https://www.php.net/manual/ja/domdocument.createtextnode.php
PHP: DOMDocument::createTextNode - Manual
phpdomdocumentcreatetextnodemanual
https://www.w3schools.com/jsref/met_document_createtextnode.asp
HTML DOM Document createTextNode() Method
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML...
html domdocumentcreatetextnodemethod
https://www.php.net/manual/en/domdocument.createtextnode.php
PHP: DOMDocument::createTextNode - Manual
Create new text node
phpdomdocumentcreatetextnodemanual
https://javascript.info/task/createtextnode-vs-innerhtml
createTextNode vs innerHTML vs textContent
createtextnodevsinnerhtmltextcontent