Hide page breaks on load

Hi WordPress,

I have a page that has page breaks within it (<!– nextpage –>) to split the content into multiple pages. I’m looking to remove the page breaks before load when certain sources hit the page, ideally using PHP. My thought process was that i could use the query string

http://example.com/post/?source=example

as an indicator for whether the page breaks will be there or not. But my question is whether it’s actually possible to remove the page breaks that late? Considering the DOM is already loading when the php is executing but it hasn’t reached the content, i’d assume not but i’d love to get the feature in.

Chris