Why can't I get rid of this  ?

Question

Each line is a string

 4 
 minutes 
 12
 minutes
 16
 minutes

I was able to remove

Answer 1

This looks like an encoding error - your document is encoded with UTF-8, but is being rendered as ASCII. Solving your encoding mis-match will solve your issues. You could try using utf8_decode() on your source before using DOMdocument::loadHTML()

Here's an alternative solution from the DOMdocument::loadHTML() documentation page.