(PHP 5, PHP 7)
DOMDocument::createEntityReference — Create new entity reference node
public DOMDocument::createEntityReference ( string $name ) : DOMEntityReference
This function creates a new instance of class DOMEntityReference. This node will not show up in the document unless it is inserted with (e.g.) DOMNode::appendChild().
name
The content of the entity reference, e.g. the entity reference minus the leading & and the trailing ; characters.
The new DOMEntityReference or false if an error occurred.
DOM_INVALID_CHARACTER_ERR
Raised if name contains an invalid character.
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https://www.php.net/manual/en/domdocument.createentityreference.php