This is the recommended (W3C) function name for the equivalent:
http://php.net/manual/en/domtext.iswhitespaceinelementcontent.php
See there for additional notes.
(No version information available, might only be in Git)
DOMText::isElementContentWhitespace — Devuelve si este nodo de texto contiene espacios en blanco en el contenido del elemento
Esta función no contiene ningún parámetro.
This is the recommended (W3C) function name for the equivalent:
http://php.net/manual/en/domtext.iswhitespaceinelementcontent.php
See there for additional notes.