(PHP 5, PHP 7)
DOMDocument::createAttribute — Create new attribute
This function creates a new instance of class DOMAttr. This node will not show up in the document unless it is inserted with (e.g.) DOMNode::appendChild().
nameThe name of the attribute.
The new DOMAttr or FALSE if an error occurred.
DOM_INVALID_CHARACTER_ERR
Raised if name contains an invalid character.