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 — Returns whether this text node contains whitespace in element content
Questa funzione non contiene parametri.
Restituisce true
in caso di successo, false
in caso di fallimento.
This is the recommended (W3C) function name for the equivalent:
http://php.net/manual/en/domtext.iswhitespaceinelementcontent.php
See there for additional notes.