(PHP 5, PHP 7)
DOMElement::getAttribute — Returns value of attribute
public DOMElement::getAttribute ( string $name ) : string
Gets the value of the attribute with name name
for the current node.
name
The name of the attribute.
The value of the attribute, or an empty string if no attribute with the given name
is found.
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https://www.php.net/manual/en/domelement.getattribute.php