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DOMElement::removeAttributeNode

(PHP 5, PHP 7)

DOMElement::removeAttributeNodeRemoves attribute

说明

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

Removes attribute attr from the element.

参数

attr

The attribute node.

返回值

成功时返回 true, 或者在失败时返回 false

错误/异常

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.

参见

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1位用户评论

[#1] ▲2▼ xr07354@gmx.de [100%] (2013-06-18 13:16:13)

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.