This is the recommended (W3C) function name for the equivalent:
http://php.net/manual/en/domtext.iswhitespaceinelementcontent.php
See there for additional notes.
(PHP 5 >= 5.1.0, PHP 7, PHP 8)
DOMText::isElementContentWhitespace — Returns whether this text node contains whitespace in element content
Questa funzione non contiene parametri.
This is the recommended (W3C) function name for the equivalent:
http://php.net/manual/en/domtext.iswhitespaceinelementcontent.php
See there for additional notes.