as a DomDocument) recursively and cleanup everything that is not valid to be used inside Epub files (i.e. and attribute align is not valid for paragraphs in Epubs).

    FIRST: Today I tried removing attributes from a DOMElement using this simple code:
    <?php
    for ( $k=0; $k < $element->attributes->length; $k++) {
        if(     /* some rule */ ){
                var_dump( $element->attributes->item($k)->nodeName);
                $element->removeAttributeNode( $element->attributes->item($k));
        }
    }
    ?>
    Unfortunately all attributes still existed when this loop was finished, even if these var_dumps told me that deleting them was tried.

    I solved this problem iterating the attributes list backward:
    <?php
    for ( $k = $element->attributes->length - 1; $k >= 0; --$k) {
        if(     /* same rule */ ){
                var_dump( $element->attributes->item($k)->nodeName);
                $element->removeAttributeNode( $element->attributes->item($k));
        }
    }
    ?>
    SECOND: DOMElement::removeAttributeNode does NOT return a bool but a DOMAttr object.
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